Decades: 1260s 1270s 1280s 1290s 1300s - 1310s - 1320s 1330s 1340s 1350s 1360s
Years: 1312 1313 1314 1315 1316 - 1317 - 1318 1319 1320 1321 1322
Births
Deaths
... of the gyroscope is best when the precession of the gyroscope is supported and amplified by wrist motion. It takes a while until one finds the "rolling" point, but the ...