Decades: 1150s 1160s 1170s 1180s 1190s - 1200s - 1210s 1220s 1230s 1240s 1250s
Years: 1196 1197 1198 1199 1200 - 1201 - 1202 1203 1204 1205 1206
Births
Deaths
... force is essential for the device's operation, the groove must not be lubricated. The acceleration of the gyroscope is best when the precession of the gyroscope i ...