The physicist Richard Feynman died at the age of 69. Here is all you want to know, and more!
Biography - A Short Wiki
American theoretical physicist who worked on electrodynamics and contributed to the development of the atomic bomb as a part of the Manhattan Project. He received the Nobel Prize in Physics in 1965 for his work in developing quantum electrodynamics.
His father encouraged both him and his sister, who also became a physicist, to challenge conventional wisdom.