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The US designed and successfully built two types of nuclear weapons in 1945: the MK-I gun assembly uranium atomic bomb and the MK-III implosion assembly plutonium atomic bomb.
It was decided that no test was needed for the MK-I due to its simplicity, but the MK-III was too complex to be sure it would work without testing. The MK-III was tested on July 16, 1945 (the bomb named Gadget) on the top of a 100 foot tall steel tower. Due to this test it was decided not to make any more MK-I atomic bombs (the uranium they used was much more expensive to produce than the plutonium used in the MK-III).
One MK-I (the bomb named Little Boy) was dropped on Hiroshima on August 6, 1945 followed by one MK-III (the bomb named Fatman) on Nagasaki on August 9, 1945. The Manhattan Project had plans and facilities to manufacture and drop 21 more MK-III type atomic bombs on Japan before the end of 1945, but Japan surrendered after the first two.
Los Alamos had finished one more MK-III (which would have been dropped on Japan sometime in late August) before the Japanese surrender message arrived in the US and shipped it to San Fransisco to be flown to Tinian island, but when Truman canceled further atomic bombing of Japan this weapon was returned to Los Alamos without having left the US.
What else can I help you with?
When did France get nuclear weapon?
they designed them, built the infrastructure and tested them.
Where was the first nuclear weapon detonated?
The first nuclear weapon was used on Hiroshima , Japan . The first nuclear bomb test was conducted in Alamogordo, New Mexico, on July 16, 1945 .
What you know about nuclear weapon?
the first nuclear weapon was issued in WW2 created by the americans in a chicargo squash court
Countries who acquired nuclear weapons?
Currently, nine states possess nuclear weapons.United States - Tested its first nuclear weapon in 1945Russia - Tested its first nuclear weapon in 1949United Kingdom - Tested its first weapon in 1952France - Tested its first weapon in 1960China - Tested its first weapon in 1964India - Tested its first weapon in 1974Pakistan - Tested its first weapon in 1998Israel - Acquired weapons sometime between 1967-1971North Korea - Tested its first weapon in 2009Four states have ended their nuclear programsSouth Africa - de-nuclearized in 1991Belarus, Ukraine, and Kazakhstan - Returned nuclear weapons to Russia in mid-1990s.Nuclear Aspirants, but no nuclear program or weaponsGermany, Canada, Libya, Japan, Argentina, Syria. Sweden, Egypt, South Korea, Switzerland, Iraq, TaiwanFuture nuclear states?IranSee, Peter Beckman et. al, Nuclear Weapons, Nuclear States, and Terrorism (2007), 41.
When did China get first nuclear weapon?
1964
What year did India detonated its first nuclear weapon?
India detonated it's first nuclear weapon on 1974at (POKRAN)a desert area in RAJASTHAN.
Where was the nuclear weapon invented?
London, by Leo Szilard. But it took 12 years and over $2,000,000,000 before the first ones could be built by the US.
What country developed the first nuclear weapon?
canada
What was created by the Manhattan Project?
The first Nuclear Weapon.
What is the meaning of nuclear weapon?
The meaning of the word nuclear weapon, is a weapon that has a nuclear warhead on it.
How did they built the nuclear weapon?
Read Richard Rhodes books:The Making of the Atomic BombDark Sun
What is the first nuclear weapon was made during World War 2?
The atomic bomb was the first nuclear weapon ever made during World war two and it was the first weapon that have been tested before Hiroshima was under attack.
