Barbed wire, also known as barb wire, occasionally corrupted as bobbed wire or bob wire, is a type of steel fencing wire constructed with sharp edges or points arranged at intervals along the strands. It is used to construct inexpensive fences and is used atop walls surrounding secured property. It is also a major feature of the fortifications in trench warfare (as a wire obstacle).
invented by Edwin Budding
A lawn mower (also known as a mower, grass cutter or lawnmower) is a machine…
invented by James Clerk Maxwell
Color photography is photography that uses media capable of capturing and…
invented by Moritz Von Jacobi
Electrotyping (also galvanoplasty) is a chemical method for forming metal parts…
invented by James Blyth
A wind turbine is a device that converts the wind’s kinetic energy into…
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