Physics
Popular Victorian physics — mostly outdated but historically interesting.
The Notebooks of Leonardo Da Vinci — Complete
Leonardo, da Vinci
30,348 Gutenberg downloadsen2004Difficulty 52 (Graduate)The Story of the Heavens
Ball, Robert S. (Robert Stawell)
11,310 Gutenberg downloadsen2008Difficulty 49 (College)A Budget of Paradoxes, Volume I
De Morgan, Augustus
10,936 Gutenberg downloadsen2007Difficulty 55 (Graduate)The Astronomy of Milton's 'Paradise Lost'
Orchard, Thomas Nathaniel
9,344 Gutenberg downloadsen2009Difficulty 64 (Academic)Steam, Its Generation and Use
Babcock & Wilcox Company
6,915 Gutenberg downloadsen2007Difficulty 64 (Academic)Astronomy for Amateurs
Flammarion, Camille
6,819 Gutenberg downloadsen2008Difficulty 51 (Graduate)The Martyrs of Science, or, The lives of Galileo, Tycho Brahe, and Kepler
Brewster, David
6,486 Gutenberg downloadsen2008Difficulty 79 (Expert)Myths and Marvels of Astronomy
Proctor, Richard A. (Richard Anthony)
5,714 Gutenberg downloadsen2008Difficulty 66 (Academic)A Color Notation A measured color system, based on the three qualities Hue, Value and Chroma
Munsell, A. H. (Albert Henry)
3,924 Gutenberg downloadsen2008Difficulty 51 (Graduate)Experiments and Considerations Touching Colours (1664)
Boyle, Robert
3,832 Gutenberg downloadsen2004Difficulty 64 (Academic)Goethe's Theory of Colours
Goethe, Johann Wolfgang von
2,733 Gutenberg downloadsen2015Difficulty 68 (Academic)Philosophiae Naturalis Principia Mathematica
Newton, Isaac
2,692 Gutenberg downloadsla2009The book of wonders : $b gives plain and simple answers to the thousands of everyday questions that are asked and which all should be able to, but cannot answer...
Unknown
2,547 Gutenberg downloadsen2025Difficulty 48 (College)Opticks : $b or, A treatise of the reflections, refractions, inflections and colours of light
Newton, Isaac
2,508 Gutenberg downloadsen2010Difficulty 58 (Graduate)Novum organum : $b or, True suggestions for the interpretation of nature
Bacon, Francis
2,364 Gutenberg downloadsen2014Difficulty 71 (Expert)History of the Transformer
Uppenborn, Friedrich
2,320 Gutenberg downloadsen2018Difficulty 59 (Graduate)On Growth and Form
Thompson, D'Arcy Wentworth
2,208 Gutenberg downloadsen2017Difficulty 53 (Graduate)Rollo's Experiments
Abbott, Jacob
1,905 Gutenberg downloadsen2008Difficulty 35 (High School)The Astronomy of the Bible An Elementary Commentary on the Astronomical References of Holy Scripture
Maunder, E. Walter (Edward Walter)
1,798 Gutenberg downloadsen2009Difficulty 73 (Expert)Experimental Researches in Electricity, Volume 1
Faraday, Michael
1,768 Gutenberg downloadsen2005Difficulty 62 (Academic)Relativity: The Special and General Theory
Einstein, Albert
1,741 Gutenberg downloadsen2009Difficulty 62 (Academic)The reason why : $b a careful collection of many hundreds of reasons for things which, though generally believed, are imperfectly understood. A book of condensed scientific knowledge for the million
Philp, Robert Kemp
1,725 Gutenberg downloadsen2014Difficulty 86 (Specialist)How to Use the Popular Science Library; History of Science; General Index
Serviss, Garrett Putman & Selwyn-Brown, Arthur
1,718 Gutenberg downloadsen2016Difficulty 64 (Academic)The Foundations of Science: Science and Hypothesis, The Value of Science, Science and Method
Poincaré, Henri
1,669 Gutenberg downloadsen2012Difficulty 60 (Graduate)Encyclopaedia Britannica, 11th Edition, "Electrostatics" to "Engis" Volume 9, Slice 3
Various
1,481 Gutenberg downloadsen2011Difficulty 66 (Academic)German Science Reader An Introduction to Scientific German, for Students of Physics, Chemistry and Engineering
Kroeh, Charles Frederick
1,470 Gutenberg downloadsde2007Experiments with Alternate Currents of High Potential and High Frequency A Lecture Delivered before the Institution of Electrical Engineers, London
Tesla, Nikola
1,464 Gutenberg downloadsen2004Difficulty 63 (Academic)Index of the Project Gutenberg Works of Benjamin Franklin
Franklin, Benjamin
1,378 Gutenberg downloadsen2019Difficulty 58 (Graduate)The Concept of Nature The Tarner Lectures Delivered in Trinity College, November 1919
Whitehead, Alfred North
1,377 Gutenberg downloadsen2006Difficulty 62 (Academic)How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use
Williams, Archibald
1,373 Gutenberg downloadsen2009Difficulty 58 (Graduate)Bibliographical history of electricity & magnetism, chronologically arranged
Unknown
1,367 Gutenberg downloadsen2024Difficulty 62 (Academic)Cosmos: A Sketch of the Physical Description of the Universe, Vol. 1
Humboldt, Alexander von
1,334 Gutenberg downloadsen2005Difficulty 67 (Academic)Discoveries and Inventions of the Nineteenth Century
Routledge, Robert
1,312 Gutenberg downloadsen2017Difficulty 51 (Graduate)The Boy Electrician
Morgan, Alfred Powell
1,297 Gutenberg downloadsen2020Difficulty 47 (College)Treatise on light : $b In which are explained the causes of that which occurs in reflexion, & in refraction and particularly in the strange refraction of Iceland crystal
Huygens, Christiaan
1,281 Gutenberg downloadsen2005Difficulty 58 (Graduate)Pierre Curie
Curie, Marie
1,275 Gutenberg downloadsen2022Difficulty 48 (College)The sidereal messenger of Galileo Galilei : $b and a part of the preface to Kepler's Dioptrics containing the original account of Galileo's astronomical discoveries
Galilei, Galileo & Kepler, Johannes
1,252 Gutenberg downloadsen2014Difficulty 70 (Academic)The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told
Thomson, J. Arthur (John Arthur)
1,241 Gutenberg downloadsen2007Difficulty 66 (Academic)Zetetic astronomy: Earth not a globe! An experimental inquiry into the true figure of the earth etc.
Parallax
1,201 Gutenberg downloadsen2023Difficulty 57 (Graduate)On the magnet, magnetick bodies also, and on the great magnet the earth a new physiology, demonstrated by many arguments & experiments
Unknown
1,134 Gutenberg downloadsen2010Difficulty 68 (Academic)Popular Scientific Recreations in Natural Philosphy, Astronomy, Geology, Chemistry, etc., etc., etc.
Tissandier, Gaston
1,106 Gutenberg downloadsen2016Difficulty 62 (Academic)Encyclopaedia Britannica, 11th Edition, "Matter" to "Mecklenburg" Volume 17, Slice 8
Various
1,104 Gutenberg downloadsen2013Difficulty 71 (Expert)Comets and Meteors Their phenomena in all ages; their mutual relations; and the theory of their origin.
Kirkwood, Daniel
1,097 Gutenberg downloadsen2012Difficulty 56 (Graduate)Giant brains; or, Machines that think
Berkeley, Edmund Callis
1,090 Gutenberg downloadsen2022Difficulty 48 (College)History of the Conflict Between Religion and Science
Draper, John William
1,073 Gutenberg downloadsen1998Difficulty 62 (Academic)A Field Book of the Stars
Olcott, William Tyler
1,056 Gutenberg downloadsen2007Difficulty 49 (College)Einstein's Theories of Relativity and Gravitation A selection of material from the essays submitted in the competition for the Eugene Higgins prize of $5,000
Bird, J. Malcolm (James Malcolm)
1,042 Gutenberg downloadsen2020Difficulty 59 (Graduate)The Principle of Relativity
Einstein, Albert & Minkowski, H. (Hermann)
1,017 Gutenberg downloadsen2021Difficulty 65 (Academic)Encyclopaedia Britannica, 11th Edition, "Magnetite" to "Malt" Volume 17, Slice 4
Various
1,016 Gutenberg downloadsen2013Difficulty 67 (Academic)A Popular History of Astronomy During the Nineteenth Century Fourth Edition
Clerke, Agnes M. (Agnes Mary)
1,007 Gutenberg downloadsen2009Difficulty 78 (Expert)Six Lectures on Light Delivered In The United States In 1872-1873
Tyndall, John
988 Gutenberg downloadsen2004Difficulty 63 (Academic)Beacon Lights of History, Volume 14: The New Era A Supplementary Volume, by Recent Writers, as Set Forth in the Preface and Table of Contents
Lord, John
976 Gutenberg downloadsen2004Difficulty 56 (Graduate)Valerius Terminus: Of the Interpretation of Nature
Bacon, Francis
960 Gutenberg downloadsen2002Difficulty 60 (Graduate)The Boy's Book of New Inventions
Maule, Harry E. (Harry Edward)
958 Gutenberg downloadsen2014Difficulty 60 (Graduate)The principles of science : $b a treatise on logic and scientific method
Jevons, William Stanley
941 Gutenberg downloadsen2024Difficulty 64 (Academic)Fragments of Science: A Series of Detached Essays, Addresses, and Reviews. V. 1-2
Tyndall, John
927 Gutenberg downloadsen2008Difficulty 54 (Graduate)The A B C of Relativity
Russell, Bertrand
923 Gutenberg downloadsen2022Difficulty 55 (Graduate)Studies in the History and Method of Science, vol. 1 (of 2)
Unknown
919 Gutenberg downloadsen2014Difficulty 57 (Graduate)Pyrometry: A Practical Treatise on the Measurement of High Temperatures
Darling, Charles R. (Charles Robert)
916 Gutenberg downloadsen2018Difficulty 71 (Expert)Woman in Science With an Introductory Chapter on Woman's Long Struggle for Things of the Mind
Zahm, J. A. (John Augustine)
908 Gutenberg downloadsen2011Difficulty 66 (Academic)Mysterious Psychic Forces An Account of the Author's Investigations in Psychical Research, Together with Those of Other European Savants
Flammarion, Camille
900 Gutenberg downloadsen2012Difficulty 55 (Graduate)The Boy's Playbook of Science Including the Various Manipulations and Arrangements of Chemical and Philosophical Apparatus Required for the Successful Performance of Scientific Experiments in Illustration of the Elementary Branches of Chemistry and Natural Philosophy
Pepper, John Henry
898 Gutenberg downloadsen2013Difficulty 61 (Academic)Michael Faraday, His Life and Work
Thompson, Silvanus P. (Silvanus Phillips)
890 Gutenberg downloadsen2021Difficulty 52 (Graduate)The Poetry of Science; or, Studies of the Physical Phenomena of Nature
Hunt, Robert
888 Gutenberg downloadsen2016Difficulty 79 (Expert)The Complete Works in Philosophy, Politics and Morals of the late Dr. Benjamin Franklin, Vol. 2 [of 3]
Franklin, Benjamin
887 Gutenberg downloadsen2015Difficulty 56 (Graduate)Physics
Tower, Willis E. (Willis Eugene) & Cope, Thomas D. (Thomas Darlington) & Smith, Charles H. (Charles Henry) & Turton, Charles M. (Charles Mark)
873 Gutenberg downloadsen2012Difficulty 54 (Graduate)Curiosities of the Sky
Serviss, Garrett Putman
860 Gutenberg downloadsen2004Difficulty 60 (Graduate)Encyclopaedia Britannica, 11th Edition, "Liquid Gases" to "Logar" Volume 16, Slice 7
Various
855 Gutenberg downloadsen2013Difficulty 66 (Academic)Wonderful Balloon Ascents; Or, The Conquest of the Skies A History of Balloons and Balloon Voyages
Marion, Fulgence
853 Gutenberg downloadsen1997Difficulty 59 (Graduate)Records of Steam Boiler Explosions
Marten, Edward Bindon
850 Gutenberg downloadsen2014Difficulty 61 (Academic)The Royal Institution: Its Founder and First Professors
Jones, Bence
849 Gutenberg downloadsen2014Difficulty 52 (Graduate)The Microscope. Its History, Construction, and Application 15th ed. Being a familiar introduction to the use of the instrument, and the study of microscopical science
Hogg, Jabez
848 Gutenberg downloadsen2020Difficulty 67 (Academic)Keely and His Discoveries: Aerial Navigation
Moore, Bloomfield H., Mrs.
