Relativity: The Special and General Theory - Free Audiobook
1/13Preface
Summary
Relativity: The Special and General Theory is a short book in which Albert Einstein explains his own theories for readers without advanced mathematics. He wrote it in German in 1916, shortly after completing the general theory of relativity, and an English translation by Robert W. Lawson followed in 1920. Einstein revised and expanded it in later editions.
The book is organised into three parts. The first deals with the special theory of relativity, starting from everyday ideas about distance, coordinates and the motion of trains and embankments. Einstein shows how the constant speed of light leads to surprising conclusions: that events simultaneous for one observer may not be for another, that moving clocks and measuring rods behave differently, and that mass and energy are equivalent. The second part turns to the general theory, explaining the equivalence between gravity and acceleration and how gravity can be understood through the geometry of space and time. A short third part considers what the theory implies for the structure of the universe as a whole.
Einstein uses thought experiments and plain examples rather than equations wherever he can, though some passages still require careful attention. The book offers a rare chance to follow a major scientific idea in the words of its creator. It suits curious general readers, students and anyone interested in the history of physics.
About
This is an introduction to Einstein’s space-bending, time-stretching theory of Relativity, written by the master himself. Special and General relativity explain the structure of space time and provide a theory of gravitation, respectively. Einstein’s theories shocked the world with their counterintuitive results, including the dissolution of absolute time. In this book he brings a simplified form of his profound understanding of the subject to the layperson. In the words of Einstein: “The present book is intended, as far as possible, to give an exact insight into the theory of Relativity to those readers who, from a general scientific and philosophical point of view, are interested in the theory, but who are not conversant with the mathematical apparatus of theoretical physics.” The book is challenging at times but, when approached patiently, proves itself one of the most lucid explanations of Relativity to be found anywhere. [Due to transcription or optical character recognition errors in creating online texts, and because of less-than-clear fonts in some printed texts, the variables as read in some of the equations here are not as Einstein intended. For example, the numeral ‘one’ has frequently been printed and read as the letter ‘I.’ In addition, some equations do not translate well into the spoken word. If you require completely accurate renditions of Einstein’s mathematical formulas, we suggest that you consult a published text.] — Summary written by Kelly Bescherer [and Laurie Anne Walden]
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