Decades: 1400s BC 1390s BC 1380s BC 1370s BC 1360s BC - 1350s BC - 1340s BC 1330s BC 1320s BC 1310s BC 1300s BC
Significant People
... takes a while until one finds the "rolling" point, but the gyro will also be accelerated to a smaller extent by the slipping friction. The device is ...