September 26, 1905 - Albert Einstein publishes his theory of special relativity

Between March and September 1905, the German scientific journal "Annales der Physik" mailbox received four studies that would forever change the laws of physics and, ultimately, the conception of the reality of light, matter, time, and space.

The author was a 26-year-old Albert Einstein who, at the time, was working at the patent office in Berne (Switzerland). His career as a physicist had stalled after the rejection of his doctoral thesis, and his scientific passion had been relegated to his spare time and long idle hours in the office. However, this year was a miraculous one for Einstein with these four significant studies.

The third study of that year was perhaps the most promising. It dealt with "The Electrodynamics of Moving Bodies" and was published on 26 September 1905.

It was the condensation of Einstein's new physics into the well-known theory of special relativity, which was to precede general relativity (which, in 1915, also included the influence of acceleration and gravity). Einstein postulated in this study that the speed of light is immutable, constant, and independent of the observer's motion. Therefore, with the exception of the speed of light constant, everything is relative, including time, distance, and mass.

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