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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 ...
These devices would detonate the bomb if it was moved in any way. Typically, the safety-arming device used was a clockwork Memopark timer, which armed the bomb up to 60 minutes after it was placed [92] by completing an electrical circuit supplying power to the anti-handling
The briefcase bomb used in the July 20 plot used a captured British pencil detonator inserted into a block of British plastic explosives weighing approximately two pounds. The bomb was set to 30 minutes and detonated as planned, but Hitler survived with minor injuries. Stauffenberg could not prepare the second block, though. He got rid of it ...
Nuclear bomb designed to fit inside a suitcase. 1950s Thermometric bomb: Also called a vacuum bomb, or aerosol bomb, this explosive disperses a cloud of gas or liquid. Time bomb: A bomb that is triggered by the timer. Trinitrotoluene: Commonly known as TNT. 1863 Julius Wilbrand: Germany: Unguided bomb: An air-craft dropped bomb that lacks a ...
Proximity fuse MK53 removed from shell, circa 1950s. A Proximity Fuse (also VT fuse [1] [2] [3] or "variable time fuze") is a fuse that detonates an explosive device automatically when it approaches within a certain distance of its target.
Marzouk was found to be carrying 9.5 pounds (4.3 kg) of Semtex, several packets of TNT, 10 detonators, and an electronic timer—a so-called MST-13 timer—with the word Mebo printed on it. DERA's timer fragment, which was subsequently designated as PT/35(b), would eventually lead detectives via its Swiss manufacturer to Abdelbaset al-Megrahi.
The bomb can be triggered using a simple electronic device such as a digital watch, garage door opener, cell phone, pager, kitchen timer, or alarm clock. [ 1 ] [ 3 ] The power of the explosion depends on the size of the pressure cooker and the amount and type of explosives used.
Laydown delivery is a mode of delivery found in some nuclear gravity bombs: the bomb's descent to the target is slowed by parachute so that it lands on the ground without detonating. The bomb then detonates by timer some time later. [1] Laydown delivery requires the weapon to be reinforced so that it can survive the force of impact. [2]