A glimpse into the mind of a Nobel Prize winner - this doodle was made by physicist
T.D. Lee during talks with Chen Ning Yang, while both were visiting scientists at Brookhaven National Laboratory in the US in 1956. Their discussions led to radical questioning of one of physics' basic principles and resulted in the duo being awarded the Nobel Prize in Physics in 1957 for discovering that the supposedly absolute law of parity conservation had been violated.