Claim: Prior to being an assistant professor at the McMath-Hulbert Solar Observatory from 1946 to 1948, Arthur Adel was a faculty member in physics at the University of Michigan from 1942 to 1946.
Evidence: During World War II, he worked for the US Navy in Washington, DC, de-gaussing submarines, and from 1942 to 1946 was a faculty member in physics at the University of Michigan. From 1946 to 1948 he was an assistant professor at the McMath-Hulbert Solar Observatory, then operated by the university, while also studying the effective radiation temperature of the ozone layer for the US Air Force at a base in New Mexico.