Michio Kaku

Dr. Michio Kaku is a theoretical physicist, best-selling author, and popularizer of science. He’s the co-founder of string field theory (a branch of string theory), and continues Einstein’s search to unite the four fundamental forces of nature into one unified theory.

Website:
http://www.mkaku.org
http://www.facebook.com/michiokaku
https://www.twitter.com/michiokaku