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A delay-action bomb is an aerial bomb designed to explode some time after impact, with the bomb's fuzes set to delay the explosion for times ranging from very brief to several weeks. Short delays are used to allow the bomb to penetrate before exploding: "a delay action bomb striking the roof of a tall building will penetrate through several ...
In a scene not appearing in the version shown on Netflix as of June 2024, an FBI bomb disposal unit disarms the Los Angeles nuclear bomb with only 12 seconds to spare. While they start to celebrate, the timer on the fourth nuclear bomb – hidden behind a nearby crate – hits zero.
The Mark 8 was an early earth-penetrating bomb (see nuclear bunker buster), intended to dig into the earth some distance prior to detonating. According to one government source, the Mark 8 could penetrate 22 feet (6.7 m) of reinforced concrete, 90 feet (27 m) of hard sand, 120 feet (37 m) of clay, or 5 inches (13 cm) of hardened armor-plate steel.
The four-minute warning was a public alert system conceived by the British Government during the Cold War and operated between 1953 and 1992. The name derived from the approximate length of time from the point at which a Soviet nuclear missile attack against the United Kingdom could be confirmed and the impact of those missiles on their targets.
February 13, 1950: a Convair B-36B crashed in northern British Columbia after jettisoning a Mark IV atomic bomb. This was the first such nuclear weapon loss in history. The accident was designated a "Broken Arrow"—an accident involving a nuclear weapon, but which does not present a risk of war. Experts believe that up to 50 nuclear weapons ...
The Soviet Union tests its first atomic bomb, the RDS-1, officially starting the nuclear arms race. 1953 2 23:58 −1 The United States tests its first thermonuclear device in November 1952 as part of Operation Ivy, before the Soviet Union follows suit with the Joe 4 test in August. This remained the clock's closest approach to midnight (tied ...
The 1961 Goldsboro B-52 crash was an accident that occurred near Goldsboro, North Carolina, United States, on 24 January 1961.A Boeing B-52 Stratofortress carrying two 3.8-megaton Mark 39 nuclear bombs broke up in mid-air, dropping its nuclear payload in the process.
The B28, originally Mark 28, was a thermonuclear bomb carried by U.S. tactical fighter bombers, attack aircraft and bomber aircraft.From 1962 to 1972 under the NATO nuclear weapons sharing program, American B28s also equipped six Europe-based Canadian CF-104 squadrons known as the RCAF Nuclear Strike Force.