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Thatcher wasn't harmed, five others were killed and 31 were injured. A time bomb (or a timebomb, time-bomb) is a bomb whose detonation is triggered by a timer. The use or attempted use of time bombs has been for various purposes including insurance fraud, terrorism, assassination, sabotage and warfare.
1933 – Leó Szilárd realizes the concept of the nuclear chain reaction, although no such reaction was known at the time. He invented the idea of an atomic bomb in 1933 while crossing a London street in Russell Square. He patented it in 1934. (British patent 630,726)
The first atomic bombs dropped on Hiroshima and Nagasaki on August 6 and 9, 1945, respectively, were large, custom-made devices, requiring highly trained personnel for their arming and deployment. They could be dropped only from the largest bomber planes—at the time the B-29 Superfortress —and each plane could only carry a single bomb in ...
By the end of the war, planes such as the allied forces' Avro Lancaster were delivering with 50 yd (46 m) accuracy from 20,000 ft (6,100 m), ten ton earthquake bombs (also invented by Barnes Wallis) named "Grand Slam", which, unusually for the time, were delivered from high altitude in order to gain high speed, and would, upon impact, penetrate ...
The first nuclear weapons were gravity bombs, such as this "Fat Man" weapon dropped on Nagasaki, Japan. They were large and could only be delivered by heavy bomber aircraft A demilitarized, commercial launch of the Russian Strategic Rocket Forces R-36 ICBM; also known by the NATO reporting name: SS-18 Satan.
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Thunderclap bombs are employed by Song forces in a sneak attack on a Jin camp, killing 2000 men and 800 horses. [18] 1221: China: Iron casing bombs are employed by Jin troops in the siege of Qi Prefecture (Hubei). [32] 1227: China: The Wuwei Bronze Cannon, excavated in 1980, is dated to the Western Xia (1038–1227) period.
In 1915, the first propeller plane that could safely fire a machine gun through the propeller blades was invented. This led to later dogfights during World War I. [65] Tanks were also used for the first time during World War I, but they were often slow and unreliable at first. However, they did allow more mobility in the war.