Today (November 20, 1934) is the anniversary of Willem de Sitter, the famous Dutch mathematician, physicist and astronomer who studied Jupiter.
Willem de Sitter was born on May
6, 1872, in Suneek. He studied mathematics at the University of Groningen. He
later joined the Kroningen Astronomical Laboratory. From 1897 to 1899 he worked
for the Government Observatory at the tip of Optimism in South Africa.
Later, in 1908 he was employed in the astronomical cot at the University of
Elayton. He was director of the University of Elayton from 1919 until his
death. One of his sons, Ulfo de Sitter, was a Dutch geographer. Another son,
Ulfo de Sitter, is a sociologist.
Willem has done extensive
research in the field of cosmic objectivity. He co-authored a dissertation with
Albert Einstein in 1932. In it, the two discuss the effects of cosmic data on
the Space curve. He described the concept of The de Sitter space and de Sitter universe. This is a solution to Einstein's general relativity. There is no
coherence or linear cosmic constant. It is a hollow plant that expands
continuously in the course of natural development. He is also famous for his
study of Jupiter.
Willem was the director of the
Bochuca Observatory in Ilempong, Indonesia, then known as Dutch East India. He
explored the barrier galaxy Messier 4 here. In 1912 he became a member of the
Dutch Academy of Arts and Sciences. He has received the James Craig Watson
Medal (1929), the Bruce Medal (1931), and the Government Astronomical Society
Gold Medal (1931). Nilak Kuzhippallam The Sitter Asteroid 1686 The Sitter is
named after him. Willem de Sitter, best known for his study of Jupiter, passed
away on November 20, 1934, at the age of 62, in Leiden.
Source By: Wikipedia
Information: Ramesh, Assistant
Professor of Physics, Nehru Memorial College, Puthanampatti, Trichy.
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