Kim Sang Wook is a South Korean physicist, author and professor. He graduated from Munil High School and later obtained a bachelor's, master's and PhD degrees in Physics, all from the Korea Advanced Institute of Science and Technology (KAIST). He is currently appearing on a few TV shows and also working as a professor at Kyung Hee University. He was interested in physics since an early age and read many books about Quantum Mechanics as that topic always intrigued him and has gained popularity on Youtube with easy-to-understand lectures on complicated subjects.
(Source: Namu Wiki)