701 BC - King Hezekiah of Judah, backed by Egypt, revolts against king Sennacherib of Assyria. Sennacherib sacks many Palestinian cities, but fails in his attempt to take Jerusalem
... the gyro will also be accelerated to a smaller extent by the slipping friction.
The device is covered by US patents 3,726,146 (1973) and 5,353,655 (1994) by L.A. ...