Constantinus, pope from 708 to 715, was a Syrian by birth and was consecrated pope on March 25, 708. He was eager to assert the supremacy of the papal see. At the command of the emperor Justinian II he visited Constantinople. He died on the April 9, 715.
... brake the spinning gyroscope, with a maximum effect when the axis starts "rolling" inside the groove. (Compare with graphic below.) Since this friction force is essential ...