Search results
Results from the WOW.Com Content Network
It tested the first nuclear weapon on 16 July 1945 ("Trinity") at 5:30 am, and remains the only country to have used nuclear weapons in war, devastating the Japanese cities of Hiroshima and Nagasaki. The project expenditure through 1 October 1945 was reportedly $1.845–$2 billion, in nominal terms, [ 53 ] [ 54 ] roughly 0.8 percent of the US ...
RDS-27, 250 kiloton bomb, a 'boosted' fission bomb tested 6 November 1955. RDS-37, 3 megaton bomb, the first Soviet two-stage hydrogen bomb, tested 22 November 1955. RDS-220 Tsar Bomba an extremely large three stage bomb, initially designed as a 100-megaton-bomb, but was scaled down to 50 megatons for testing.
South Africa successfully built six nuclear weapons in the 1980s, but dismantled all of them in the early 1990s, shortly before the fall of the apartheid system. [23] So far it is the only nuclear-capable country to give up nuclear weapons, although several members of the Soviet Union did so during the collapse of the Soviet regime. North Korea ...
NATO countries have been taken aback by Russian President Vladimir Putin’s implied threats to use nuclear weapons against “ That bomb can contain a nuclear warhead for use in wartime.
e. Nuclear warfare, also known as atomic warfare, is a military conflict or prepared political strategy that deploys nuclear weaponry. Nuclear weapons are weapons of mass destruction; in contrast to conventional warfare, nuclear warfare can produce destruction in a much shorter time and can have a long-lasting radiological result.
Nuclear Weapons Archive – includes the nuclear weapon histories of many countries; NDRC Nuclear Notebook: Nuclear pursuits. Comparative table of the histories and arsenals of the five NPT-designated nuclear powers as of 1993. NuclearFiles.org Archived March 29, 2013, at the Wayback Machine Timeline- from Atomic Discovery to the 2000s (decade)
Nine countries have nuclear weapons, including the US and Russia.
This treaty is intended to limit the spread of nuclear weapons. To date, 189 countries have signed the treaty, including the five permanent members of the UN Security Council. Only India, Israel, Pakistan, and North Korea have not signed the treaty (as sovereign states).