Decades: 1230s 1240s 1250s 1260s 1270s - 1280s - 1290s 1300s 1310s 1320s 1330s
Years: 1282 1283 1284 1285 1286 - 1287 - 1288 1289 1290 1291 1292
Births
Deaths
... operation, the groove must not be lubricated. The acceleration of the gyroscope is best when the precession of the gyroscope is supported and amplified by wris ...