John Archibald Wheeler

John Archibald Wheeler (July 9, 1911April 13, 2008) was an American theoretical physicist. He was known for his interest in general relativity in the United States. Wheeler also worked with Niels Bohr in explaining the basic principles behind nuclear fission. 
He is best known for using the term "black hole" and for inventing the terms "quantum foam", "neutron moderator", "wormhole" and "it from bit", and for hypothesizing the "one-electron universe".
On April 13, 2008, Wheeler died of pneumonia at the age of 96 in Hightstown, New Jersey.