Add Yahoo as a preferred source to see more of our stories on Google. Einstein considered his famous message to Roosevelt his life's 'one great mistake.' “Certain aspects of the situation which has ...

“If I had known that the Germans would not succeed in constructing an atom bomb, I never would have moved a finger,” wrote Albert Einstein in his 1950 book Out of My Later Years. He was speaking about ...

In August of 1939, Albert Einstein sent a letter to U.S. President Franklin Delano Roosevelt, advising him that the process of nuclear fission could potentially be used to create a powerful atomic ...