Brian Greene

Brian Randolph Greene (born February 9, 1962) is an American theoretical physicist and mathematician. He was a physics professor at Cornell University from 1990–1995 and has been a professor at Columbia University since 1996. Greene co-founded the World Science Festival in 2008 and currently serves as its chairman. His notable contributions include his work on mirror symmetry and describing the flop transition in string theory. Greene is also known for his popular science books, such as The Elegant Universe, The Fabric of the Cosmos, and The Hidden Reality, which have helped bring complex scientific concepts to a wider audience. He has made appearances on television shows like The Big Bang Theory and has acted in films like Frequency and The Last Mimzy.