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electromagnetic pulse

   Also found in: Acronyms, Wikipedia 0.10 sec.
electromagnetic pulse
n. Abbr. EMP
1. The pulse of intense electromagnetic radiation generated by a nuclear explosion.
2. A pulse of electromagnetic radiation emitted by certain devices such as citizen band radio and cellular phones.

electromagnetic pulse
A pulse of intense electromagnetic radiation generated by certain physical events, especially by a nuclear explosion. The pulse includes a continuous spectrum of low frequencies and can interfere with the operation of electrical equipment.

The electromagnetic radiation from a strong electronic pulse, most commonly caused by a nuclear explosion that may couple with electrical or electronic systems to produce damaging current and voltage surges. Also called EMP. See also electromagnetic radiation.


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And whose coverage is exposed if terrorists use electromagnetic pulse devices to disable thousands of circuit boards, affecting everything from traffic signals to airport control towers?
The new system was designed to function even in the case of an electromagnetic pulse and radiation following a nuclear blast, Gould said.
``Using an electromagnetic pulse device, such people could cause a near instantaneous and totally disruptive effect on the operations of the voting machines, particularly on the tapes, the disks, adjacent circuits and the operations of the voting machines.
 
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