One of the most excellent persons ever lived is Charles Kuen Kao, GBM, KBE, FRS, FREng. Charles K. Kao was born in China sub nation of Hong Kong. However, this great man later rose to acquire other nationalities. He is presently a Briton and an American. But, that is not what made the difference. Charles Kuen Kao is one of the most outstanding electrical engineers and physicists.