845 Gutenberg downloadsen2018Difficulty 60 (Graduate)A History of Science — Volume 1
Williams, Henry Smith & Williams, Edward Huntington
837 Gutenberg downloadsen1999Difficulty 65 (Academic)The New Physics and Its Evolution
Poincaré, Lucien
835 Gutenberg downloadsen2005Difficulty 81 (Specialist)Autobiography of Sir George Biddell Airy
Airy, George Biddell
834 Gutenberg downloadsen2004Difficulty 59 (Graduate)Makers of Electricity
Potamian, Brother & Walsh, James J. (James Joseph)
833 Gutenberg downloadsen2014Difficulty 69 (Academic)The Progress of the Century
Unknown
830 Gutenberg downloadsen2017Difficulty 69 (Academic)Reflections on the Decline of Science in England, and on Some of Its Causes
Babbage, Charles
823 Gutenberg downloadsen1998Difficulty 63 (Academic)A Short History of Astronomy
Berry, Arthur
816 Gutenberg downloadsen2019Difficulty 58 (Graduate)A History of Science — Volume 2
Williams, Henry Smith & Williams, Edward Huntington
813 Gutenberg downloadsen1999Difficulty 63 (Academic)Man or Matter Introduction to a Spiritual Understanding of Nature on the Basis of Goethe's Method of Training Observation and Thought
Lehrs, Ernst
812 Gutenberg downloadsen2004Difficulty 56 (Graduate)A handbook of laboratory glass-blowing
Bolas, Bernard D. (Bernard Dell)
811 Gutenberg downloadsen2010Difficulty 54 (Graduate)The Scientific Monthly, October to December, 1915
Various
802 Gutenberg downloadsen1997Difficulty 64 (Academic)Sidelights on Relativity
Einstein, Albert
801 Gutenberg downloadsen2005Difficulty 69 (Academic)History of the inductive sciences, from the earliest to the present time
Whewell, William
799 Gutenberg downloadsen2022Difficulty 52 (Graduate)Einstein, the searcher : $b his work explained from dialogues with Einstein
Moszkowski, Alexander
797 Gutenberg downloadsen2023Difficulty 61 (Academic)The Life of Galileo Galilei, with Illustrations of the Advancement of Experimental Philosophy Life of Kepler
Bethune, John Elliot Drinkwater
794 Gutenberg downloadsen2013Difficulty 74 (Expert)The Unseen World, and Other Essays
Fiske, John
794 Gutenberg downloadsen1998Difficulty 64 (Academic)Worlds Within Worlds: The Story of Nuclear Energy, Volume 2 (of 3) Mass and Energy; The Neutron; The Structure of the Nucleus
Asimov, Isaac
792 Gutenberg downloadsen2015Difficulty 58 (Graduate)Einstein and the universe: A popular exposition of the famous theory
Nordmann, Charles
788 Gutenberg downloadsen2022Difficulty 58 (Graduate)Michael Faraday, Man of Science
Jerrold, Walter
785 Gutenberg downloadsen2014Difficulty 58 (Graduate)The Life of Sir Isaac Newton
Brewster, David
783 Gutenberg downloadsen2016Difficulty 73 (Expert)Philosophical Transactions of the Royal Society - Vol 1 - 1666 Giving some Accompt of the present Undertakings, Studies, and Labours of the Ingenious in many considerable parts of the World
Various
771 Gutenberg downloadsen2009Difficulty 58 (Graduate)Science for the School and Family, Part I. Natural Philosophy
Hooker, Worthington
771 Gutenberg downloadsen2016Difficulty 49 (College)The Romance of Modern Invention Containing Interesting Descriptions in Non-technical Language of Wireless Telegraphy, Liquid Air, Modern Artillery, Submarines, Dirigible Torpedoes, Solar Motors, Airships, &c. &c.
Williams, Archibald
771 Gutenberg downloadsen2012Difficulty 56 (Graduate)Faraday as a Discoverer
Tyndall, John
770 Gutenberg downloadsen1998Difficulty 56 (Graduate)Soap-Bubbles and the Forces Which Mould Them
Boys, C. V. (Charles Vernon)
767 Gutenberg downloadsen2010Difficulty 48 (College)Personal Recollections, from Early Life to Old Age, of Mary Somerville
Somerville, Mary
758 Gutenberg downloadsen2009Difficulty 56 (Graduate)周髀算經
Unknown
756 Gutenberg downloadszh2004The Story of Great Inventions
Burns, Elmer Ellsworth
752 Gutenberg downloadsen2011Difficulty 57 (Graduate)Michael Faraday Third Edition, with Portrait
Gladstone, J. H. (John Hall)
745 Gutenberg downloadsen2014Difficulty 61 (Academic)The Story of Eclipses
Chambers, George F. (George Frederick)
742 Gutenberg downloadsen2008Difficulty 49 (College)Experiments and Observations on Electricity Made at Philadelphia in America
Franklin, Benjamin
738 Gutenberg downloadsen2014Difficulty 54 (Graduate)General Science
Clark, Bertha May
736 Gutenberg downloadsen2005Difficulty 53 (Graduate)American Journal of Science, Vol. 1.
Various
735 Gutenberg downloadsen2016Difficulty 65 (Academic)Scientific American Supplement, No. 460, October 25, 1884
Various
732 Gutenberg downloadsen2004Difficulty 52 (Graduate)The Substance of Faith Allied with Science (6th Ed.) A Catechism for Parents and Teachers
Lodge, Oliver, Sir
729 Gutenberg downloadsen2015Difficulty 61 (Academic)Little Journeys to the Homes of the Great - Volume 12 Little Journeys to the Homes of Great Scientists
Hubbard, Elbert
728 Gutenberg downloadsen2006Difficulty 47 (College)The Telescope
Bell, Louis
728 Gutenberg downloadsen2016Difficulty 66 (Academic)A History of Science — Volume 3
Williams, Henry Smith & Williams, Edward Huntington
727 Gutenberg downloadsen1999Difficulty 77 (Expert)Experimental Determination of the Velocity of Light Made at the U.S. Naval Academy, Annapolis
Michelson, Albert A. (Albert Abraham)
724 Gutenberg downloadsen2004Difficulty 49 (College)A View of Sir Isaac Newton's Philosophy
Pemberton, Henry
722 Gutenberg downloadsen2016Difficulty 63 (Academic)Common Science
Washburne, Carleton
717 Gutenberg downloadsen2009Difficulty 48 (College)Pleasant Ways in Science
Proctor, Richard A. (Richard Anthony)
717 Gutenberg downloadsen2017Difficulty 59 (Graduate)Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work
Warren, Henry White
716 Gutenberg downloadsen2005Difficulty 50 (College)Monism as Connecting Religion and Science A Man of Science
Haeckel, Ernst
714 Gutenberg downloadsen2005Difficulty 74 (Expert)Encyclopaedia Britannica, 11th Edition, "Hydromechanics" to "Ichnography" Volume 14, Slice 2
Various
712 Gutenberg downloadsen2012Difficulty 70 (Academic)Maria Mitchell: Life, Letters, and Journals
Mitchell, Maria
709 Gutenberg downloadsen2003Difficulty 56 (Graduate)A Guide to the Scientific Knowledge of Things Familiar
Brewer, Ebenezer Cobham
708 Gutenberg downloadsen2012Difficulty 46 (College)Perpetual Motion
Verance, Percy & Dircks, Henry
707 Gutenberg downloadsen2014Difficulty 65 (Academic)Biographies of distinguished scientific men. First series
Arago, F. (François)
706 Gutenberg downloadsen2005Difficulty 52 (Graduate)A Discourse Presented to the Most Serene Don Cosimo II., Great Duke of Tuscany, Concerning the Natation of Bodies Vpon, and Submersion In, the Water.
Galilei, Galileo
703 Gutenberg downloadsen2011Difficulty 67 (Academic)An Introduction to the History of Science
Libby, Walter
702 Gutenberg downloadsen2012Difficulty 62 (Academic)Preliminary Discourse on the Study of Natural Philosophy
Herschel, John F. W. (John Frederick William)
702 Gutenberg downloadsen2017Difficulty 77 (Expert)Harper's Electricity Book for Boys
Adams, Joseph H. (Joseph Henry)
698 Gutenberg downloadsen2021Difficulty 59 (Graduate)The Fourth Dimension
Hinton, Charles Howard
698 Gutenberg downloadsen2022Difficulty 52 (Graduate)Lectures on Stellar Statistics
Charlier, C. V. L. (Carl Vilhelm Ludwig)
697 Gutenberg downloadsen2007Difficulty 57 (Graduate)Tube, Train, Tram, and Car; or, Up-to-date locomotion
Beavan, Arthur H. (Arthur Henry)
697 Gutenberg downloadsen2017Difficulty 62 (Academic)The International Monthly, Volume 5, No. 4, April, 1852
Various
696 Gutenberg downloadsen2011Difficulty 58 (Graduate)Galileo Galilei and the Roman Curia From Authentic Sources
Gebler, Karl von
695 Gutenberg downloadsen2019Difficulty 53 (Graduate)Astronomical Curiosities: Facts and Fallacies
Gore, J. Ellard (John Ellard)
681 Gutenberg downloadsen2012Difficulty 54 (Graduate)Response in the Living and Non-Living
Bose, Jagadis Chandra
679 Gutenberg downloadsen2006Difficulty 65 (Academic)Essays: Scientific, Political, & Speculative; Vol. 2 of 3 Library Edition (1891), Containing Seven Essays not before Republished, and Various other Additions.
