L1 Bibliography in the Order of Occurrence
[01]m  Newton, Isaac: Philosophiae Naturalis Principia Mathematica 
First Edition London 1687  
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[02]  Newton, Isaac: The Principia, Mathematical Principles of Natural Philosophy 
translated into English by and printed for Andrew Motte, London 1729  
Free pdfdownloads via search keys 'newton motte principles natural philosophy') 

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[03]  Newton, Isaac: The Principia: Mathematical Principles of Natural Philosophy 
translation by Bernard Cohen and Anne Whitman, including "A Guide to Newton's Principia" by I. Bernard Cohen  
University of California Press, Berkeley • Los Angeles • London, 1999  
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[04]  Galilei, Galileo: Dialogo sopra i due massimi sistemi del mondo 
Battista Landini, Florenz 1632  
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[05]  Galilei, Galileo: Dialogue Concerning the Two Chief World Systems 
translated by Stillman Drake  
University of California Press, Berkeley • Los Angeles 1953  
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[06] 
Galileo Galilei: Dialogue on the Great World Systems in the Salusbury Translation 
Revised and annotated by Giorgio de Santillana 

University of Chicago Press, Chicago; Cambridge University Press, London, 1953  
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[07] 
Kepler, Johannes: Astronomia Nova 
Printed at Vögtlin, Heidelberg, 1609  
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[08] 
Kepler, Johannes: Neue Astronomie 
Translation from Latin into German by Max Caspar 

Oldenbourg Verlag, München, 1929/1990  
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[09]  Stachel, John (Ed.): Einstein’s Miraculous Year 
Introduction by John Stachel, with the assistance of Trevor Lipscombe, Alice Calaprice and Sam Elsworthy  
Princeton University Press, Princeton • Oxford, 1998  
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[10] 
Pais, Abraham: Subtle is the Lord ... 
Oxford University Press, Oxford, 1982/2008  
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[11] 
Sexl, Roman; Raab, Ivo and Streeruwitz, Ernst: Materie in Raum und Zeit 
Eine Einführung in die Physik Bd. 3  
Sauerländer Verlag, Aarau • Frankfurt • Salzburg, 1996^{3}  
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[12] 
Gimble, Steven and Walz, Anke: Defending Einstein 
Cambridge University Press, Cambridge, 2006  
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[13] 
Jammer, Max: Concepts of Simultaneity 
John Hopkins University Press, 2006  
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[14] 
Taylor, Edwin F. and Wheeler, John Archibald: Spacetime Physics 
W.H. Freeman and Company, New York, 1991^{2}  
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[15] 
Epstein, Lewis Carroll: Relativity Visualized 
Insight Press, San Francisco, 1981  
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[16]  Poincaré, Henri: Science and Hypothesis 
translated by V.J.G. (?) , The Walter Scott publishing Co., 1905  
Free download via http://en.wikipedia.org/wiki/Henri_Poincaré  
and http://www.archive.org/details/scienceandhypoth00poinuoft  
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[17]  Calaprice, Alice (Ed.): The New Quotable Einstein 
Princeton University Press, Princeton • Oxford, 2005 

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[18]  Wheeler, John Archibald: Journey into Gravity and Spacetime 
Scientific American Library, W.H. Freeman, New York 1990 

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[19]  Adams, Steve: Relativity  An introduction to spacetime physics 
Taylor & Francis, Boca Raton • London • New York 1997 

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[20]  Einstein, Albert: The World As I See It 
translation of Mein Weltbild by Allen Harris  
Citadel Press Books, Kensington Publishing Corp., New York, 1956  
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[21]  Fischer, Ernst Peter: Einstein für die Westentasche 
Piper Verlag, München • Zürich 2005^{4}  
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[22]  Einstein, Albert: Out of My Later Years 
Wings Books, New York • Avenel, New Jersey 1956 

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[23]  Volkmer, Martin: Basiswissen Kernenergie 
Herausgeber: Informationskreis KernEnergie, Berlin, 2005^{2 } 

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[24]  Fowler, Michael: Lecture Notes on Special Relativity 
http://galileo.phys.virginia.edu/classes/252/ (HTTP and PDF versions)  
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[25]  Sexl, Roman and Schmidt, Herbert Kurt: Raum Zeit Relativität 
Friedr. Vieweg & Sohn Verlagsgesellschaft mbH, Braunschweig Wiesbaden, 1991^{3}  
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[26]  Freund, Jürgen: Special Relativity for Beginners: A Textbook for Undergraduates 
World Scientific Publishing Co., Singapore 2008 link 

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[27]  Melcher, Horst: Relativitätstheorie in elementarer Darstellung 
VEB Deutscher Verlag der Wissenschaften, Berlin, 1970^{2}  
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[28]  Genz, Henning: Nothingness: The Science of Empty Space 
W.W.Norton & Company, New York • London 1994 

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[29]  Misner, Charles W.; Thorne, Kip S. and Wheeler, John Archibald: Gravitation 
W. H. Freeman and Company, New York, 1973  
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[30]  Einstein, Albert: Relativity, The Special and the General Theory 
Three Rivers Press, New York 1961 

