| Date | Text | |
|---|---|---|
29 Jul 1898
John Alexander Newlands |
death John Alexander Newlands Died 29 Jul 1898 at age 60 (born 26 Nov 1837). John Alexander Reina Newlands was an English chemist who first established an order of elements by the atomic weights, and observed a periodicity in the properties. Every eighth element has similar properties, hence he named the Law of Octaves (7 Feb 1863). It took another quarter century, and the work of others, such as Dmitry Mendeleev, for the significance of his discovery to be recognized. |
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29 Jul 1898
Anthony John Arkell |
birth Anthony John Arkell Born 29 Jul 1898; died 26 Feb 1980 at age 81. English historian and Egyptologist who was one of the pioneers of archaeological search in Sudan where, as an outstanding colonial administrator, he combined a passion for the past with a humanitarian concern for the peoples of modern Africa. After serving in the Royal Air Force, Arkell joined the Sudan Political Service (1920) and set about abolishing the slave trade between the Sudan and Ethiopia. He was appointed commissioner for archaeology and anthropology in 1938 and undertook several digs that opened up the previously unknown field of Sudanese prehistory. He returned to England in 1948, and wrote his authoritative A History of the Sudan From the Earliest Times to 1821 (1955). This book gave a comprehensive history of the Sudan running from the Stone Age to the advent of the Turks in 1821, based upon his archeological and anthropological findings. He also wrote The Prehistory of the Nile Valley. |
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29 Jul 1898
Isidor Isaac Rabi |
birth Isidor Isaac Rabi Born 29 Jul 1898; died 11 Jan 1988 at age 89. Austrian-American physicist who was awarded the Nobel Prize for Physics in 1944 for his invention (in 1937) of the atomic and molecular beam magnetic resonance method of measuring magnetic properties of atoms, molecules, and atomic nuclei. He spent most of his life at Columbia University (1929-67), where he performed most of his pioneering research in radar and the magnetic moment associated with electron spin in the 1930s and 1940s. His Nobel-winning work led to the invention of the laser, the atomic clock, and diagnostic uses of nuclear magnetic resonance. He originated the idea for the CERN nuclear research center in Geneva (founded 1954). |
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