Albiruni
Muhammad ibn Ahmad abu Ryhan Albiruni was not just a good scientist but also a great trourist.

He was master of physics, geography, pharmacology and minerology, history of religions, indology, mathamatics and astronomy.

he knew that light is faster than sound . He stayed in India and studeid the knowledge of sanskrit and other thing from Hindu pandits. In his life of 75 years he wrote more than 150 Books.

George Sarton accepted Albiruni's book Kittabul - Qanoon - ul - Masoodi as a encyclnpedia of astronomy in his book Introduction to history of science.

Albiruni's biggest research was that "all physical laws are applicable with earth are also applicable with other planets".
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Image source : muslim-academy.com