
1905
The photoelectric effect revolutionized our understanding of light and matter, leading to the development of quantum theory.

Harris & Ewing Studio, active 1905 - · CC0
In January 1905, Albert Einstein sits at his cluttered desk in Bern, scribbling furiously as he formulates a revolutionary idea: light can behave as both a wave and a particle. He introduces the concept of photons, suggesting that these tiny packets of energy are responsible for the photoelectric effect, challenging the very foundations of classical physics. With each stroke of his pen, he edges closer to reshaping our understanding of light itself.
AI-reconstructed · Chronos
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World context
190519191125 A New Physics Based on Einstein - The New York Times

Wikimedia Commons
World context
1905Albert Einstein's exam of maturity grades (color2)
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