Adrian Metius 9th Dec 1571-26th Sept 1635
Adrian Metius was born at Alkmaar in Holland; he was a pupil of Tycho Brahe, he later became an astronomer, mathematician and military engineer. He made considerable improvements to the astronomical instruments of his time.
In 1624 he wrote ‘De usu Globi Coelestis’ containing a description of a 7 feet iron radius mounted on a universal bearingwith sights at both ends. He died at Frankfurt in 1635.