Dec 3, 2008

Rebecca | Compare and Contrast

1938: The first nuclear fission of uranium is achieved by German scientists. This is the physical reaction that leads to the nuclear bomb.

1945: Nuclear bombs are dropped on the Japanese cities Hiroshima and Nagasaki, hastening the end of World War II by killing nearly two hundred thousand people.

Today: After decades of international fear about the devastation that nuclear weapons can cause, no other nuclear bombs have been used during wartime.

1938: Cancer is barely understood. The first cancer-causing agents, known as "carcinogens," have been isolated...