Eppur si muove. Vislumbres de Galileo Galilei

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When Einstein was in Madrid in 1923, he said that his theory of relativity was no more than the continuation of what Newton and Galileo had found. Certainly the latter studied the different movements and came to define their differences, concluding that the movement of a system is captured only in relation to “things that lack it; but among the things that participate equally in it, nothing operates and it is as if it did not exist”. In this text we try to explain the difference between his discovery of relativity and that of Einstein, which involves the equivalence of mass and energy and the fundamental valuation of the speed of light.

Key words

Inertial systems, simultaneity, mass, energy, speed of light.

Full text – Spanish (pdf)

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