On Jun 30, 121 years ago, Albert Einstein's groundbreaking paper "On the Electrodynamics of Moving Bodies" (original German version: "Zur Elektrodynamik bewegter Körper) was received by the journal Annalen der Physik. In it, Einstein laid the foundation for the theory of special relativity, introducing key principles that transformed our understanding of space, time, and electromagnetism.
The following video provides the key insights of the paper:
Along with his other 1905 papers (photoelectric effect--for which he received the Nobel Prize in Physics in 1921, Brownian motion, and mass-energy equivalence), it became part of the 'annual mirabilis' works that transformed 20th-century science.