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[31]  Bührke, Thomas: Albert Einstein 
Deutscher Taschenbuch Verlag, München 2005^{2}  
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[32]  Hermann, Armin: Einstein  der Weltweise und sein Jahrhundert 
R. Piper GmbH & Co. KG, München 1994  
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[33]  Matter, Mani: Us emene lääre Gygechaschte 
Benziger Verlag, Zürich • Köln, 1971^{1} 1982^{19}  
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[34]  Thorne, Kip S.: Black Holes & Time Warps. Einstein's Outrageous Legacy 
W.W.Norton & Company, New York • London 1994  
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[35]  Fritzsch, Harald: An Equation That Changed the World 
The University of Chicago Press, Chicago • London 1994/1997 pb  
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[36]  Fritzsch, Harald: The Curvature of Spacetime: Newton, Einstein and Gravitation 
Columbia University Press, New York 2002 

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[37]  Guthmann, Andreas: Einführung in die Himmelsmechanik und Ephemeridenrechnung 
Spektrum Akademischer Verlag, Heidelberg • Berlin, 2000^{2}  
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[38]  Pais, Abraham: Einstein Lived Here 
Oxford University Press, New York 1994  
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[39]  Alley, Carroll O.: Relativity and Clocks 
33rd Annual Symposium on Frequency Control, 1979, p. 439  
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[40]  Ciufolini, Ignazio and Pavlis, E. C.: A confirmation of the general relativistic prediction of the LenseThirring effect 
Nature, Vol. 431, 21, October, 2004, p.958960  
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[41]  Kramer, Michael: Pulsare als kosmische Uhren 
Sterne und Weltraum (periodical) 10/2006 p.3037  
http://www.skyandtelescope.com/news/3310106.html  
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[42]  Born, Max: Einstein's Theory of Relativity 
Dover Publications, Inc. , New York 1962 (first German edition 1920) 

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[43]  Kranzer, Walter: So interessant ist Physik 
Aulis Verlag Deubner & Co. , Köln 1990^{2} 

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[44]  Bais, Sander: Very Special Relativity An Illustrated Guide 
Harvard University Press, Cambridge, Massachusetts and London, England 2007  
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[45]  Asano, Seiichi und Asano, Shiro: A Novel Concept for Understanding the Special Theory of Relativity  The SpaceTime Circular Diagram Method 
Gakujutsu Tosho Ltd., Tokyo 1994 (first Japanese edition 1983)  
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[46]  Rosenkranz, Ze’ev: Albert Einstein  privat und ganz persönlich 
Historisches Museum Bern / Verlag Neue Zürcher Zeitung / Albert Einstein Archiv, Bern • Zürich • Jerusalem 2004  

The accomplishments of Johannes Kepler for the development of modern astronomy and physics can not be overemphasized. On the principle of inertia, he was as close as Galileo; on the forces that must act between the heavenly bodies, he had clear ideas; and concerning kinematics he was far superior to Galileo. Also his observations on the tides are much more reasonable than those of Galileo. Kepler and Galileo corresponded. While Kepler spoke with great respect for Galileo's research, Galileo hardly even took note of Kepler's work and never provided him with one of his telescopes. Kepler had expressly asked him for one so that he could experience with his own eyes the wonderful discoveries made by Galileo. Also in optics theory, Kepler was far ahead of Galileo. Kepler’s booklet "Dioptrics" is still today useful as a theory of ray optics.
Einstein writes of the relationship between Galileo and Kepler: "Alas, you find [vanity] in so many scientists! It has always pained me that Galileo did not acknowledge the work of Kepler" [1779]
With the following excerpt from the introduction to "Astronomia Nova" of Kepler, I would like to convey an impression of his thinking in physics:
The true doctrine of gravity is based on the following axioms: Every corporeal substance, insofar as it is physical, is naturally inclined to rest at the place where it finds itself, outside the force field of a related body. Gravity arises from the mutual corporeal tendency of related bodies for unification or combination (magnetic force also arises in this way), thus the earth attracts the stone rather than the stone seeks the earth. ...
If the earth were not round, then gravity would not attract in a straight line towards the center of the earth, but rather from different angles toward different points. If one places two stones any place in the world, close to each other but outside of the influence of a third body, then the stones would unite in an intermediate place like two magnetic bodies with one approaching the other by a distance, which is proportional to the mass of the other. ...
The range of attraction of the moon reaches to the earth and draws the water into the hot zone, to meet it where it reaches the zenith; imperceptibly in tightly enclosed seas, but noticeably, where the sea expanse is great and the waters have great leeway to flow back and forth. ... [translated by Samuel Edelstein from 825f]
What Kepler was lacking was a clear understanding of the dynamics of circular motion. He could not quite overcome the old idea that the circular orbit of heavenly bodies is natural and free of force. Christian Huygens was the first to capture the dynamics of circular motion and compute the correct value of the required centripetal force. Thus all the building blocks were available for Newton’s great synthesis. "If I have seen further than others, it is because I have stood on the shoulders of giants" wrote Newton in February 1675 with wellcalculated modesty in a letter to Robert Hooke (according to Wikipedia, the quote dates back to Didactus Stella). Kepler and Huygens were two of these giants. Galileo, Fermat, Descartes, Pascal, and Hooke were others who did much of the mathematical and physical preparation for Newton. What these few men were for Newton, the Greek geometers and astronomers were for Copernicus and Kepler.