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Comparative fireball radii for a selection of nuclear weapons. [citation needed] Contrary to the image, which may depict the initial fireball radius, the maximum average fireball radius of Castle Bravo, a 15-megatonne yield surface burst, is 3.3 to 3.7 km (2.1 to 2.3 mi), [6] [7] and not the 1.42 km displayed in the image.
It will occur only when the fireball is actually in the individual's field of vision and would be a relatively uncommon injury. Retinal burns may be sustained at considerable distances from the explosion. The height of burst and apparent size of the fireball, a function of yield and range will determine the degree and extent of retinal scarring.
The adjacent photograph shows two unusual phenomena: bright spikes projecting from the bottom of the fireball, and the peculiar mottling of the expanding fireball surface. The surface of the fireball, with a temperature over 20,000 Kelvin , emits huge amounts of visible light radiation , more than 100 times the intensity at the Sun's surface.
The program will calculate the number of casualties based on how many people live in the selected city and the amount of injuries. The project is supported by the College of Arts and Letters at ...
Note that these are only for the fireball component of the explosion — radiation, blast, and heat would extend far beyond these distances (i.e. for the Tsar Bomba, anyplace with 6.56 km would receive 500 rems of radiation, there would be near total fatalities for the air blast within 9.95 km, structural damage at 26.26 km, and third-degree ...
Nuclear fission separates or splits heavier atoms to form lighter atoms. Nuclear fusion combines lighter atoms to form heavier atoms. Both reactions generate roughly a million times more energy than comparable chemical reactions, making nuclear bombs a million times more powerful than non-nuclear bombs, which a French patent claimed in May 1939.
English: Diameter and temperature vs. time of the fireball of a 20 kiloton nuclear air burst (near sea-level). Self-generated fit of curves in Glasstone & Dolan, The Effects of Nuclear Weapons (1977).
A nuclear explosion is an explosion that occurs as a result of the rapid release of energy from a high-speed nuclear reaction.The driving reaction may be nuclear fission or nuclear fusion or a multi-stage cascading combination of the two, though to date all fusion-based weapons have used a fission device to initiate fusion, and a pure fusion weapon remains a hypothetical device.