History of the United States 6–3 decision in Korematsu v. United States Supreme Court case. Research and development took flight as well, best seen in the Manhattan Project, a secret effort to harness nuclear fission to produce highly destructive atomic bombs. From 1942 to 1946, the project was under the direction of Major General Leslie Groves of the U.S. Army Corps of Engineers. Nuclear physicist J. Robert Oppenheimer was the director of the Los Alamos Laboratory that designed the actual bombs. The first nuclear device ever detonated was an implosion-type bomb at the Trinity test, conducted at New Mexico's Alamogordo Bombing and Gunnery Range on
Nagasaki Atomic Bomb Museum glass, burnt clothing, a lunchbox with its contents still charred inside of it, and a helmet with the remains of a victim’s skull on the inner surface. Section B shows damage caused by the radiation, damages caused by the blast, appeals of the atomic bomb survivors, and the rescue and relief activities which were carried out. After viewing the city scene, museum visitors are invited to think about issues related to war and nuclear non-proliferation. This section of the museum contains the political sections entitled "The Road to the Atomic Bombing" and "The War between China and Japan and the