Cosmology1917
De Sitter develops an expanding relativistic cosmological solution without matter, influencing later debate over cosmic expansion
Historical person
Willem de Sitter Biography
Historical biography and chronological timeline for Willem de Sitter, based on 3 World History Database records associated with Netherlands.
3 records1917–19172 events2 places
Chronological biography
1917
Cosmology1917
De Sitter finds a relativistic cosmological solution that later becomes important in expanding universe models
De Sitter Cosmological Model1917
De Sitter develops a solution of Einstein's equations containing a cosmological constant, demonstrating that cosmic behaviour can be strongly affected by vacuum-like geometry.
Titles and roles
Astronomer
Record provenance
This biography is assembled from World History Database records filtered by country and personal-name fields. Exact duplicate display records are removed. The database is an index rather than a complete narrative biography; formal research should verify entries against relevant primary or specialist sources.