About 4.7 square miles.
The first atomic bomb, dropped on Hiroshima in 1945, leveled an area of about 4.7 square miles.
Trinity is usually estimated at 20 kilotons.
Who was the first black appointed to the US commission on Atomic Energy
J. Robert Oppenheimer was the first American physicist in charge of the development of the first atomic bomb during the Manhattan Project in World War II.
Ammonia clock invented in 1948 by US National Bureau of Standards.
4.7 square miles of Hiroshima were destroyed.
the first atomic bomb leveled nothing. That was exploded at the Trinity test site. The first bomb used in war was at Hiroshima Japan, and pretty much destroyed everything in a 3 mile radius. That is just over 7 square miles.
The first atomic bomb, dropped on Hiroshima in 1945, leveled an area of about 4.7 square miles.
Hiroshima, august 6, 1945
The bomb dropped on Hiroshima totally destroyed everything in a 1.6 km radius, a total of 12 km2 was destroyed. 80 000 people were killed by the blast and resulting firestorm, with another 80 000 dieing later from after effects.
There have only been two. So far. The first was Hiroshima.
Nagasaki (Japan), 9 August 1945
US estimates suggest that 4.7 square miles of Hiroshima were destroyed.
It destroyed approx 4.7 square miles of Hiroshima.
The first test was July 16, 1945 in Alamogordo, New Mexico. The Atomic bomb was also used to end Hiroshima on August 6, 1945 & to obliterate Nagasaki on August 9, 1945.
Yes, hydrogen is the lightest element on the periodic table. It is the first element, with an atomic number of 1 and an atomic mass of approximately 1.008 atomic mass units.
Nagasaki (Japan): 9 August 1945.