Anders Celsius magnitude (a measure of brightness) of certain stars. This was the first attempt to measure the intensity of starlight with a tool other than the human eye. He made observations of eclipses and various astronomical objects and published catalogues of carefully determined magnitudes for some 300 stars using his own photometric system (mean error=0.4 mag). Celsius was the first to perform and publish careful experiments aiming at the definition of an international temperature scale on scientific grounds. In his Swedish paper "Observations of two persistent degrees on a thermometer" he reports on experiments to check that the freezing point is
Frank L. Anders Frank L. Anders Frank LaFayette Anders (November 10, 1875 – January 23, 1966) was a United States Army soldier who received the Medal of Honor for actions during the Philippine-American War. He went on to become a noteworthy engineer, businessman, amateur military historian and politician. Anders was born in Fort Abraham Lincoln, Dakota Territory, in what is now Fort Abraham Lincoln State Park, North Dakota. His father, formerly a Union Army soldier died of complications related to his wounds in 1890, and Anders, at age 15 began work with the Northern Pacific Railroad and became a machinist. In 1894 Anders