Spencer, Herbert
677 Gutenberg downloadsen2016Difficulty 67 (Academic)Side-Lights on Astronomy and Kindred Fields of Popular Science
Newcomb, Simon
677 Gutenberg downloadsen2003Difficulty 50 (College)Radio-Activity
Rutherford, Ernest
674 Gutenberg downloadsen2021Difficulty 65 (Academic)The Practical Astronomer Comprising illustrations of light and colours--practical descriptions of all kinds of telescopes--the use of the equatorial-transit--circular, and other astronomical instruments, a particular account of the Earl of Rosse's large telescopes, and other topics connected with astronomy
Dick, Thomas
672 Gutenberg downloadsen2017Difficulty 69 (Academic)Thunder and Lightning
Flammarion, Camille
666 Gutenberg downloadsen2013Difficulty 49 (College)Sound
Tyndall, John
664 Gutenberg downloadsen2017Difficulty 72 (Expert)Popular scientific lectures
Mach, Ernst
663 Gutenberg downloadsen2012Difficulty 53 (Graduate)Scientific American, Volume 40, No. 13, March 29, 1879 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures
Various
662 Gutenberg downloadsen2006Difficulty 56 (Graduate)On Molecular and Microscopic Science, Volume 1 (of 2)
Somerville, Mary
659 Gutenberg downloadsen2017Difficulty 61 (Academic)A century of science in America : $b with special reference to the American Journal of Science, 1818-1918
Unknown
656 Gutenberg downloadsen2024Difficulty 60 (Graduate)James Clerk Maxwell and Modern Physics
Glazebrook, Richard
654 Gutenberg downloadsen2021Difficulty 52 (Graduate)Memoirs of the life of David Rittenhouse, LLD. F.R.S., late president of the American Philosophical Society, &c. : $b interspersed with various notices of many distinguished men : with an appendix, containing sundry philosophical and other papers, most of which have not hitherto been published
Barton, William
654 Gutenberg downloadsen2023Difficulty 68 (Academic)A Historical Account of Useful Inventions and Scientific Discoveries Being a manual of instruction and entertainment.
Grant, George
644 Gutenberg downloadsen2016Difficulty 62 (Academic)Conversations on the Plurality of Worlds
Fontenelle, M. de (Bernard Le Bovier)
639 Gutenberg downloadsen2021Difficulty 62 (Academic)How It Flies; or, The Conquest of the Air The Story of Man's Endeavors to Fly and of the Inventions by Which He Has Succeeded
Ferris, Richard
639 Gutenberg downloadsen2017Difficulty 51 (Graduate)The Chautauquan, Vol. 05, October 1884, No. 1
Chautauqua Literary and Scientific Circle & Chautauqua Institution
639 Gutenberg downloadsen2017Difficulty 48 (College)The Steam Engine Explained and Illustrated (Seventh Edition) With an Account of Its Invention and Progressive Improvement, and Its Application to Navigation and Railways; Including Also a Memoir of Watt
Lardner, Dionysius
638 Gutenberg downloadsen2013Difficulty 76 (Expert)A History of Science — Volume 5
Williams, Henry Smith & Williams, Edward Huntington
637 Gutenberg downloadsen2009Difficulty 57 (Graduate)Aether and Gravitation
Hooper, William George
636 Gutenberg downloadsen2008Difficulty 55 (Graduate)International Language and Science Considerations on the Introduction of an International Language into Science
Pfaundler von Hadermur, Leopold & Couturat, Louis & Jespersen, Otto & Lorenz, Richard & Ostwald, Wilhelm
635 Gutenberg downloadsen2017Difficulty 65 (Academic)Steam, Steel and Electricity
Steele, James W.
635 Gutenberg downloadsen2005Difficulty 50 (College)On Laboratory Arts
Threlfall, Richard
634 Gutenberg downloadsen2007Difficulty 54 (Graduate)On the Connexion of the Physical Sciences
Somerville, Mary
634 Gutenberg downloadsen2016Difficulty 89 (Specialist)Leonardo da Vinci, Pathfinder of Science
Gillette, Henry S.
631 Gutenberg downloadsen2017Difficulty 51 (Graduate)Scientific American, Volume XXXVI., No. 8, February 24, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures.
Various
631 Gutenberg downloadsen2006Difficulty 54 (Graduate)Pioneers of Science
Lodge, Oliver, Sir
630 Gutenberg downloadsen2009Difficulty 51 (Graduate)The Ways of the Planets
Martin, Martha Evans
630 Gutenberg downloadsen2016Difficulty 53 (Graduate)McClure's Magazine, Vol. 6, No. 5, April, 1896
Various
625 Gutenberg downloadsen2005Difficulty 51 (Graduate)Die Naturwissenschaften in ihrer Entwicklung und in ihrem Zusammenhange, II. Band Von Galilei bis zur Mitte des XVIII. Jahrhunderts
Dannemann, Friedrich
622 Gutenberg downloadsde2017The Story of the Living Machine A Review of the Conclusions of Modern Biology in Regard to the Mechanism Which Controls the Phenomena of Living Activity
Conn, H. W. (Herbert William)
622 Gutenberg downloadsen2005Difficulty 58 (Graduate)Pumps and Hydraulics, Part 1 (of 2)
Hawkins, N. (Nehemiah)
621 Gutenberg downloadsen2018Difficulty 50 (College)Natural Philosophy
Ostwald, Wilhelm
619 Gutenberg downloadsen2013Difficulty 60 (Graduate)Tratado das Cores Que consta de tres partes: analytica, synthetica, hermeneutica
Sampaio, Diogo de Carvalho e
618 Gutenberg downloadspt2010Electricity and Magnetism
Gray, Elisha
617 Gutenberg downloadsen2010Difficulty 52 (Graduate)Letters on Astronomy in which the Elements of the Science are Familiarly Explained in Connection with Biographical Sketches of the Most Eminent Astronomers
Olmsted, Denison
613 Gutenberg downloadsen2012Difficulty 59 (Graduate)The Splash of a Drop
Worthington, A. M. (Arthur Mason)
612 Gutenberg downloadsen2008Difficulty 52 (Graduate)Lightning Conductors: Their History, Nature, and Mode of Application
Anderson, Richard, F.C.S.
610 Gutenberg downloadsen2017Difficulty 58 (Graduate)Worlds Within Worlds: The Story of Nuclear Energy, Volume 1 (of 3) Atomic Weights; Energy; Electricity
Asimov, Isaac
610 Gutenberg downloadsen2015Difficulty 57 (Graduate)From Newton to Einstein: Changing Conceptions of the Universe
Harrow, Benjamin
609 Gutenberg downloadsen2019Difficulty 52 (Graduate)Kepler
Bryant, Walter W. (Walter William)
608 Gutenberg downloadsen2004Difficulty 65 (Academic)The Quarterly Journal of Science, Literature and the Arts, July-December, 1827
Various
608 Gutenberg downloadsen2014Difficulty 59 (Graduate)Miscellanea Curiosa, Vol. 1 Containing a collection of some of the principal phaenomena in nature, accounted for by the greatest philosophers of this age
Unknown
607 Gutenberg downloadsen2015Difficulty 61 (Academic)The Einstein Theory of Relativity: A Concise Statement
Lorentz, H. A. (Hendrik Antoon)
607 Gutenberg downloadsen2004Difficulty 63 (Academic)Every-day Science: Volume 6. The Conquest of Nature
Williams, Henry Smith & Williams, Edward Huntington
606 Gutenberg downloadsen2013Difficulty 53 (Graduate)Famous Men of Science
Bolton, Sarah Knowles
605 Gutenberg downloadsen2011Difficulty 54 (Graduate)The Chautauquan, Vol. 04, October 1883
Chautauqua Literary and Scientific Circle & Chautauqua Institution
605 Gutenberg downloadsen2016Difficulty 50 (College)Astronomical Myths: Based on Flammarions's "History of the Heavens"
Blake, J. F. (John Frederick) & Flammarion, Camille
602 Gutenberg downloadsen2011Difficulty 57 (Graduate)Early American Scientific Instruments and Their Makers
Bedini, Silvio A.
602 Gutenberg downloadsen2012Difficulty 70 (Academic)On the various forces of nature and their relations to each other
Faraday, Michael
602 Gutenberg downloadsen2016Difficulty 50 (College)Sir William Herschel: His Life and Works
Holden, Edward S. (Edward Singleton)
601 Gutenberg downloadsen2009Difficulty 56 (Graduate)Lives of the electricians : $b Professors Tyndall, Wheatstone, and Morse.
Jeans, William T.
600 Gutenberg downloadsen2024Difficulty 70 (Academic)A Study of Splashes
Worthington, A. M. (Arthur Mason)
599 Gutenberg downloadsen2012Difficulty 56 (Graduate)Science in Short Chapters
Williams, W. Mattieu (William Mattieu)
598 Gutenberg downloadsen2017Difficulty 69 (Academic)Memoirs of the Distinguished Men of Science of Great Britain Living in the Years 1807-8
Walker, William
597 Gutenberg downloadsen2018Difficulty 61 (Academic)Scientific American Supplement, No. 446, July 19, 1884
Various
594 Gutenberg downloadsen2004Difficulty 55 (Graduate)Eminent literary and scientific men of Italy, Spain, and Portugal. Vol. 2 (of 3)
Montgomery, James & Shelley, Mary Wollstonecraft
592 Gutenberg downloadsen2021Difficulty 69 (Academic)Scientific American Supplement, No. 598, June 18, 1887
Various
591 Gutenberg downloadsen2004Difficulty 50 (College)Things a Boy Should Know About Electricity Second Edition
St. John, Thomas M. (Thomas Matthew)
591 Gutenberg downloadsen2014Difficulty 48 (College)The story of the sun, moon, and stars
Giberne, Agnes
590 Gutenberg downloadsen2025Difficulty 47 (College)The laws of contrast of colour : $b and their application to the arts of painting, decoration of buildings, mosaic work, tapestry and carpet weaving, calico printing, dress, paper staining, printing, military clothing, illumination, landscape, and flower gardening, &c.
Chevreul, M. E. (Michel Eugène)
589 Gutenberg downloadsen2025Difficulty 64 (Academic)The Natural Philosophy of William Gilbert and His Predecessors
King, W. James (William James)
588 Gutenberg downloadsen2010Difficulty 61 (Academic)Astronomy: The Science of the Heavenly Bodies
Todd, David P. (David Peck)
587 Gutenberg downloadsen2012Difficulty 61 (Academic)Scientific American Supplement, No. 795, March 28, 1891
Various
587 Gutenberg downloadsen2004Difficulty 62 (Academic)Scientific American Supplement, No. 586, March 26, 1887
Various
585 Gutenberg downloadsen2004Difficulty 51 (Graduate)Voyage to Jupiter
Morrison, David & Samz, Jane
583 Gutenberg downloadsen2019Difficulty 64 (Academic)Scientific American, Volume 22, No. 1, January 1, 1870 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures.
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582 Gutenberg downloadsen2005Difficulty 59 (Graduate)Scientific American Supplement, No. 299, September 24, 1881
Various
580 Gutenberg downloadsen2005Difficulty 60 (Graduate)Scientific American Supplement, No. 520, December 19, 1885
Various
578 Gutenberg downloadsen2004Difficulty 56 (Graduate)Development of Gravity Pendulums in the 19th Century Contributions from the Museum of History and Technology, Papers 34-44 On Science and Technology, Smithsonian Institution, 1966
Lenzen, Victor F. (Victor Fritz) & Multhauf, Robert P.
577 Gutenberg downloadsen2011Difficulty 66 (Academic)Five of Maxwell's Papers
Maxwell, James Clerk
577 Gutenberg downloadsen2004Difficulty 63 (Academic)The Mechanism of Life
Leduc, Stéphane
577 Gutenberg downloadsen2010Difficulty 63 (Academic)Practical Hand Book of Gas, Oil and Steam Engines Stationary, Marine, Traction; Gas Burners, Oil Burners, Etc.; Farm, Traction, Automobile, Locomotive; A simple, practical and comprehensive book on the construction, operation and repair of all kinds of engines. Dealing with the various parts in detail and the various types of engines and also the use of different kinds of fuel.
