
Einstein's 1905 paper proved the existence of atoms by explaining pollen's random motion
Einstein's 1905 paper proved the existence of atoms by explaining pollen's random motion
Einstein's explanation of Brownian motion mathematically showed that the motion could only be explained if the particles were being hit by smaller, invisible particles, which we now know as atoms. This provided strong evidence for the existence of atoms.
Einstein's work on Brownian motion was crucial in confirming the atomic theory, which was a fundamental concept in physics at the time.
Photoelectric effect
Light comes in discrete quanta, not continuous waves
Special relativity
Albert Einstein's special relativity paper introduced time dilation
Einstein's photoelectric explanation used Planck's E=hf to predict that higher frequency light ejects faster electrons
Einstein's photoelectric equation E=hf predicts faster electron ejection with higher frequency light
Einstein's mass-energy paper was only three pages
Einstein's mass-energy paper was concise due to the elegant derivation from special relativity
Arrow of time
Arthur Eddington coined the term "arrow of time" in 1927
Copenhagen interpretation
Copenhagen: Wavefunction collapse upon observation creates reality
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