Einstein and the Quantum Revolutions

A Nobel laureate offers a brief lesson on physics’ biggest mystery, accessibly explaining the two quantum revolutions that changed our understanding of reality.

At the start of the twentieth century, the first quantum revolution upset our vision of the world. New physics offered surprising realities, such as wave-particle duality, and led to major inventions: the transistor, the laser, and today’s computers. Less known is the second quantum revolution, arguably initiated in 1935 during a d...