Georgius Agricola, born in 1494, mineralogist, he was a physician who worked at a mining town. He took the knowledge of the miners and wrote a book. Because of this he became known as the father of mineralogy. He died in 1555 at age 61.
Joseph Liouville, born in 1809, mathematician, he discovered transcendental numbers which are numbers that are not solutions to a polynomial. Such as e and e squared (about 2,7). He died in 1882 at age 73.
Josef Stefan, born in 1835, physicist, he was interested in the rate of cooling of hot bodies and said the total radiation of a hot body was proportional to the fourth power of the absolute temperature. Thus if temp is doubled the radiation increased 16 fold. This is called Stefan’s fourth power law. It became known as the Stefan-Boltzman Law. He died in 1893 at age 58.
Peter DeBye, born in 1884, chemist, he worked under Sommerfield. Worked on dipole moments. Debye Huckle theory, He extended Arrhenius theory of ionization. Debye said that salts are completely dissolved but a dragging effect caused by the ions being surrounded by ions of opposite charge make it seem like they are incompletely dissociated. He died in 1966 at age 82.
Walter Baade, born in 1893, astronomer, Gottingen, discovered the planetoid Hidalgo, and Icarus. He located over 300 cepheids in Andromeda. He said there were two sets of stars, bluish, young population 1 stars in the outer galaxy and reddish older population 2 stars in the inner galaxy. He found that cepheid strss occurred in Population 1 and Population 2 stars. He died in 1960 at age 67.
Adolf Butenandt, chemist, he isolated and identified the sex hormones, estrone in 1929, androsterone in 1931, progesterone in 1934. He was forced by Hitler to refuse the Nobel prize but received it after the war. He died in 1995 at age 91.
Sidney Fox, born in 1912, chemist, he worked on the origin of life. Proteinoids were formed from amino acids on hot rocks. They form sphere that take on some of the characteristics of cells. He died in 1998 at age 86.
John Kendrew, born in 1917, chemist, he worked on the structure of myoglobin using X-ray diffraction, he died in 1997 at age 80.