Albert Einstein: Philosopher-scientist by Paul Arthur Schilpp

By Paul Arthur Schilpp

Written via the fellow thought of the "Person of the Century" via Time journal, this isn't a glimpse into Einstein's own lifestyles, yet an extension and elaboration into his pondering on technological know-how. of the nice theories of the actual international have been created within the early twentieth century: the idea of relativity and quantum mechanics. Einstein created the speculation of relativity and used to be additionally one of many founders of quantum idea. right here, Einstein describes the failure of classical mechanics and the increase of the electromagnetic box, the speculation of relativity, and of the quanta. Written in German by means of Einstein himself, the booklet is confronted, page-by-page, with a translation by way of the famous Professor of Philosophy Paul Arthur Schilpp.

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B), which corresponds to the theorem of addition for velocities in one direction according to the theory of relativity. The question now arises as to which of these two theorems is the better in accord with experience. On this point we are enlightened by a most important experiment which the brilliant physicist Fizeau performed more than half a century ago, and which has been repeated since then by some of the best experimental physicists, so that there can be no doubt about its result. The experiment is 41 42 special theory of relativity concerned with the following question.

Experience has led to the conviction that, on the one hand, the principle of relativity holds true and that on the other hand the velocity of transmission of light in vacuo has to be considered equal to a constant c. By uniting these two postulates we obtained the law of transformation for the rectangular co-ordinates x, y, z and the time t of the events which constitute the processes of nature. In this connection we did not obtain the Galilei transformation, but, differing from classical mechanics, the Lorentz transformation.

A. Lorentz on the electrodynamical and optical phenomena connected with moving bodies show that experience in this domain leads conclusively to a theory of electromagnetic phenomena, of which the law of the constancy of the velocity of light in vacuo is a necessary consequence. Prominent theoretical physicists were therefore more inclined to reject the principle of relativity, in spite of the fact that no empirical data had been found which were contradictory to this principle. At this juncture the theory of relativity entered the arena.

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