De Sitter effect
Encyclopedia
In astrophysics
, the term de Sitter effect (named after the Dutch physicist Willem de Sitter
) has been applied to two unrelated phenomena:
Astrophysics
Astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties of celestial objects, as well as their interactions and behavior...
, the term de Sitter effect (named after the Dutch physicist Willem de Sitter
Willem de Sitter
Willem de Sitter was a Dutch mathematician, physicist and astronomer.-Life and work:Born in Sneek, De Sitter studied mathematics at the University of Groningen and then joined the Groningen astronomical laboratory. He worked at the Cape Observatory in South Africa...
) has been applied to two unrelated phenomena:
- de Sitter double star experimentDe Sitter double star experimentThe de Sitter effect was described by de Sitter in 1913 and used to support the special theory of relativity against a competing 1908 emission theory by Walter Ritz that postulated a variable speed of light...
- de Sitter precession – also known as geodetic precession or the geodetic effect