Happy Birthday, Sir Isaac Newton

I opened my Google homepage today and saw the Google logo surrounded by apples. Hmmmm, Johnny Appleseed's birthday? Something do with my favorite computer? Nope, it is Isaac Newton's birthday! He is the one, legend holds, who figured out that things fall down, like apples, because of gravity. I have a love/hate relationship with gravity, but it is no fault of Mr. Newton. Happy Birthday, Sir Isaac Newton!