Adam D'Angelo | Quora

Adam D'Angelo attended the California Institute of Technology where he majored in computer science. He was the Chief Technology Officer at Facebook before co-founding Quora in June of 2009.

      

Stephen Wolfram | Wolfram Alpha

image credit: Ernie Branson/Wikimedia CommonsStephen Wolfram was born on August 29, 1959 in London, England. Wolfram received a Ph. D. in particle physics from the California Institute of Technology. He is founder and CEO of Wolfram Research, creator of Mathematica, A New Kind of Science, and Wolfram Alpha a computational data engine that was launched May 16, 2009.