Search results
Results from the WOW.Com Content Network
Barbed wire - Wikipedia ... Barbed wire
The barbed wire strands on the top of the signal fence activated an alarm when pulled or cut, alerting the border guards. The signal or "hinterland" fence (Signalzaun) was the first of the border fences, dividing the Sperrzone from the more heavily guarded protective strip (Schutzstreifen) adjoining the actual border.
The 1915 textbook Practical Electric Wiring describes the construction of the Western Union splice; short tie and long tie. The short tie splice has it being formed after stripping the insulation from a pair of wires for several inches, each, crossing the wires left over right as shown in figure part A; then, a hooked cross (figure part B) is formed holding the crossing point of the two wires ...
Dragon's teeth (fortification)
Wire obstacle. In the military science of fortification, wire obstacles are defensive obstacles made from barbed wire, barbed tape or concertina wire. They are designed to disrupt, delay and generally slow down an attacking enemy. During the time that the attackers are slowed by the wire obstacle (or possibly deliberately channelled into ...
Concertina wire - Wikipedia ... Concertina wire
Wiring party. Wiring parties, (or wiring sappers, cutters), were used during World War I on the Western Front as an offensive countermeasure against the enemy’s barbed wire obstacles. Though hazardous and stressful duty, work was done at night to repair, improve, and rebuild their own wire defences, while also sabotaging and cutting the enemy's.
Joseph Farwell Glidden (January 18, 1813 – October 9, 1906) was an American businessman and farmer. He was the inventor of the modern barbed wire. In 1898, he donated land for the Northern Illinois State Normal School in DeKalb, Illinois, which was renamed as Northern Illinois University in 1957.