1933 - Science

Science

Weymouth, Mass.-born chemist Gilbert Newton Lewis, 57, at the University of California, Berkeley, prepares a pure sample of heavy water (deuterium oxide). He has been the first to isolate deuterium, an isotope of hydrogen (see Urey, 1931).

Physicist Philipp Lenard denounces "Jewish science," including Albert Einstein's theory of relativity. Now 71, Lenard is an ardent supporter of Nazism, but the emigration of Jewish researchers will cripple Germany's scientific community for years to come.

The Steinheim skull unearthed along with elephant and rhinoceros bones from a gravel pit 12 miles north of Stuttgart dates to the Pleistocene era. It will be classified as belonging to an early subspecies of Homo sapiens called Homo sapiens heidelbergensis, and its discovery marks a step forward in the study of evolution.