U.S. Scientific Advances

World War II

U.S. Scientific Advances1941Roosevelt

created Office of Scientific Research and Development (OSRD)

Brought scientists into war effort

U.S. Scientific AdvancesAdvances in:

Radar Sonar Pesticides to fight

insects World War I, many

soldiers in the trenches had LICE

Penicillin

The Atomic BombOSRD secret

development of the atomic bomb

WHY?

1939, Germans succeeded in splitting uranium atoms

Einstein letter to FDR warning that Germans could construct WMD

The Manhattan Project1942, OSRD created

the Manhattan Project to quickly create atomic bomb

Early development at Columbia University in Manhattan

The Manhattan ProjectSo secret, Vice

President Truman didn’t know until he became president when FDR passed away

600,000 workers

July 16, 1945First test

Alamogordo, New Mexico