Rathbun, John B.
576 Gutenberg downloadsen2018Difficulty 71 (Expert)The Earliest Electromagnetic Instruments
Chipman, Robert A.
576 Gutenberg downloadsen2010Difficulty 77 (Expert)Astronomy Explained Upon Sir Isaac Newton's Principles And made easy to those who have not studied mathematics
Ferguson, James
575 Gutenberg downloadsen2019Difficulty 52 (Graduate)Scientific American Supplement, No. 365, December 30, 1882
Various
572 Gutenberg downloadsen2006Difficulty 57 (Graduate)The Story of Electricity
Munro, John
571 Gutenberg downloadsen2003Difficulty 57 (Graduate)Astronomy in a nutshell : $b The chief facts and principles explained in popular language for the general reader and for schools
Serviss, Garrett Putman
570 Gutenberg downloadsen2023Difficulty 60 (Graduate)Icarus : $b or, The future of science
Russell, Bertrand
570 Gutenberg downloadsen2021Difficulty 61 (Academic)Scientific American Supplement, No. 288, July 9, 1881
Various
570 Gutenberg downloadsen2005Difficulty 58 (Graduate)The art of glass-blowing : $b or Plain instructions for making the chemical and philosophical instruments which are formed of glass
Danger, T.-P.
567 Gutenberg downloadsen2017Difficulty 63 (Academic)夢溪筆談, Volume 07-10
Shen, Kuo
567 Gutenberg downloadszh2005Parlour Magic
Unknown
566 Gutenberg downloadsen2015Difficulty 100 (Quantum Electrodynamics)The Herschels and Modern Astronomy
Clerke, Agnes M. (Agnes Mary)
565 Gutenberg downloadsen2021Difficulty 55 (Graduate)Colour Measurement and Mixture
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562 Gutenberg downloadsen2012Difficulty 55 (Graduate)Easy lessons in Einstein : $b A discussion of the more intelligible features of the theory of relativity
Slosson, Edwin E. (Edwin Emery)
562 Gutenberg downloadsen2025Difficulty 50 (College)Electricity
McCormick, W. H. (William Henry)
560 Gutenberg downloadsen2023Difficulty 56 (Graduate)The First Airplane Diesel Engine: Packard Model DR-980 of 1928
Meyer, Robert B.
559 Gutenberg downloadsen2010Difficulty 58 (Graduate)The Universe a Vast Electric Organism
Warder, Geo. W. (George Woodward)
559 Gutenberg downloadsen2011Difficulty 59 (Graduate)Waves and ripples in water, air, and æther : $b Being a course of Christmas lectures delivered at the Royal Institution of Great Britain
Fleming, J. A. (John Ambrose), Sir
559 Gutenberg downloadsen2023Difficulty 61 (Academic)Scientific American Supplement, No. 481, March 21, 1885
Various
557 Gutenberg downloadsen2004Difficulty 55 (Graduate)The Heavens Above: A Popular Handbook of Astronomy
Gillet, J. A. (Joseph Anthony) & Rolfe, W. J. (William James)
557 Gutenberg downloadsen2019Difficulty 51 (Graduate)The Letter of Petrus Peregrinus on the Magnet, A.D. 1269
Pierre, de Maricourt, active 13th century
554 Gutenberg downloadsen2015Difficulty 62 (Academic)A-B-C of Electricity
Meadowcroft, Wm. H. (William Henry)
550 Gutenberg downloadsen2014Difficulty 51 (Graduate)Scientific American Supplement, No. 595, May 28, 1887
Various
550 Gutenberg downloadsen2004Difficulty 52 (Graduate)Scientific American Supplement, No. 787, January 31, 1891
Various
548 Gutenberg downloadsen2004Difficulty 53 (Graduate)Worlds in the making: The evolution of the universe
Arrhenius, Svante
547 Gutenberg downloadsen2022Difficulty 53 (Graduate)Mechanics of the Household A Course of Study Devoted to Domestic Machinery and Household Mechanical Appliances
Keene, E. S. (Edward Spencer)
546 Gutenberg downloadsen2016Difficulty 65 (Academic)Astronomy and General Physics Considered with Reference to Natural Theology
Whewell, William
545 Gutenberg downloadsen2021Difficulty 57 (Graduate)Curiosities of Science, Past and Present A Book for Old and Young
Timbs, John
545 Gutenberg downloadsen2015Difficulty 66 (Academic)Scientific American magazine Vol 2. No. 3 Oct 10 1846 The Advocate of Industry and Journal of Scientific, Mechanical and Other Improvements
Various
542 Gutenberg downloadsen2009Difficulty 49 (College)Endless Amusement A Collection of Nearly 400 Entertaining Experiments in Various Branches of Science; Including Acoustics, Electricity, Magnetism, Arithmetic, Hydraulics, Mechanics, Chemistry, Hydrostatics, Optics; Wonders of the Air-Pump; All the Popular Tricks and Changes of the Cards, &c., &c. to Which is Added, a Complete System of Pyrotechny; Or, the Art of Making Fire-works.
Unknown
541 Gutenberg downloadsen2010Difficulty 100 (Quantum Electrodynamics)Astronomy with an Opera-glass A Popular Introduction to the Study of the Starry Heavens with the Simplest of Optical Instruments
Serviss, Garrett Putman
539 Gutenberg downloadsen2011Difficulty 59 (Graduate)Stargazing: Past and Present
Lockyer, Norman, Sir
539 Gutenberg downloadsen2016Difficulty 50 (College)The Source and Mode of Solar Energy Throughout the Universe
Heysinger, Isaac W. (Isaac Winter)
539 Gutenberg downloadsen2018Difficulty 66 (Academic)The calculating engine
Babbage, Charles
538 Gutenberg downloadsen2023Difficulty 71 (Expert)Auroræ: Their Characters and Spectra
Capron, J. Rand
537 Gutenberg downloadsen2017Difficulty 52 (Graduate)Scientific American Supplement, No. 363, December 16, 1882
Various
537 Gutenberg downloadsen2005Difficulty 62 (Academic)The celestial worlds discover'd : $b or, conjectures concerning the inhabitants, plants and productions of the worlds in the planets
Huygens, Christiaan
536 Gutenberg downloadsen2023Difficulty 57 (Graduate)Outlines of a mechanical theory of storms : $b containing the true law of lunar influence, with practical instructions to the navigator, to enable him approximately to calculate the coming changes of the wind and weather, for any given day, and for any part of the ocean
Bassnett, Thomas
533 Gutenberg downloadsen2006Difficulty 68 (Academic)The Advance of Science in the Last Half-Century
Huxley, Thomas Henry
533 Gutenberg downloadsen2005Difficulty 73 (Expert)Voyager Encounters Jupiter
United States. National Aeronautics and Space Administration
533 Gutenberg downloadsen2017Difficulty 64 (Academic)Appletons' Popular Science Monthly, December 1899 Vol. LVI, November, 1899 to April, 1900
Various
532 Gutenberg downloadsen2014Difficulty 72 (Expert)Lord Kelvin: An account of his scientific life and work
Gray, Andrew
532 Gutenberg downloadsen2012Difficulty 66 (Academic)Scientific American Supplement, No. 711, August 17, 1889
Various
532 Gutenberg downloadsen2005Difficulty 61 (Academic)A New Era of Thought
Hinton, Charles Howard
531 Gutenberg downloadsen2019Difficulty 53 (Graduate)Philosophical transactions, Vol. L. Part II. For the year 1758. Giving some account of the present undertakings, studies, and labours, of the ingenious, in many considerable parts of the world.
Various & Royal Society (Great Britain)
531 Gutenberg downloadsen2022Difficulty 49 (College)Signalling across space without wires being a description of the work of Hertz & his successors
Lodge, Oliver, Sir
531 Gutenberg downloadsen2022Difficulty 60 (Graduate)The Destinies of the Stars
Arrhenius, Svante
531 Gutenberg downloadsen2018Difficulty 54 (Graduate)Through Magic Glasses and Other Lectures A Sequel to The Fairyland of Science
Buckley, Arabella B. (Arabella Burton)
531 Gutenberg downloadsen2011Difficulty 58 (Graduate)The Library of Work and Play: Electricity and Its Everyday Uses
Woodhull, John F. (John Francis)
530 Gutenberg downloadsen2014Difficulty 48 (College)Mariner Mission to Venus
Jet Propulsion Laboratory (U.S.)
528 Gutenberg downloadsen2017Difficulty 64 (Academic)Memoir and Correspondence of Caroline Herschel
Herschel, John, Mrs.
528 Gutenberg downloadsen2016Difficulty 60 (Graduate)The Relations Between Religion and Science Eight Lectures Preached Before the University of Oxford in the Year 1884
Temple, Frederick
528 Gutenberg downloadsen2005Difficulty 52 (Graduate)Scientific American Supplement No. 819, September 12, 1891
Various
525 Gutenberg downloadsen2005Difficulty 59 (Graduate)Scientific American Supplement, No. 384, May 12, 1883
Various
525 Gutenberg downloadsen2005Difficulty 46 (College)Invention and Discovery: Curious Facts and Characteristic Sketches
Anonymous
523 Gutenberg downloadsen2014Difficulty 60 (Graduate)Light Science for Leisure Hours A series of familiar essays on scientific subjects, natural phenomena, &c.
Proctor, Richard A. (Richard Anthony)
523 Gutenberg downloadsen2017Difficulty 60 (Graduate)The Chautauquan, Vol. 04, November 1883 A Monthly Magazine Devoted to the Promotion of True Culture. Organ of the Chautauqua Literary and Scientific Circle.
Chautauqua Literary and Scientific Circle & Chautauqua Institution
522 Gutenberg downloadsen2016Difficulty 56 (Graduate)Time and Tide: A Romance of the Moon
Ball, Robert S. (Robert Stawell)
522 Gutenberg downloadsen2008Difficulty 52 (Graduate)The kaleidoscope : $b its history, theory and construction. With its application to the fine and useful arts
Brewster, David
520 Gutenberg downloadsen2024Difficulty 62 (Academic)Half Hours With Modern Scientists: Lectures and Essays
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519 Gutenberg downloadsen2021Difficulty 66 (Academic)Scientific American Supplement, No. 601, July 9, 1887
Various
518 Gutenberg downloadsen2004Difficulty 53 (Graduate)Essays on the Microscope Containing a Practical Description of the Most Improved Microscopes, a General History of Insects, etc., etc.
