Chien-Shiung Wu (1912-97): experimental physicist, co-discoverer of parity violation
Article Abstract:
One of the discoverers of parity violation, Chien-Shiung Wu, passed away on Feb 16, 1997 following a stroke. Along with C.S. Wu of Columbia University and E. Ambler, R.W. Hayward, D.D. Hoppes and R.P. Hudson of the National Bureau of Standards, Wu examined the beta-decay of cobalt-60 and established the non-conservation of parity and the violation of particle-antiparticle conjugation symmetry in physics in Feb 1957. A native of China, Wu had teaching stints at Smith College, Princeton University and Columbia University after receiving her doctorate degree in 1940.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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Hans Oeschger (1927-98): Pioneer in environmental physics
Article Abstract:
Hans Oeschger's research focused on the application of modern physics to study the Earth system, particuarly climate change. He trained as an experimental physicist at ETH Zurich and his goal was to build a beta-counter for measuring ultra-low radioactivity. The Oeschger counter was completed in 1955. He began to determine the tritium contents of unconsolidated snow and ice in 1962 and was a leading figure in ice-core research. Oeschger recognized that the Earth should be seen as a complex system.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
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