Order by 12PM ET on 6/11 for Delivery by Father's Day | Find a giftOrder by 12PM ET on 6/11 for Delivery by Father's Day | Find a gift
Essays examining the evolution of scientific understanding on the one hundredth anniversary of quantum mechanics.

In 1925 and 1926, the near-simultaneous development of two seemingly different mathematical approaches describing the behavior of subatomic particles revolutionized our understanding of the nature of matter. Werner Heisenberg’s matrix mechanics and Erwin Schrödinger’s wave equation were soon shown to be equivalent formulations of the same underlying concepts, and this new field o...