Who were the greatest scientists of the 20th century, other than Einstein, and why?

Question

I know most people will think of Einstein, but beyond him who contributed the most original ideas that have changed the way we see the world?

Answer 1

I had to look for this page because I had only ever seen it on TV and the magazine.  It's TIMEs top 100 scientists and thinkers of the 20th Century, and it gives a brief but good bio on each.  Hope it helps!!

http://www.time.com/time/time100/scienti...

Answer 2

Modesty forbids me to answer.