Adams, George
517 Gutenberg downloadsen2020Difficulty 62 (Academic)Flowers of the Sky
Proctor, Richard A. (Richard Anthony)
516 Gutenberg downloadsen2017Difficulty 59 (Graduate)Scientific American Supplement, No. 492, June 6, 1885
Various
516 Gutenberg downloadsen2004Difficulty 53 (Graduate)An Account of the Late Improvements in Galvanism With a Series of Curious and Interesting Experiments Performed Before the Commissioners of the French National Institute, and Repeated Lately in the Anatomical Theatres of London
Aldini, Giovanni
515 Gutenberg downloadsen2018Difficulty 64 (Academic)LRL Accelerators, The 184-Inch Synchrocyclotron
Lawrence Radiation Laboratory
514 Gutenberg downloadsen2010Difficulty 58 (Graduate)Scientific American Supplement, No. 483, April 4, 1885
Various
514 Gutenberg downloadsen2004Difficulty 55 (Graduate)Sir Christopher Wren : $b Scientist, scholar and architect
Weaver, Lawrence
513 Gutenberg downloadsen2023Difficulty 52 (Graduate)Scientific American Supplement, No. 458, October 11, 1884
Various
511 Gutenberg downloadsen2004Difficulty 58 (Graduate)Radio-Active Substances
Curie, Marie
510 Gutenberg downloadsen2019Difficulty 63 (Academic)Worlds Within Worlds: The Story of Nuclear Energy, Volume 3 (of 3) Nuclear Fission; Nuclear Fusion; Beyond Fusion
Asimov, Isaac
508 Gutenberg downloadsen2015Difficulty 62 (Academic)Daedalus : $b or, Science and the future
Haldane, J. B. S. (John Burdon Sanderson)
507 Gutenberg downloadsen2023Difficulty 58 (Graduate)Man's Place in the Universe A Study of the Results of Scientific Research in Relation to the Unity or Plurality of Worlds, 3rd Edition
Wallace, Alfred Russel
507 Gutenberg downloadsen2012Difficulty 71 (Expert)Philosophy in Sport Made Science in Earnest Being an Attempt to Illustrate the First Principles of Natural Philosophy by the Aid of Popular Toys and Sports
Paris, John Ayrton
507 Gutenberg downloadsen2014Difficulty 69 (Academic)The atom and the Bohr theory of its structure : $b an elementary presentation
Holst, Helge & Kramers, Hendrik Anthony
507 Gutenberg downloadsen2023Difficulty 65 (Academic)The Scientific Basis of National Progress, Including that of Morality
Gore, George
506 Gutenberg downloadsen2010Difficulty 70 (Academic)Rough Ways Made Smooth: A series of familiar essays on scientific subjects
Proctor, Richard A. (Richard Anthony)
505 Gutenberg downloadsen2017Difficulty 63 (Academic)Scientific American Supplement, No. 275, April 9, 1881
Various
504 Gutenberg downloadsen2005Difficulty 57 (Graduate)The Chautauquan, Vol. 05, June 1885, No. 9
Chautauqua Literary and Scientific Circle & Chautauqua Institution
504 Gutenberg downloadsen2017Difficulty 53 (Graduate)Star-land: Being Talks With Young People About the Wonders of the Heavens
Ball, Robert S. (Robert Stawell)
503 Gutenberg downloadsen2019Difficulty 46 (College)Scientific American Supplement, No. 286, June 25, 1881
Various
502 Gutenberg downloadsen2005Difficulty 53 (Graduate)Scientific American Supplement, No. 717, September 28, 1889
Various
501 Gutenberg downloadsen2006Difficulty 53 (Graduate)Time and Its Measurement
Arthur, James
500 Gutenberg downloadsen2014Difficulty 50 (College)The Wonders of Optics
Marion, Fulgence
499 Gutenberg downloadsen2021Difficulty 51 (Graduate)Die Naturwissenschaften in ihrer Entwicklung und in ihrem Zusammenhange, IV. Band Das Emporblühen der modernen Naturwissenschaften seit der Entdeckung des Energieprinzips
Dannemann, Friedrich
498 Gutenberg downloadsde2019Scientific American Supplement, No. 303, October 22, 1881
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498 Gutenberg downloadsen2005Difficulty 52 (Graduate)Scientific American Supplement, No. 455, September 20, 1884
Various
498 Gutenberg downloadsen2004Difficulty 57 (Graduate)Heroes of Science: Physicists
Garnett, William
496 Gutenberg downloadsen2012Difficulty 61 (Academic)Scientific American Supplement, No. 388, June 9, 1883
Various
496 Gutenberg downloadsen2005Difficulty 56 (Graduate)Scientific American Supplement, No. 611, September 17, 1887
Various
496 Gutenberg downloadsen2005Difficulty 50 (College)Spinning Tops The "Operatives' Lecture" of the British Association Meeting at Leeds, 6th September, 1890
Perry, John
496 Gutenberg downloadsen2010Difficulty 56 (Graduate)Ancient and Modern Physics
Willson, Thomas Edgar
495 Gutenberg downloadsen2004Difficulty 53 (Graduate)Cours de philosophie positive. (2/6)
Comte, Auguste
495 Gutenberg downloadsfr2010Friction, Lubrication and the Lubricants in Horology
Lewis, W. T. (William T.)
495 Gutenberg downloadsen2011Difficulty 55 (Graduate)Scientific American Supplement No. 822, October 3, 1891
Various
495 Gutenberg downloadsen2005Difficulty 55 (Graduate)The uses of astronomy : $b An oration delivered at Albany on the 28th of July, 1856
Everett, Edward
494 Gutenberg downloadsen2005Difficulty 60 (Graduate)The Plurality of Worlds
Whewell, William
492 Gutenberg downloadsen2011Difficulty 58 (Graduate)Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained
Marcet, Mrs. (Jane Haldimand) & Jones, Thomas P.
491 Gutenberg downloadsen2011Difficulty 50 (College)Scientific American, Volume 56, No. 9, February 26, 1887
Various
491 Gutenberg downloadsen2015Difficulty 54 (Graduate)Meteoric astronomy: A treatise on shooting-stars, fire-balls, and aerolites
Kirkwood, Daniel
490 Gutenberg downloadsen2013Difficulty 59 (Graduate)The Copernicus of Antiquity (Aristarchus of Samos)
Heath, Thomas Little, Sir
490 Gutenberg downloadsen2018Difficulty 59 (Graduate)Letters on Natural Magic; Addressed to Sir Walter Scott, Bart.
Brewster, David
488 Gutenberg downloadsen2016Difficulty 80 (Expert)Scientific American Supplement, No. 315, January 14, 1882
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487 Gutenberg downloadsen2006Difficulty 63 (Academic)Scientific American Supplement, No. 530, February 27, 1886
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487 Gutenberg downloadsen2004Difficulty 58 (Graduate)The Academic Gregories
Stewart, Agnes Grainger
487 Gutenberg downloadsen2016Difficulty 59 (Graduate)Scientific American Supplement, No. 470, January 3, 1885
Various
486 Gutenberg downloadsen2004Difficulty 52 (Graduate)The New Heavens
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Trouvelot, E. L. (Etienne Leopold)
485 Gutenberg downloadsen2022Difficulty 61 (Academic)Joseph Smith as Scientist: A Contribution to Mormon Philosophy
Widtsoe, John Andreas
484 Gutenberg downloadsen2010Difficulty 57 (Graduate)The Evolution of Worlds
Lowell, Percival
484 Gutenberg downloadsen2020Difficulty 55 (Graduate)Hawkins Electrical Guide v. 03 (of 10) Questions, Answers, & Illustrations, A progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications
Hawkins, N. (Nehemiah)
483 Gutenberg downloadsen2015Difficulty 68 (Academic)International Weekly Miscellany of Literature, Art and Science — Volume 1, No. 2, July 8, 1850
Various
483 Gutenberg downloadsen2004Difficulty 59 (Graduate)Watchers of the Sky
Noyes, Alfred
483 Gutenberg downloadsen2004Difficulty 45 (College)Catechism of the locomotive
Forney, Matthias N. (Matthias Nace) & Kosak, Georg
482 Gutenberg downloadsen2025Difficulty 51 (Graduate)Scientific American Supplement, No. 803, May 23, 1891
Various
482 Gutenberg downloadsen2004Difficulty 52 (Graduate)A Treatise on Mechanics
Kater, Henry & Lardner, Dionysius
481 Gutenberg downloadsen2021Difficulty 60 (Graduate)Harper's New Monthly Magazine, Volume 2, No. 12, May, 1851.
Various
481 Gutenberg downloadsen2010Difficulty 55 (Graduate)Scientific American Supplement, No. 392, July 7, 1883
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481 Gutenberg downloadsen2005Difficulty 63 (Academic)An original theory or new hypothesis of the universe $b founded upon the laws of nature, and solving by mathematical principles the general phænomena of the visible creation; and particularly the via lactea ...
Wright, Thomas
478 Gutenberg downloadsen2023Difficulty 57 (Graduate)The Mirror of Literature, Amusement, and Instruction. Volume 14, No. 404, December 12, 1829
Various
477 Gutenberg downloadsen2004Difficulty 54 (Graduate)The Study of Elementary Electricity and Magnetism by Experiment Containing Two Hundred Experiments Performed with Simple, Home-made Apparatus
St. John, Thomas M. (Thomas Matthew)
477 Gutenberg downloadsen2015Difficulty 53 (Graduate)The Chautauquan, Vol. 05, April 1885
Chautauqua Literary and Scientific Circle & Chautauqua Institution
476 Gutenberg downloadsen2017Difficulty 54 (Graduate)Leçons de cosmographie à l'usage des lycées et collèges et de tous les établissements d'instruction publique
Guilmin, A. (Adrien)
475 Gutenberg downloadsfr2007Scientific American Supplement, No. 433, April 19, 1884
Various
475 Gutenberg downloadsen2005Difficulty 66 (Academic)Aeroplanes
Zerbe, James Slough
474 Gutenberg downloadsen1998Difficulty 46 (College)Our Nuclear Future: Facts, Dangers and Opportunities
Teller, Edward & Latter, Albert L.
474 Gutenberg downloadsen2021Difficulty 53 (Graduate)Appletons' Popular Science Monthly, July 1899 Volume LV, No. 3, July 1899
Various
473 Gutenberg downloadsen2014Difficulty 58 (Graduate)On the Construction of a Silvered Glass Telescope Fifteen and a half inches in aperture, and its use in celestial photography
Draper, Henry
470 Gutenberg downloadsen2016Difficulty 61 (Academic)The Pneumatic Despatch Tube System of the Batcheller Pneumatic Tube Co. Also, Facts and General Information Relating to Pneumatic Despatch Tubes
Batcheller, Birney C. (Birney Clark)
468 Gutenberg downloadsen2020Difficulty 58 (Graduate)Artificial and Natural Flight
Maxim, Hiram S. (Hiram Stevens)
467 Gutenberg downloadsen2014Difficulty 53 (Graduate)On a Dynamical Top, for exhibiting the phenomena of the motion of a system of invariable form about a fixed point, with some suggestions as to the Earth's motion
Maxwell, James Clerk
467 Gutenberg downloadsen2004Difficulty 61 (Academic)Scientific American Supplement, No. 385, May 19, 1883
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467 Gutenberg downloadsen2005Difficulty 58 (Graduate)Scientific American Supplement, No. 441, June 14, 1884.
