Albert Einstein

The man who known for his equation E = mc^2

Image of Albert Einstein
Albert Einstein is also known for his discovery of the photoelectric effect, for which he won the Nobel Prize for Physics in 1921.

Here's a time line of Albert Einstein life:

“Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.”

-- Indian Prime Minister Manmohan Singh

If you have time, you should read more about this incredible human being on his Wikipedia entry.