Blast valve
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A blast valve is used to protect a shelter, such as a fallout shelter or bunker, from the effects of sudden outside air pressure changes. A nuclear weapon creates a shock wave, which may produce sudde
PV-KK Blast Valve used to protect against peak reflected overpressures up to 15bars (215psi).
PV-KK Blast Valves embedded in massive concrete walls of a hardened shelter / bunker.
Hollow steel ball serving as a blast valve for the ventilating system of a hardened shelter.
Nuclear weapon
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A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either nuclear fission or a combination of fission and nuclear fusion reactions, producing a nuclear
The Trinity test of the Manhattan Project was the first detonation of a nuclear weapon, which led J. Robert Oppenheimer to recall verses from the Hindu scripture Bhagavad Gita: "If the radiance of a thousand suns were to burst at once into the sky, that would be like the splendor of the mighty one" ... "I am become Death, the destroyer of worlds".
Edward Teller, often referred to as the "father of the hydrogen bomb"
Soviet OTR-21 Tochka missile. Capable of firing a 100-kiloton nuclear warhead a distance of 185 km
The first nuclear weapons were gravity bombs, such as the "Fat Man" weapon dropped on Nagasaki, Japan. They were large and could only be delivered by heavy bomber aircraft