Centuries: 2nd century - 3rd century - 4th century
Decades: 240s 250s 260s 270s 280s - 290s - 300s 310s 320s 330s 340s
Years: 286 287 288 289 290 - 291 - 292 293 294 295 296
Births
Deaths
... for the device's operation, the groove must not be lubricated. The acceleration of the gyroscope is best when the precession of the gyroscope is supported and ...