September 3 is Carl David Anderson’s birthday. Anderson was the American physicist who discovered the positron. Anderson attended Caltech as an electrical engineering student but switched to physics after attending a lecture. He worked as a research assistant to Robert Millikan who was trying to prove a theory of his […]
September 2 marks the passing of Franz Xaver von Zach. Franz Xaver was a Hungarian astronomer who was the director of the Gotha Observatory when it first began operations. Xaver’s primary contribution to astronomy was organizing the search for the missing planet between Mars and Jupiter. Astronomers as early as […]
September 1 is Carl Auer von Welsbach’s birthday. Auer was the Austrian chemist-inventor that isolated the elements praseodymium and neodymium. Much of Auer’s chemical career centered around the study of rare-earth elements. These are the elements that appear in their own section at the bottom of the periodic table (lanthanides […]