James Roger Angel (born Feb 7, 1941) turns 80 on this day. A Fellow of the Royal Society and the National Academy of Sciences, Roger is an astronomer at the University of Arizona Steward Observatory with notable research on the optical and X-ray polarization of Seyfert galaxies and quasars.
His greatest fame, however, comes from his invention of the “spin cast” technique for making giant telescope mirrors, now carried out at the Richard F. Caris Mirror Lab at Arizona, for which he won the Kavli Prize in 2010. The VATT mirror was the first made via his technique.
Read a Biography James Roger Angel from Royal Society: https://royalsociety.