Physicist known for his work the path integral formulation of quantum mechanics, the theory of quantum electrodynamics and the physics of the superfluidity of supercooled liquid helium. He was awarded the Nobel Prize in Physics in 1965. He also assisted in the development of the atomic bomb and was a member of the panel that investigated the Space Shuttle Challenger disaster. Ballpoint signature, “Richard P. Feynman,” on an off-white 4 x 6 card, with a clipped newspaper photo affixed above signature. In very fine condition. First one we have seen. Pre-certified John Reznikoff/PSA/DNA and RRAuction COA.
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