Various
467 Gutenberg downloadsen2005Difficulty 56 (Graduate)Flying Machines Today
Ennis, William D. (William Duane)
466 Gutenberg downloadsen2016Difficulty 61 (Academic)Scientific American Supplement, No. 417, December 29, 1883
Various
466 Gutenberg downloadsen2005Difficulty 65 (Academic)Stars and atoms
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466 Gutenberg downloadsen2024Difficulty 54 (Graduate)Astronomical Discovery
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462 Gutenberg downloadsen2010Difficulty 57 (Graduate)Popular Books on Natural Science For Practical Use in Every Household, for Readers of All Classes
Bernstein, Aaron David
462 Gutenberg downloadsen2011Difficulty 50 (College)The Ether of Space
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461 Gutenberg downloadsen2012Difficulty 60 (Graduate)Thomas Hariot, the Mathematician, the Philosopher and the Scholar
Stevens, Henry
460 Gutenberg downloadsen2004Difficulty 63 (Academic)Boys' second book of inventions
Baker, Ray Stannard
459 Gutenberg downloadsen2013Difficulty 57 (Graduate)Graham's Magazine, Vol. XX, No. 6, June 1842
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458 Gutenberg downloadsen2022Difficulty 48 (College)Marvels of Modern Science
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458 Gutenberg downloadsen2004Difficulty 51 (Graduate)Practical Talks by an Astronomer
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458 Gutenberg downloadsen2016Difficulty 56 (Graduate)Scientific American Supplement, No. 623, December 10, 1887
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457 Gutenberg downloadsen2005Difficulty 60 (Graduate)Microscopes and Accessory Apparatus: Catalogue No. 40
Leitz, Ernst
456 Gutenberg downloadsen2011Difficulty 61 (Academic)Pioneer Saturn Encounter
United States. National Aeronautics and Space Administration
456 Gutenberg downloadsen2017Difficulty 62 (Academic)Stories of Starland
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452 Gutenberg downloadsen2017Difficulty 36 (High School)Appletons' Popular Science Monthly, February 1900 Vol. 56, November, 1899 to April, 1900
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451 Gutenberg downloadsen2014Difficulty 62 (Academic)Scientific American Supplement, No. 421, January 26, 1884
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451 Gutenberg downloadsen2005Difficulty 56 (Graduate)Comet Lore: Halley's Comet in History and Astronomy
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450 Gutenberg downloadsen2021Difficulty 51 (Graduate)Time and Clocks: A Description of Ancient and Modern Methods of Measuring Time
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449 Gutenberg downloadsen2015Difficulty 59 (Graduate)The logic of modern physics
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449 Gutenberg downloadsen2023Difficulty 70 (Academic)Voyager 1 Encounters Saturn
United States. National Aeronautics and Space Administration
448 Gutenberg downloadsen2017Difficulty 62 (Academic)Army Pulse Radiation Facility
U.S. Army Ballistic Research Laboratory
446 Gutenberg downloadsen2022Difficulty 62 (Academic)The Moon: A Popular Treatise
Serviss, Garrett Putman
446 Gutenberg downloadsen2021Difficulty 48 (College)Scientific American Supplement, No. 488, May 9, 1885
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443 Gutenberg downloadsen2008Difficulty 50 (College)Hawkins Electrical Guide v. 01 (of 10) Questions, Answers, & Illustrations, A progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications
Hawkins, N. (Nehemiah)
442 Gutenberg downloadsen2011Difficulty 66 (Academic)A Brief History of Element Discovery, Synthesis, and Analysis
Watson, Glen W.
441 Gutenberg downloadsen2010Difficulty 65 (Academic)Careers in Atomic Energy
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441 Gutenberg downloadsen2013Difficulty 68 (Academic)Telescopic Work for Starlight Evenings
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441 Gutenberg downloadsen2018Difficulty 58 (Graduate)Scientific American Supplement, No. 829, November 21, 1891
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440 Gutenberg downloadsen2005Difficulty 63 (Academic)The Popular Science Monthly, September, 1900 Vol. 57, May, 1900 to October, 1900
Various
440 Gutenberg downloadsen2014Difficulty 77 (Expert)Scientific American Supplement, No. 430, March 29, 1884
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439 Gutenberg downloadsen2005Difficulty 59 (Graduate)La terre et la lune: forme extérieure et structure interne
Puiseux, P. (Pierre Henri)
438 Gutenberg downloadsfr2009Outlines of Creation
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437 Gutenberg downloadsen2015Difficulty 68 (Academic)How to Do Mechanical Tricks Containing Complete Instruction for Performing Over Sixty Ingenious Mechanical Tricks
Anderson, A., active 1894-1902
436 Gutenberg downloadsen2018Difficulty 44 (College)The universe around us
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436 Gutenberg downloadsen2025Difficulty 62 (Academic)The Royal Observatory, Greenwich: A Glance at Its History and Work
Maunder, E. Walter (Edward Walter)
435 Gutenberg downloadsen2013Difficulty 60 (Graduate)Appletons' Popular Science Monthly, April 1900 Vol. 56, Nov. 1899 to April, 1900
Various
434 Gutenberg downloadsen2014Difficulty 60 (Graduate)The New Astronomy
Langley, S. P. (Samuel Pierpont)
434 Gutenberg downloadsen2021Difficulty 48 (College)L'Académie des sciences et les académiciens de 1666 à 1793
Bertrand, Joseph
433 Gutenberg downloadsfr2016Satellite Communications Physics
Unknown
432 Gutenberg downloadsen2020Difficulty 65 (Academic)Science and Medieval Thought The Harveian Oration Delivered Before the Royal College of Physicians, October 18, 1900
Allbutt, T. Clifford (Thomas Clifford)
432 Gutenberg downloadsen2012Difficulty 66 (Academic)New and Original Theories of the Great Physical Forces
Rogers, Henry Raymond
430 Gutenberg downloadsen2008Difficulty 59 (Graduate)Astronomical Instruments and Accessories
William Gaertner and Company
429 Gutenberg downloadsen2008Difficulty 51 (Graduate)Die Welträtsel: Gemeinverständliche Studien über Monistische Philosophie
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429 Gutenberg downloadsde2019New Theories in Astronomy
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429 Gutenberg downloadsen2014Difficulty 63 (Academic)The Miner's Friend; Or, An Engine to Raise Water by Fire
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429 Gutenberg downloadsen2014Difficulty 66 (Academic)The Seven Follies of Science [2nd ed.] A popular account of the most famous scientific impossibilities and the attempts which have been made to solve them. To which is added a small budget of interesting paradoxes, illusions, and marvels
Phin, John
429 Gutenberg downloadsen2011Difficulty 63 (Academic)The Atom and the Ocean
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428 Gutenberg downloadsen2021Difficulty 61 (Academic)Appletons' Popular Science Monthly, January 1900 Vol. 56, November, 1899 to April, 1900
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427 Gutenberg downloadsen2014Difficulty 58 (Graduate)Hertzian Wave Wireless Telegraphy
Fleming, J. A. (John Ambrose), Sir
426 Gutenberg downloadsen2012Difficulty 67 (Academic)The stereoscope : $b its history, theory, and construction, with its application to the fine and useful arts and to education
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426 Gutenberg downloadsen2023Difficulty 59 (Graduate)Scientific American, Vol. XXXIX.—No. 24. [New Series.], December 14, 1878 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures
Various
425 Gutenberg downloadsen2012Difficulty 57 (Graduate)The Popular Science Monthly, October, 1900 Vol. 57, May, 1900 to October, 1900
Various
425 Gutenberg downloadsen2014Difficulty 75 (Expert)The romance of comets
Proctor, Mary
423 Gutenberg downloadsen2025Difficulty 59 (Graduate)The telephone, the microphone & the phonograph
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423 Gutenberg downloadsen2025Difficulty 66 (Academic)Scientific American Supplement, No. 467, December 13, 1884
Various
421 Gutenberg downloadsen2014Difficulty 51 (Graduate)Appletons' Popular Science Monthly, May, 1900 Vol. 57, May, 1900 to October, 1900
Various
420 Gutenberg downloadsen2014Difficulty 60 (Graduate)The Nuclear Ship Savannah First Atomic Merchant Ship, One of the World's Safest Ships
United States. Department of Commerce & United States. Maritime Administration & U.S. Atomic Energy Commission
419 Gutenberg downloadsen2020Difficulty 67 (Academic)The Autobiography of an Electron Wherein the Scientific Ideas of the Present Time Are Explained in an Interesting and Novel Fashion
Gibson, Charles R. (Charles Robert)
418 Gutenberg downloadsen2011Difficulty 50 (College)Little Masterpieces of Science: Invention and Discovery
Unknown
417 Gutenberg downloadsen2009Difficulty 60 (Graduate)The Energy System of Matter: A Deduction from Terrestrial Energy Phenomena
Weir, James, active 1883-1912
417 Gutenberg downloadsen2011Difficulty 67 (Academic)Principles of electricity
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414 Gutenberg downloadsen2025Difficulty 58 (Graduate)First Lessons in Natural Philosophy for Beginners
Martindale, Joseph C. (Joseph Comly)
413 Gutenberg downloadsen2016Difficulty 31 (High School)Langley Memoir on Mechanical Flight, Parts I and II Smithsonian Contributions to Knowledge, Volume 27 Number 3, Publication 1948, 1911
Langley, S. P. (Samuel Pierpont) & Manly, Charles M. (Charles Matthews)
413 Gutenberg downloadsen2015Difficulty 53 (Graduate)Home-made Electrical Apparatus
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412 Gutenberg downloadsen2020Difficulty 46 (College)The Secret of Life, Death and Immortality A startling proposition, with a chapter devoted to mental therapeutics and instructions for self healing
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412 Gutenberg downloadsen2018Difficulty 58 (Graduate)Where Science and Religion Meet
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412 Gutenberg downloadsen2016Difficulty 51 (Graduate)The conservation of energy
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411 Gutenberg downloadsen2022Difficulty 57 (Graduate)Extra-galactic nebulae
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409 Gutenberg downloadsen2022Difficulty 56 (Graduate)Photographs of Nebulæ and Clusters, Made with the Crossley Reflector
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409 Gutenberg downloadsen2011Difficulty 57 (Graduate)The Telephone An Account of the Phenomena of Electricity, Magnetism, and Sound, as Involved in Its Action
Dolbear, A. E. (Amos Emerson)
409 Gutenberg downloadsen2010Difficulty 60 (Graduate)The Mirror of Literature, Amusement, and Instruction. Volume 12, No. 336, October 18, 1828
Various
408 Gutenberg downloadsen2004Difficulty 57 (Graduate)The peaceful atom
Hunt, Bernice Kohn
408 Gutenberg downloadsen2023Difficulty 42 (College)Lightning, Thunder and Lightning Conductors
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407 Gutenberg downloadsen2022Difficulty 62 (Academic)An epitome of electricity & galvanism
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405 Gutenberg downloadsen2024Difficulty 67 (Academic)The Warfare of Science
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405 Gutenberg downloadsen2015Difficulty 55 (Graduate)Airopaidia : $b Containing the narrative of a balloon excursion from Chester, the eighth of September, 1785, taken from minutes made during the voyage; hints on the improvement of balloons ... To which is subjoined, mensuration of heights by the barometer, made plain; with extensive tables. The whole serving as an introduction to aërial navigation.
