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His assistant, Second Lieutenant Morris R. Jeppson, removed the safety devices 30 minutes before reaching the target area. [133] The Hiroshima atom bomb cloud 2–5 minutes after detonation [134] During the night of 5–6 August, Japanese early warning radar detected the approach of numerous American aircraft headed for the southern part of Japan.
The bomb was designed within a case of a 2.5 kg bomb, with a case weight of 1.5 kg and 0.62 kg of explosives. The Ilyushin Il-2 ground attack aircraft could carry 280 PTAB bombs directly on the bomb-bay folds, or 4x48 in four cassettes.
The name of the bomb consists of the type of bomb (FAB-250M-46), its caliber in kilograms (FAB-250M-46), model by year of adoption (FAB-250M-46 - model 1946) and additionally (not always) an indication of its mass - if it differs significantly from the caliber (OFAB-250-270, FAB-1500-2600TS) and/or the design feature of the bomb or its production technology (FAB-500T - heat-resistant ...
Specifically, to count as a legitimate view, a user must intentionally initiate the playback of the video and play at least 30 seconds of the video (or the entire video for shorter videos). Additionally, while replays count as views, there is a limit of 4 or 5 views per IP address during a 24-hour period, after which point, no further views ...
The Hiroshima Peace Memorial (広島平和記念碑, Hiroshima Heiwa Kinenhi), originally the Hiroshima Prefectural Industrial Promotion Hall, and now commonly called the Genbaku Dome, Atomic Bomb Dome or A-Bomb Dome (原爆ドーム, Genbaku Dōmu), is part of the Hiroshima Peace Memorial Park in Hiroshima, Japan and was designated a UNESCO World Heritage Site in 1996.
The explosion has been described as "the largest planned explosion before testing began for the atomic bomb". [18] Rubble from the detonation was used in 1890 to fill the gap between Great Mill Rock and Little Mill Rock, merging the two into a single island, Mill Rock .
A barrel bomb is an improvised unguided bomb, sometimes described as a flying IED (improvised explosive device). They are typically made from a large barrel -shaped metal container that has been filled with high explosives , possibly shrapnel , oil or chemicals as well, and then dropped from a helicopter or aeroplane. [ 1 ]
Calculations demonstrate that one megaton of fission, typical of a two-megaton H-bomb, will create enough beta radiation to blackout an area 400 kilometres (250 miles) across for five minutes. Careful selection of the burst altitudes and locations can produce an extremely effective radar-blanking effect. [ 20 ]