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A tripwire is a passive triggering mechanism. Typically, a wire or cord is attached to a device for detecting or reacting to physical movement. Military applications
The prologue describes Victor Truman "Hook" Hobie's carefully planned escape route in the event of somebody discovering his "really big, well-guarded secret." His "early-warning system" consists of geographically located tripwires that will warn him that he has been discovered.
A hook being used for demining. Grappling hooks are used by combat engineers to breach tactical obstacles. When used as such, the grappling hook is launched in front of an obstacle and dragged backwards to detonate tripwire-fused land mines, and can be hooked on wire obstacles and pulled to set off booby traps on the wire.
Bad Luck and Trouble is the eleventh book in the Jack Reacher series written by Lee Child. [1] [2] It was published in 2007, and written in the third person.The title is derived from the song lyrics by singer Albert King "Born Under a Bad Sign".
The mine consists of a cast iron body in a thin steel sleeve. A central fuze well on the top of the mine is normally fitted with a pronged M605 pressure/tension (tripwire) fuze. Sufficient pressure on the prongs or tension on an attached tripwire causes the release of a striker.
Hook and loop in the early 1960s looked like it had been made from left-over bits of cheap fabric, an unappealing aspect for clothiers. [10] The first notable use for Velcro® brand hook and loop came in the aerospace industry, where it helped astronauts manoeuvre in and out of bulky space suits. Eventually, skiers noted the similar advantages ...
The Claymore can also be activated by a booby-trap tripwire firing system for use in area denial operations. The Claymore fires steel balls out to about 100 m (110 yd) within a 60° arc in front of the device. It is used primarily in ambushes and as an anti-infiltration device against enemy infantry. It is also used against unarmored vehicles.
It consists of tripwire around the area, linked to one or more flares. When the tripwire is triggered, as by someone unsuspectingly disturbing it, the flare is activated and begins burning. The light from the flare simultaneously warns that the perimeter may have been breached and also gives light for investigating. [2]