Search results
Results From The WOW.Com Content Network
Willem de Sitter's argument against emission theory. According to simple emission theory, light moves at a speed of c with respect to the emitting object. If this were true, light emitted from a star in a double-star system from different parts of the orbital path would travel towards us at different speeds.
One of his sons, Ulbo de Sitter (1902 – 1980), was a Dutch geologist, and one of Ulbo's sons was a Dutch sociologist Ulbo de Sitter (1930 – 2010). Another son of Willem, Aernout de Sitter (1905 – 15 September 1944 [7]), was the director of the Bosscha Observatory in Lembang, Indonesia (then the Dutch East Indies), where he studied the Messier 4 globular cluster.
Willem de Sitter's argument against emission theory. According to simple emission theory, light moves at a speed of c with respect to the emitting object. If this were true, light emitted from a star in a double-star system from different parts of the orbital path would travel towards us at different speeds.
The de Sitter double star experiment, later repeated by Brecher under consideration of the extinction theorem. Emission theories, according to which the speed of light depends on the velocity of the source, can conceivably explain the negative outcome of aether drift experiments.
The difference between de Sitter precession and Lense–Thirring precession (frame dragging) is that the de Sitter effect is due simply to the presence of a central mass, whereas Lense–Thirring precession is due to the rotation of the central mass. The total precession is calculated by combining the de Sitter precession with the Lense ...
In astrophysics, the term 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 precession – also known as geodetic precession or the geodetic effect
Origins of the body double theory. US Senator John Fetterman (D-PA) and his wife Gisele Barreto Fetterman arrive for the White House Correspondents' Association dinner at the Washington Hilton in ...
De Sitter double star experiment: Kenneth Brecher: Negative result de Sitter effect 1980 Aspect's experiment: Alain Aspect: Confirmation Violation of Bell's inequalities: 1981 UA1 and UA2 experiments: CERN: Discovery W and Z bosons: 1992 DØ experiment: CERN: Multiple Top quark: 1998 Delayed-choice quantum eraser: Marlan Scully: Demonstration