Consider for a moment the sorrows of Max Planck, the theoretical physicist who originated quantum theory. In 1909, his wife, Marie Merck, died of tuberculosis. In 1914, his son, Erwin, was taken prisoner by the French during the First World War. Then his eldest son, Karl, was killed in 1916 at the Battle of Verdun.
Planck had twin daughters he adored—Emma and Grete. In 1917, Grete died in childbirth. Her twin sister Emma went to care for the surviving baby and soon fell in love with her sister’s husband. Soon after this, in 1918, Planck received the Nobel Prize for physics. The next year, 1919, his daughter Emma also died giving birth to her first child. Continue reading