American physical chemist whose pioneering work on isotopes earned him the Nobel Prize in Chemistry in 1934. He played a significant role in the development of the atom bomb, but may be most prominent for his contribution to theories on the development of organic life from non-living matter.
1.) R. L. Wysong (1976). "5: Origin of Proteins". The Creation-evolution Controversy (implications, Methodology and Survey of Evidence): Toward a Rational Solution. Wysong Institute. p. 75. ISBN 9780918112026. "Recently, at a seminar, Harold Urey, the noted scientist who won a Nobel prize for his experiments on the origin of life.... ...Dr. Urey, a somewhat outspoken confirmed atheist and evolutionist, answered:..."
2.) "Harold C. Urey". NNDB.com. Retrieved 18 July 2012.