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The documents are understood to relate to the Mebo MST-13 timer that allegedly detonated the PA103 bomb. [ 23 ] In January 2009, it was reported that although Megrahi's second appeal against conviction was scheduled to begin on 27 April 2009 the hearing could last as long as 12 months because of the complexity of the case and volume of material ...
A time bomb's timing mechanism may be professionally manufactured either separately or as part of the device, or it may be improvised from an ordinary household timer such as a wind-up alarm clock, wrist watch, digital kitchen timer, or notebook computer. The timer can be programmed to count up or count down (usually the latter; as the bomb ...
Instead of heating up the explosive, the EBW detonator wire is heated so quickly by the high firing current that the wire actually vaporizes and explodes due to electric resistance heating. [20] That electrically-driven explosion causes the low-density initiating explosive (usually PETN ) to detonate, which in turn detonates a higher density ...
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However, some electronic delays developed by IRA technicians could be set to accurately detonate a bomb weeks after it was hidden, which is what happened in the Brighton hotel bomb attack of 1984. Initially, bombs were detonated either by timer or by simple command wire. Later, bombs could be detonated by radio control.
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In modern grenades, a pre-formed fragmentation matrix inside the grenade is commonly used, which may be spherical, cuboid, wire or notched wire. Most anti-personnel (AP) grenades are designed to detonate either after a time delay or on impact. [1]
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