"A method for settling the argument experimentally without waiting for interstellar space ships was suggested by H. Herman of the Standard Telecommunication Laboratories in England. He pointed out that any radioactive atom of known half-life is a clock. He proposed that a beam of such atoms be accelerated to relativistic speed for a measured time in a synchroton and their aging be measured afterward. If the decay of the atoms was less than would normally be expected, this would show that the clock has indeed slowed down."
Gives extension to general relativistic treatment of the clock paradox, p.192-198.
Relativistic idea that speed of light is limiting speed between observers if replaced by restricted universe where speed of sound is imposed limit; Lorentz transformation used to relate time and space units between two frames of reference; one frame of reference is airfoil and the other surrounding air; contraction of body as it approaches speed of light is seen by analogy to be explanation for forces involved.
Relativity of space and time, p.146-156.
In German.
Translated title: Concerning the Doppler principle.
The first suggestion that a "natural" clock would alter its rate on motion appears in this paper.
In German.
Translated title: Definition of the notion of time.
Modern speculations concerning the nature of time and space are discussed, and it is pointed out that the space-time world of the relativity theory is merely an artificial image. The two
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