Prof. Yang Chen Ning was co-recipient of the physics award of 1957 with Dr. Lee Tsung Dao. The discoveries of the two young Chinese physicists proved the invalidity of the principle of the conservation of parity, an accepted and universal law of physics, and created a spirit of doubt and skepticism in the scientific world concerning the universality of all the great conservation laws.
On Wednesday afternoon, December 30, 1964, at the invitation of the Chinese University, he gave a public lecture on “What is Modern High Energy Physics” in the Concert Hall of the City Hall. The Hall, with its seating accommodation for 1400, was packed to capacity long before the start of the lecture. Thousands had to be turned away. It was an occasion that will long be remembered here in Hong Kong and cherished in the hearts of all Chinese.