2) Szilard, Leo. The American HeritageŽ Dictionary of the English Language: Fourth Edition. 2000.
...A member of the Manhattan Engineering Project, he helped develop the first atomic bomb. Szilard was later opposed to the construction and use of all nuclear weapons...

3) 3244. Leo Szilard. Simpson s Contemporary Quotations. 1988
...NUMBER: 3244 AUTHOR: Leo Szilard QUOTATION: A scientist s aim in a discussion with his colleagues is not to persuade, but to clarify. ATTRIBUTION: On 1939 Columbia...

4) 3243. Leo Szilard. Simpson s Contemporary Quotations. 1988
...NUMBER: 3243 AUTHOR: Leo Szilard QUOTATION: We turned the switch, saw the flashes, watched for ten minutes, then switched everything off and went home. That night...

5) 124. Albert Einstein (1879-1955). Respectfully Quoted: A Dictionary of Quotations. 1989
...Albert Einstein (1879-1955) Some recent work by E. Fermi and L. Szilard, which has been communicated to me in manuscript, leads me to expect that the element uranium...

6) hydrogen bomb. The Columbia Encyclopedia, Sixth Edition. 2001
...has occurred, thus making it impractical to hide in shelters. This prompted physicist Leo Szilard to call it a "doomsday device" since it was capable of wiping out...