Albert Einstein publishes the third of his Annus Mirabilis papers, introducing the special theory of relativity.

The annus mirabilis papers are four papers that Albert Einstein published in the scientific journal Annalen der Physik in 1905. As major contributions to the foundation of modern physics, these scientific publications were the ones for which he gained fame among physicists. They revolutionized science's understanding of the fundamental concepts of space, time, mass, and energy.The first paper explained the photoelectric effect, which established the energy of the light quanta , and was the only specific discovery mentioned in the citation awarding Einstein the 1921 Nobel Prize in Physics.

The second paper explained Brownian motion, which established the Einstein relation and compelled physicists to accept the existence of atoms. The third paper introduced Einstein's special theory of relativity, which proclaims the constancy of the speed of light and derives the Lorentz transformations.

Einstein also examined relativistic aberration and the transverse Doppler effect. The fourth, a consequence of special relativity, developed the principle of mass–energy equivalence, expressed in the equation and which led to the discovery and use of nuclear power decades later.

Einstein patentoffice
Einstein patentoffice (Source: Wikimedia Commons)
Albert einstein house bern
Albert einstein house bern (Source: Wikimedia Commons)
Annalen der Physik ToC June 1905
Annalen der Physik ToC June 1905 (Source: Wikimedia Commons)
E mc 2 IMG 0859
E mc 2 IMG 0859 (Source: Wikimedia Commons)

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Sources and further reading: Wikipedia — Annus mirabilis papers, Albert Einstein (CC BY-SA). Images: Wikimedia Commons.