Inventions & discoveries: D
8 inventions and discoveries
| Invention or discovery | Date | Inventor or discoverer | Type |
|---|---|---|---|
| D/1978 R1 (Haneda-Campos) | September 1978 | Toshio Haneda | periodic comet |
| Daldans | 1848 | Anders Selinder | performing arts genre |
| Debris disk of HD 69830 | September 2005 | — | debris disk |
| Deuterium | 1931 | Harold Urey | isotope of hydrogen |
| Dorado Group | 1975 | Gérard de Vaucouleurs | galaxy group |
| Double empathy problem | 2000 | Damian Milton | psychological theory |
| Dunlop valve | 1891 | C. H. Woods | bicycle tire valve |
| Dysnomia | September 10, 2005 | Michael E. Brown | minor planet moon |