Centuries: 2nd century - 3rd century - 4th century
Decades: 240s - 250s - 260s - 270s - 280s - 290s - 300s - 310s - 320s - 330s - 340s
Years: 290 291 292 293 294 295 296 297 298 299 300
... Wikipedia <<Up Contents Dennis Gabor Dennis Gabor (Gábor Dénes) (1900-1979) was a Hungarian physicist. He invented holography in 1947, for ...