What is a nuclear weapon?

Nuclear weapons are weapons that use the huge energy released instantly by self-sustaining nuclear fission or fusion reaction to produce explosions and have large-scale destructive effects.

Nuclear weapons are also called nuclear weapons or atomic weapons. In a broad sense, nuclear weapons refer to nuclear weapon systems with operational capabilities, including throwing or launching systems. Nuclear weapons usually refer to nuclear weapons in a narrow sense, that is, nuclear bombs composed of nuclear warheads, guidance, penetration and other devices installed in the shell of warheads. The main body of a nuclear warhead is a nuclear explosive device.

Extended information nuclear weapons are the most destructive weapons ever manufactured by mankind. The destructive effect of nuclear weapons is caused by various destructive factors transformed from the huge energy released at the moment of explosion.

These destructive factors can be divided into two categories: the first category, which lasts only tens of seconds, is called instantaneous destructive factors, including light radiation, shock wave, early nuclear radiation, nuclear electromagnetic pulse and so on; The second action time can last for several days or even longer, mainly referring to the radioactive pollution of explosion products.

In various international forums, countries around the world have made a lot of efforts on nuclear weapons. Everyone agrees that nuclear weapons have a special responsibility for maintaining the international security environment. During and after the Cold War, the two superpowers reached many agreements on reducing the danger of nuclear war, which greatly reduced the threat of nuclear war.

As the basis of all disarmament agreements, multilateral agreements on nuclear weapons and non-proliferation were first signed in 1968 and came into force in 1970. The Treaty on the Non-Proliferation of Nuclear Weapons is the cornerstone of global non-proliferation of nuclear weapons and the fundamental guarantee for seeking nuclear disarmament. In 2000, the Review Conference of the Treaty on the Non-Proliferation of Nuclear Weapons adopted a final resolution, demanding that countries possessing nuclear weapons "bear the responsibility of … with a view to completely shutting down their nuclear factories".

References:

Baidu encyclopedia-nuclear weapons