Physicist Chien-Shiung Wu said, “… it is shameful that there are so few women in science… In China there are many, many women in physics. There is a misconception in America that women scientists are all dowdy spinsters. This is the fault of men. In Chinese society, a woman is valued for what she is, and men encourage her to accomplishments yet she remains eternally feminine.” Women scientists made a huge contribution to the development of the atomic bomb in the Manhattan Project. The Manhattan Project was a top secret federal project from 1939 to 1946 designed to create a powerful bomb. It was initiated by President Franklin Delano Roosevelt. The direct cause for the creation of this project was that Albert Einstein voiced his concerns of the possibility that Germany would use their new discovery of breaking apart uranium atoms to create a devastating weapon. President Roosevelt then took immediate action and created the Manhattan Project. It was designed to accelerate the process of creating a powerful bomb in the United States so that they would be able to use this weapon against their enemies, Japan and Germany. Most of the people who worked for the Manhattan Project were not aware of what they were building for this top-secret project. Women scientists were hired for the Manhattan Project due to labor shortages , as most men were away fighting in the army. The United States needed as many workers as possible to be participating in the war effort, and as a result, employers had no choice but to hire women. Though this was not done in the spirit of equality, women took advantage of this opportunity and made great scientific contributions, without which the atomic bomb would not have been developed.