Nuclear war in Middle-east Or space ?
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Friend Abdullah
Nov 14, 2012, 9:54:54 PM11/14/12
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http://en.wikipedia.org/wiki/Effects_of_nuclear_explosions
Electromagnetic pulse
Main articles: Electromagnetic pulse and Geomagnetically induced current
Gamma rays from a nuclear explosion produce high energy electrons through Compton scattering. For high altitude nuclear explosions, these electrons are captured in the Earth's magnetic field at altitudes between twenty and forty kilometers where they interact with the Earth's magnetic field to produce a coherent electromagnetic pulse (EMP) which lasts about one millisecond. Secondary effects may last for more than a second.
The pulse is powerful enough to cause moderately long metal objects (such as cables) to act as antennas and generate high voltages due to interactions with the electromagnetic pulse. These voltages can destroy unshielded electronics. There are no known biological effects of EMP. The ionized air also disrupts radio traffic that would normally bounce off the ionosphere.
Electronics can be shielded by wrapping them completely in conductive material such as aluminum foil; however, the effectiveness of the shielding may be less than perfect. Proper shielding is a complex subject due to the large number of variables involved. Semiconductors, especially integrated circuits, are extremely susceptible to the effects of EMP due to the close proximity of the PN junctions, but this is not the case with thermionic tubes (or valves) which are relatively immune to EMP. A Faraday cage doesn't offer protection from the effects of EMP unless the mesh is designed to have holes no bigger than the smallest wavelength emitted from a nuclear explosion.
Large nuclear weapons detonated at high-altitudes also cause geomagnetically induced current in very long electrical conductors. The mechanism by which these geomagnetically induced currents are generated is entirely different from the gamma ray induced pulse produced by Compton electrons.
--
slm and good outcome be with us from Almighty, see future of "Coming World", http://english.aljazeera.net/watch_now
--------------------------------------
the light is one,
when it arrives the houses,
it takes
a hundred shadows,
lay down the walls
and it becomes one again
from Maulana Jalaluddin Rumi, Saint of 12th.Century , joy with Almighty
http://www.youtube.com/watch?v=8ch0JdW2bn0&feature=player_embedded
Electromagnetic pulse
Main articles: Electromagnetic pulse and Geomagnetically induced current
Gamma rays from a nuclear explosion produce high energy electrons through Compton scattering. For high altitude nuclear explosions, these electrons are captured in the Earth's magnetic field at altitudes between twenty and forty kilometers where they interact with the Earth's magnetic field to produce a coherent electromagnetic pulse (EMP) which lasts about one millisecond. Secondary effects may last for more than a second.
The pulse is powerful enough to cause moderately long metal objects (such as cables) to act as antennas and generate high voltages due to interactions with the electromagnetic pulse. These voltages can destroy unshielded electronics. There are no known biological effects of EMP. The ionized air also disrupts radio traffic that would normally bounce off the ionosphere.
Electronics can be shielded by wrapping them completely in conductive material such as aluminum foil; however, the effectiveness of the shielding may be less than perfect. Proper shielding is a complex subject due to the large number of variables involved. Semiconductors, especially integrated circuits, are extremely susceptible to the effects of EMP due to the close proximity of the PN junctions, but this is not the case with thermionic tubes (or valves) which are relatively immune to EMP. A Faraday cage doesn't offer protection from the effects of EMP unless the mesh is designed to have holes no bigger than the smallest wavelength emitted from a nuclear explosion.
Large nuclear weapons detonated at high-altitudes also cause geomagnetically induced current in very long electrical conductors. The mechanism by which these geomagnetically induced currents are generated is entirely different from the gamma ray induced pulse produced by Compton electrons.
--
slm and good outcome be with us from Almighty, see future of "Coming World", http://english.aljazeera.net/watch_now
--------------------------------------
the light is one,
when it arrives the houses,
it takes
a hundred shadows,
lay down the walls
and it becomes one again
from Maulana Jalaluddin Rumi, Saint of 12th.Century , joy with Almighty
http://www.youtube.com/watch?v=8ch0JdW2bn0&feature=player_embedded
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