They were designed by the U.S. military, they are Hydrogen and atom bombs.
fat man and little boy
Little Boy was employed at Hiroshima and Fat Man at Nagasaki.
The two atomic bombs that were dropped on Japan were called "Fat Man" and "Little Boy".
little boy was on Hiroshima and fat man was on nagasaki.
Little boy was dropped over Hiroshima and fat boy was dropped over Nagasaki.
They were called Little Boy and Fat man. (see related question link below)
The fat man and the little boy are atomic bombs made during World War 2.
Little Boy was dropped on Hiroshima Fat Man was dropped on Nagasaki
'Little Boy' - Uranium whereas 'Fat Man' used Plutonium triggering devices .
Little boy - Hiroshima - 6 august 1945 Fat man - Nagasaki - 9 august 1945
Little boy blasted at 8.15 and fat man blasted at 11.02. Both times were am.
Little boy-9900 pounds Fat man-10,213 pounds