 | Willem de Sitter (6 May 1872 – 20 November 1934) was a Dutch mathematician, physicist, and astronomer. Born in Sneek, de Sitter studied mathematics at... 11 KB (952 words) - 07:05, 17 March 2024 |
energy density and negative pressure). De Sitter space and anti-de Sitter space are named after Willem de Sitter (1872–1934), professor of astronomy at... 11 KB (2,198 words) - 06:36, 17 March 2024 |
 | named after Willem de Sitter (1872–1934), professor of astronomy at Leiden University and director of the Leiden Observatory. Willem de Sitter and Albert... 29 KB (4,795 words) - 06:43, 21 November 2023 |
A de Sitter universe is a cosmological solution to the Einstein field equations of general relativity, named after Willem de Sitter. It models the universe... 6 KB (764 words) - 06:22, 17 March 2024 |
 | Geodetic effect (redirect from De Sitter precession) first predicted by Willem de Sitter in 1916, who provided relativistic corrections to the Earth–Moon system's motion. De Sitter's work was extended in... 9 KB (1,471 words) - 18:37, 17 February 2024 |
The Einstein–de Sitter universe is a model of the universe proposed by Albert Einstein and Willem de Sitter in 1932. On first learning of Edwin Hubble's... 7 KB (820 words) - 14:58, 17 February 2023 |
 | structural geology. De Sitter was known for his research on the geology of the Alps and Pyrenees. His father was the astronomer Willem de Sitter (1872–1934), and... 6 KB (601 words) - 17:07, 1 April 2024 |
In 1925 he completed his PhD in astronomy under the supervision of Willem de Sitter and was invited by R.T.A. Innes to join the Union Observatory in Johannesburg... 7 KB (565 words) - 11:03, 18 August 2023 |
de Sitter effect (named after the Dutch physicist Willem de Sitter) has been applied to two unrelated phenomena: De Sitter double star experiment De Sitter... 328 bytes (72 words) - 10:11, 17 August 2014 |
Willem de Sitter (1872–1934) was a Dutch mathematician, physicist and astronomer. De Sitter may also refer to: De Sitter (crater), a lunar crater 1686... 673 bytes (112 words) - 10:54, 30 May 2018 |