Ray Charles | Ray Bradbury | X-ray | Man Ray | Satyajit Ray | Stevie Ray Vaughan | Ray Milland | Ray Liotta | Ray Davies | Sugar Ray Leonard | laser | Billy Ray Cyrus | Ray Stevens | Blu-ray Disc | Ray Winstone | Ray Kurzweil | X-ray crystallography | Ray Brown (musician) | Ray Bolger | Ray Mears | Sugar Ray Robinson | Ray Anderson | Nicholas Ray | Lexemuel Ray Hesler | Sugar Ray | Ray | Ray Manzarek | Ray Brown | Ray Anderson (musician) | Ted Ray |
Project Excalibur was a United States government nuclear weapons research program to develop a nuclear pumped x-ray laser as a directed energy weapon for ballistic missile defence.