John I (1350-1395), king of Aragon, was the son of Peter IV. and his third wife Eleanor of Sicily[?]. He was born on December 27 1350, and died by a fall from his horse, like his namesake, cousin and contemporary of Castile. He was a man of insignificant character, with a taste for artificial verse.
... is that the axis of a spinning gyroscope will resist a force applied to it and will start rotating perpendicular to the force applied. This is why spinning gyro tops will ...