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404 Gutenberg downloadsen2024Difficulty 50 (College)Henri Poincaré: Biographie, Bibliographie Analytique des Écrits
Lebon, Ernest
404 Gutenberg downloadsfr2010Scientific American, Vol. XXXVII.—No. 2. [New Series.], July 14, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures
Various
404 Gutenberg downloadsen2012Difficulty 60 (Graduate)La Radiologie et La Guerre
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402 Gutenberg downloadsfr2013The Future of Astronomy
Pickering, Edward C. (Edward Charles)
402 Gutenberg downloadsen2005Difficulty 56 (Graduate)Gunshot Roentgenograms A Collection of Roentgenograms Taken in Constantinople During the Turko-Balkan War, 1912-1913, Illustrating Some Gunshot Wounds in the Turkish Army
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401 Gutenberg downloadsen2015Difficulty 53 (Graduate)The Children's Book of Stars
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401 Gutenberg downloadsen2009Difficulty 50 (College)Elémens de la philosophie de Neuton: Mis à la portée de tout le monde
Voltaire
400 Gutenberg downloadsfr2015A Brief Account of Radio-activity
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397 Gutenberg downloadsen2010Difficulty 63 (Academic)Untersuchungen über die radioaktiven Substanzen von Marie Curie, übersetzt und mit Litteratur-Ergänzungen versehen von W. Kaufmann
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395 Gutenberg downloadsde2011Lehrbuch der Physik zum Schulgebrauche.
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394 Gutenberg downloadsde2017The Machinery of the Universe: Mechanical Conceptions of Physical Phenomena
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393 Gutenberg downloadsen2009Difficulty 70 (Academic)Whole Body Counters
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393 Gutenberg downloadsen2015Difficulty 64 (Academic)Archimedes; or, the future of physics
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391 Gutenberg downloadsen2025Difficulty 66 (Academic)The wonders of radium
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390 Gutenberg downloadsen2025Difficulty 60 (Graduate)Atom Mystery [Young Atom Detective]
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387 Gutenberg downloadsen2016Difficulty 36 (High School)Catholic Churchmen in Science [First Series] Sketches of the Lives of Catholic Ecclesiastics Who Were Among the Great Founders in Science
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387 Gutenberg downloadsen2010Difficulty 67 (Academic)The unseen universe : $b or, physical speculations on a future state
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387 Gutenberg downloadsen2025Difficulty 62 (Academic)Atoms in Agriculture: Applications of Nuclear Science to Agriculture (Revised)
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386 Gutenberg downloadsen2015Difficulty 58 (Graduate)Holcomb, Fitz, and Peate: Three 19th Century American Telescope Makers
Unknown
386 Gutenberg downloadsen2019Difficulty 58 (Graduate)Liquid Drops and Globules, Their Formation and Movements Three lectures delivered to popular audiences
Darling, Charles R. (Charles Robert)
386 Gutenberg downloadsen2011Difficulty 52 (Graduate)The Molecular Tactics of a Crystal
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386 Gutenberg downloadsen2017Difficulty 68 (Academic)Standard Measures of United States, Great Britain and France History and actual comparisons. With appendix on introduction of the mètre
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385 Gutenberg downloadsen2017Difficulty 56 (Graduate)God and the World: A Survey of Thought
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384 Gutenberg downloadsen2009Difficulty 60 (Graduate)Chambers's Journal of Popular Literature, Science, and Art, No. 726 November 24, 1877
Various
383 Gutenberg downloadsen2016Difficulty 51 (Graduate)The Second Boys' Book of Model Aeroplanes
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382 Gutenberg downloadsen2020Difficulty 50 (College)The theory of relativity and its influence on scientific thought
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382 Gutenberg downloadsen2023Difficulty 63 (Academic)Lasers
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381 Gutenberg downloadsen2021Difficulty 59 (Graduate)A Project for Flying: In Earnest at Last!
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380 Gutenberg downloadsen2004Difficulty 66 (Academic)X-ray, violet ray, and other rays : $b With their use in modern medicine
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380 Gutenberg downloadsen2025Difficulty 58 (Graduate)Stars of the southern skies
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379 Gutenberg downloadsen2023Difficulty 55 (Graduate)The Veil Lifted: Modern Developments of Spirit Photography
Unknown
379 Gutenberg downloadsen2019Difficulty 57 (Graduate)The Atomic Fingerprint: Neutron Activation Analysis
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378 Gutenberg downloadsen2015Difficulty 59 (Graduate)Die Naturwissenschaften in ihrer Entwicklung und in ihrem Zusammenhange, I. Band Von den Anfängen bis zum Wiederaufleben der Wissenschaften
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377 Gutenberg downloadsde2016Our Atomic World: The Story of Atomic Energy
Craven, C. Jackson (Claude Jackson)
377 Gutenberg downloadsen2021Difficulty 67 (Academic)Encyclopaedia Britannica, 11th Edition, "Conduction, Electric" Volume 6, Slice 8
Various
374 Gutenberg downloadsen2010Difficulty 58 (Graduate)Roentgen Rays and Phenomena of the Anode and Cathode.
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374 Gutenberg downloadsen2020Difficulty 59 (Graduate)Light and Colour Theories, and their relation to light and colour standardization
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373 Gutenberg downloadsen2018Difficulty 58 (Graduate)Atoms, Nature, and Man: Man-made Radioactivity in the Environment
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372 Gutenberg downloadsen2015Difficulty 68 (Academic)Experiments and Observations Relative to the Influence Lately Discovered by M. Galvani and Commonly Called Animal Electricity
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372 Gutenberg downloadsen2014Difficulty 64 (Academic)On-Line Data-Acquisition Systems in Nuclear Physics, 1969
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372 Gutenberg downloadsen2013Difficulty 64 (Academic)Der Vogelflug als Grundlage der Fliegekunst Ein Beitrag zur Systematik der Flugtechnik
Lilienthal, Otto
371 Gutenberg downloadsde2017Short-Title Catalog of Publications and Importations of Scientific and Engineering Books (August 1910)
D. Van Nostrand Company
371 Gutenberg downloadsen2017Difficulty 43 (College)L'A. B. C. de l'aviation: Biplans et monoplans
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370 Gutenberg downloadsfr2010The Popular Science Monthly, July, 1900 Vol. 57, May, 1900 to October, 1900
Various
370 Gutenberg downloadsen2014Difficulty 56 (Graduate)The Study of Astronomy, adapted to the capacities of youth In twelve familiar dialogues, between a tutor and his pupil: explaining the general phænomena of the heavenly bodies, the theory of the tides, &c.
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370 Gutenberg downloadsen2018Difficulty 44 (College)The Microscope
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368 Gutenberg downloadsen2013Difficulty 65 (Academic)The natural and artificial disintegration of the elements An address by Professor Sir Ernest Rutherford
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367 Gutenberg downloadsen2022Difficulty 67 (Academic)How to become a scientist : $b Giving interesting and instructive experiments in chemistry, mechanics, acoustics and pyrotechnics
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366 Gutenberg downloadsen2023Difficulty 54 (Graduate)The hell bomb
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366 Gutenberg downloadsen2025Difficulty 58 (Graduate)The Relations of Science and Religion The Morse Lecture, 1880
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366 Gutenberg downloadsen2011Difficulty 72 (Expert)Radioisotopes in Medicine
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363 Gutenberg downloadsen2015Difficulty 64 (Academic)The Science of the Stars
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363 Gutenberg downloadsen2015Difficulty 48 (College)Von Sonnen und Sonnenstäubchen : $b Kosmische Wanderungen
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363 Gutenberg downloadsde2025The Problem of Manflight
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362 Gutenberg downloadsen2017Difficulty 55 (Graduate)Ueber die schrecklichen Wirkungen des Aufsturzes eines Kometen auf die Erde und über die vor fünftausend Jahren gehabte Erscheinung dieser Art
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362 Gutenberg downloadsde2006Sciências Naturaes Pela Redacção da «Educação Nacional»
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358 Gutenberg downloadspt2006La naissance et l'évanouissement de la matière
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356 Gutenberg downloadsfr2022Modern cosmogonies
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356 Gutenberg downloadsen2021Difficulty 64 (Academic)The origin and development of the atomic theory
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356 Gutenberg downloadsen2025Difficulty 65 (Academic)Die Milchstraße
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355 Gutenberg downloadsde2016Naturgeschichte einer Kerze : $b Sechs Vorlesungen für die Jugend; Mit einem Lebensabriß Faraday's
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354 Gutenberg downloadsde2023Le Téléphone, le Microphone et le Phonographe
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352 Gutenberg downloadsfr2008Scientific American Supplement, No. 648, June 2, 1888.
Various
351 Gutenberg downloadsen2011Difficulty 54 (Graduate)Wireless Possibilities
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351 Gutenberg downloadsen2021Difficulty 58 (Graduate)Central-Station Electric Lighting With Notes on the Methods Used for the Distribution of Electricity
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350 Gutenberg downloadsen2020Difficulty 62 (Academic)Electricity for the 4-H Scientist
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349 Gutenberg downloadsen2011Difficulty 44 (College)William Gilbert, and Terrestial Magnetism in the Time of Queen Elizabeth A Discourse
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349 Gutenberg downloadsen2014Difficulty 63 (Academic)The telephone : $b a lecture entitled Researches in electric telephony
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348 Gutenberg downloadsen2017Difficulty 67 (Academic)A Course of Mechanical, Magnetical, Optical, Hydrostatical and Pneumatical Experiments perform'd by Francis Hauksbee, and the Explanatory Lectures read by William Whiston, M.A.
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347 Gutenberg downloadsen2013Difficulty 56 (Graduate)Benjamin Franklin and the First Balloons
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347 Gutenberg downloadsen2013Difficulty 51 (Graduate)Curiosities of Light and Sight
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347 Gutenberg downloadsen2012Difficulty 59 (Graduate)Dissertation sur la nature et la propagation du feu
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347 Gutenberg downloadsfr2024Leibniz: Zu seinem zweihunderjährigen Todestag 14. November 1916
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347 Gutenberg downloadsde2019The Popular Science Monthly, August, 1900 Vol. 57, May, 1900 to October, 1900
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346 Gutenberg downloadsen2014Difficulty 68 (Academic)The Great Round World and What Is Going On In It, Vol. 1, No. 60, December 30, 1897 A Weekly Magazine for Boys and Girls
Various
345 Gutenberg downloadsen2005Difficulty 51 (Graduate)Facts and fancies in modern science Studies of the relations of science to prevalent speculations and religious belief
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344 Gutenberg downloadsen2013Difficulty 62 (Academic)An epitome of astronomy, with the new discoveries including an account of the eídouraníon, or transparent orrery
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342 Gutenberg downloadsen2020Difficulty 65 (Academic)Clerk Maxwell's electromagnetic theory
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342 Gutenberg downloadsen2023Difficulty 69 (Academic)De Wonderbouw der Wereld : $b De Grondslagen van Ons Sterrekundig Wereldbeeld Populair Uiteengezet
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342 Gutenberg downloadsnl2019The Mysterious Box: Nuclear Science and Art
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342 Gutenberg downloadsen2021Difficulty 48 (College)The Story of a Tinder-box
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342 Gutenberg downloadsen2009Difficulty 48 (College)Le Système Solaire se mouvant
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341 Gutenberg downloadsfr2010The description and use of the globes and the orrery To which is prefix'd, by way of introduction, a brief account of the solar system
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341 Gutenberg downloadsen2020Difficulty 54 (Graduate)Spectropia; or, Surprising Spectral Illusions Showing Ghosts Everywhere, and of Any Colour
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340 Gutenberg downloadsen2020Difficulty 50 (College)A discourse on the theory of gunnery Delivered at the anniversary meeting of the Royal Society, November 30, 1778
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338 Gutenberg downloadsen2022Difficulty 76 (Expert)Blackwood's Edinburgh Magazine, Vol. 76, No. 468, October, 1854
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338 Gutenberg downloadsen2025Difficulty 69 (Academic)Relativitätstheorie und Erkenntnis Apriori
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337 Gutenberg downloadsde2018A Preliminary Dissertation on the Mechanisms of the Heavens
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334 Gutenberg downloadsen2022Difficulty 79 (Expert)Out of Russia
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334 Gutenberg downloadsen2023Difficulty 36 (High School)Observations on the Automaton Chess Player Now Exhibited in London, at 4 Spring Gardens
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333 Gutenberg downloadsen2019Difficulty 66 (Academic)Aspects of science
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332 Gutenberg downloadsen2025Difficulty 62 (Academic)Die Naturwissenschaften in ihrer Entwicklung und in ihrem Zusammenhange, III. Band Das Emporblühen der modernen Naturwissenschaften bis zur Entdeckung des Energieprinzipes
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332 Gutenberg downloadsde2018Science Primers, Introductory
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332 Gutenberg downloadsen2019Difficulty 51 (Graduate)Chambers's Journal of Popular Literature, Science, and Art, Fifth Series, No. 40, Vol. I, October 4, 1884
Various
331 Gutenberg downloadsen2021Difficulty 52 (Graduate)Scientific Studies; or, Practical, in Contrast with Chimerical Pursuits
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331 Gutenberg downloadsen2013Difficulty 63 (Academic)The Dominion Astrophysical Observatory, Victoria, B.C.
