4 October 2002
EINSTEIN, Albert. Ist die Trägheit eines Körpers von seinem Energieinhalt abhängig? Offprint from: Annalen der Physik, 4. Folge, Bd. 18, 1905. Leipzig: Johann Ambrosius Barth, 1905.
8o. Original tan printed wrappers (reinforced along spine fold, covers expertly tissue-lined on versos); quarter morocco folding case.
FIRST EDITION, offprint issue. This copy WITH PRINTED PRESENTATION STATEMENT ("A. Einstein. Überreicht vom Verfasser") printed on front wrapper.
"A few months after first publishing the theory of relativity, Einstein discovered something that particularly intrigued him; the relation between inertial mass and energy. He wrote to Conrad Habicht during the summer of 1905: 'One more consequence of the paper on electrodynamics has also occurred to me. The principle of relativity, in conjunction with Maxwell's equations, requires that mass be a direct measure of the energy contained in a body; light carries mass with it. A noticeable decrease of mass should occur in the case of radium. The argument is amusing and seductive, but for all I know the Lord might be laughing over it and leading me around by the nose.'
"The idea that inertial mass is associated with electromagnetic energy was often discussed before 1905. Around the turn of the century, it was suggested that all mechanical concepts might be derivable from those of electromagnetism. In particular, there were attempts to derive the entire inertial mass of the electron from the energy associated with its electromagnetic field....
"Einstein argued that, as a consequence of the relativity principle, intertial mass is associated with all forms of energy. He was only able to establish this result for a process involving the emission of electromagnetic radiation by a system, but argued that the result is independent of the mechanism by which the system loses energy. In addition, he was only able to show that a change in energy is associated with a change in inertial mass equal to the change in energy divided by c2 " (Stachel, Einstein's Miraculous Year, 117-18). THIS IS EINSTEIN'S FIRST PROOF OF THE RELATION THAT WOULD LATER BE STATED IN THE FORMULA E = MC2.
VERY RARE. BRL 10.
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