Daniel C. Tsui, Chinese-American physicist and academic, Nobel Prize laureate

Daniel Chee Tsui is an American physicist. He is currently serving as the Professor of Electrical Engineering, emeritus, at Princeton University. Tsui's areas of research include electrical properties of thin films and microstructures of semiconductors and solid-state physics.

The Nobel Prize in Physics is an annual award given by the Royal Swedish Academy of Sciences for those who have made the most outstanding contributions to mankind in the field of physics. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895 and awarded since 1901, the others being the Nobel Prize in Chemistry, Nobel Prize in Literature, Nobel Peace Prize, and Nobel Prize in Physiology or Medicine. Physics is traditionally the first award presented in the Nobel Prize ceremony.

February 28 is the 59th day of the year in the Gregorian calendar; 306 days remain until the end of the year.