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330 Gutenberg downloadsen2020Difficulty 62 (Academic)Eureka
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329 Gutenberg downloadsfr2017Expériences et observations sur l'électricité faites à Philadelphie en Amérique
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329 Gutenberg downloadsfr2008Physical Amusements and Diverting Experiments Composed and Performed in Different Capitals of Europe, and in London
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328 Gutenberg downloadsen2018Difficulty 56 (Graduate)Experimental glass blowing for boys
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324 Gutenberg downloadsen2024Difficulty 39 (High School)Remarks upon the solar and the lunar years, the cycle of 19 years, commonly called the golden number, the epact, and a method of finding the time of Easter, as it is now observed in most parts of Europe
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324 Gutenberg downloadsen2020Difficulty 61 (Academic)Radiation
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323 Gutenberg downloadsen2015Difficulty 55 (Graduate)An Essay to Shew the Cause of Electricity; and Why Some Things are Non-Electricable. In Which Is Also Consider'd Its Influence in the Blasts on Human Bodies, in the Blights on Trees, in the Damps in Mines; And as It May Affect the Sensitive Plant, &c.
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321 Gutenberg downloadsen2016Difficulty 64 (Academic)Beschrijving van het Rijks-Planetarium te Franeker Van 1772 tot 1780 uitgedacht en vervaardigd door Eise Eisinga
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321 Gutenberg downloadsnl2020Aus Natur und Geisteswelt Sammlung wissenschaftlich-gemeinverständlicher Darstellungen aus allen Gebieten des Wissens
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320 Gutenberg downloadsde2016De Usu Ratiocinii Mechanici in Medicina
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320 Gutenberg downloadsla2005The proceedings of the Canadian Eclipse Party, 1869
Ashe, E. D. (Edward David)
320 Gutenberg downloadsen2011Difficulty 48 (College)Ephemerides Barometricae Mutinenses (anni M.DC.XCIV) Cum Disquisitione Causae ascensus ac descensus Mercurii in Torricelliana fistula iuxta diversum Aeris statum
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316 Gutenberg downloadsla2016Stellar Evolution and Its Relations to Geological Time
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316 Gutenberg downloadsen2015Difficulty 60 (Graduate)A természettudomány fejlődésének története (2. kötet)
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315 Gutenberg downloadshu2022Experiments and Observations Tending to Illustrate the Nature and Properties of Electricity In One Letter to Martin Folkes, Esq; President, and Two to the Royal Society
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315 Gutenberg downloadsen2014Difficulty 64 (Academic)A Treatise on Electricity Wherein its various phænomena are accounted for, and the cause of the attraction and gravitation of solids, assigned. To which is added, a short account, how the electrical effluvia act upon the animal frame, and in what disorders the same may probably be applied with success, and in what not.
Penrose, Francis
314 Gutenberg downloadsen2019Difficulty 68 (Academic)La maniere d'amolir les os, et de faire cuire toutes sortes de viandes en fort peu de temps, & à peu de frais.
Papin, Denis
314 Gutenberg downloadsfr2016Popular lessons in astronomy, on a new plan : $b in which some of the leading principles of the science are illustrated by actual comparisions, independent of the use of numbers
Grund, Francis J. (Francis Joseph)
311 Gutenberg downloadsen2023Difficulty 46 (College)Arago et sa vie scientifique
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309 Gutenberg downloadsfr2008How to become an inventor : $b Containing experiments in photography, hydraulics, galvanism and electricity, magnetism, heat, and the wonders of the microscope
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309 Gutenberg downloadsen2024Difficulty 49 (College)Photographic investigations of faint nebulae
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309 Gutenberg downloadsen2023Difficulty 53 (Graduate)Atoms at the Science Fair: Exhibiting Nuclear Projects
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308 Gutenberg downloadsen2021Difficulty 62 (Academic)Feltalálók, felfedezők, nagy emberek
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306 Gutenberg downloadshu2025Teste quadre
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306 Gutenberg downloadsit2015Galileo and His Judges
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305 Gutenberg downloadsen2020Difficulty 68 (Academic)The evolution of worlds from nebulae
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305 Gutenberg downloadsen2023Difficulty 56 (Graduate)The highest aim of the physicist
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305 Gutenberg downloadsen2023Difficulty 55 (Graduate)A new discovery for finding the longitude
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304 Gutenberg downloadsen2025Difficulty 48 (College)Die Luftschiffahrt der Gegenwart
Hoernes, Hermann
304 Gutenberg downloadsde2013Books Relating to Applied Science, Published by E. & F. N. Spon, 1890.
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303 Gutenberg downloadsen2021Difficulty 62 (Academic)Chambers's Journal of Popular Literature, Science, and Art, fifth series, no. 126, vol. III, May 29, 1886
Various
302 Gutenberg downloadsen2023Difficulty 54 (Graduate)Het Nut der Mechanistische Methode in de Geneeskunde
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299 Gutenberg downloadsnl2005Verklaring van het stoomwerktuig zijnde eene algemeen bevattelijke beschrijving van deszelfs onderscheidene deelen, zamenstelling en werking.
Unknown
299 Gutenberg downloadsnl2010Essays, or discourses, vol. 4 (of 4) : $b Selected from the works of Feyjoo, and translated from the Spanish
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298 Gutenberg downloadsen2025Difficulty 72 (Expert)American Horological Journal, Vol. I, No. 1, July 1869: Devoted to Pratical Horology
Unknown
297 Gutenberg downloadsen2022Difficulty 60 (Graduate)A Plan for Securing Observations of the Variable Stars
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296 Gutenberg downloadsen2011Difficulty 56 (Graduate)Meinauer Naturlehre
Unknown
295 Gutenberg downloadsde2009Warum und Weil. Physikalischer Teil. Fragen und Antworten aus den wichtigsten Gebieten der gesammten Naturlehre.
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295 Gutenberg downloadsde2020Das lebende Lichtbild: Entwicklung, Wesen und Bedeutung des Kinematographen
Liesegang, Franz Paul
293 Gutenberg downloadsde2017Scientific American magazine, Vol. 2 Issue 1 The advocate of Industry and Journal of Scientific, Mechanical and Other Improvements
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293 Gutenberg downloadsen2009Difficulty 52 (Graduate)Discorso sopra la calamita
Castelli, Benedetto
292 Gutenberg downloadsit2015Einstein et l'univers: Une lueur dans le mystère des choses
Nordmann, Charles
292 Gutenberg downloadsfr2013History of the Harvard College Observatory During the Period 1840-1890
Baker, Daniel W.
292 Gutenberg downloadsen2019Difficulty 57 (Graduate)Address delivered before the British Association assembled at Belfast
Tyndall, John
291 Gutenberg downloadsen2025Difficulty 62 (Academic)Remarks on a Pamphlet Lately published by the Rev. Mr. Maskelyne, Under the Authority of the Board of Longitude
Harrison, John
290 Gutenberg downloadsen2011Difficulty 77 (Expert)The new science of space speech
Gaddis, Vincent H. (Vincent Hayes)
289 Gutenberg downloadsen2025Difficulty 56 (Graduate)A világegyetem élete és megismerésének története a legrégibb időtől napjainkig
Arrhenius, Svante
288 Gutenberg downloadshu2022Astronomy for Young Australians
Bonwick, James
288 Gutenberg downloadsen2018Difficulty 33 (High School)Remarks of the President in Presenting to Madam Curie a Gift of Radium from the American People
Harding, Warren G. (Warren Gamaliel)
288 Gutenberg downloadsen2019Difficulty 60 (Graduate)On the distribution of intensity in stellar absorption lines
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287 Gutenberg downloadsen2025Difficulty 57 (Graduate)Jorden och solsystemet : $b Några blad ur historien om vetenskapens strider
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286 Gutenberg downloadssv2016Lecture on Artificial Flight Given by request at the Academy of Natural Sciences
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286 Gutenberg downloadsen2011Difficulty 66 (Academic)Was mir das Sternenlicht erzählt: Eine populäre Himmelskunde für die Jugend
Erber, Felix
285 Gutenberg downloadsde2018The chemical nature of the alpha particles from radioactive substances
Rutherford, Ernest
284 Gutenberg downloadsen2023Difficulty 65 (Academic)Die Welt der Planeten
Meyer, M. W. (Max Wilhelm)
279 Gutenberg downloadsde2018Vasárnapi Könyv. 1914. Első félév 17. füzet
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277 Gutenberg downloadshu2010Natuurkunde in de Huiskamer: ongeveer 100 proeven met huishoudelijke voorwerpen.
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275 Gutenberg downloadsnl2016Collezione dell'opere del Cavaliere Conte Alessandro Volta - Tomo I, Parte I
Volta, Alessandro
272 Gutenberg downloadsit2019Sonne und Sterne
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271 Gutenberg downloadsde2021De martelaars der wetenschap
Tissandier, Gaston
267 Gutenberg downloadsnl2018Curiosities of Heat
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266 Gutenberg downloadsen2012Difficulty 45 (College)Beitrag zur Beurteilung der Lehren Machs : $b Inaugural-Dissertation zur Erlangung der Doktorwürde
Musil, Robert
264 Gutenberg downloadsde2014Einiges aus der Geschichte der Astronomie im Alterthum Rede zur Feier des Geburtstags Sr. Maj. des Deutschen Kaisers Königs von Preussen Wilhelm I. gehalten an der Christian-Albrechts
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254 Gutenberg downloadsde2012The Sun changes its position in space therefore it cannot be regarded as being "in a condition of rest"
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250 Gutenberg downloadsen2012Difficulty 62 (Academic)Yleinen Maatiede : $b Luonnollinen Maatide ynnä Venäjän valtakunta, Euroopassa olevine alusmaineen, valtiollisesti
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242 Gutenberg downloadsfi2025Geometrical Solutions Derived from Mechanics; a Treatise of Archimedes
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235 Gutenberg downloadsen2005Difficulty 67 (Academic)Über die Vulkane im Monde
Kant, Immanuel
228 Gutenberg downloadsde2012War in Heaven
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219 Gutenberg downloadsen2023Difficulty 53 (Graduate)