A zipper, zip, fly, or zip fastener, formerly known as a clasp locker, is a commonly used device for binding the edges of an opening of fabric or other flexible material, such as on a garment or a bag.
invented by James Blyth
A wind turbine is a device that converts the wind’s kinetic energy into…
invented by Moritz Von Jacobi
An electric motor is an electrical machine that converts electrical energy into…
invented by Hanaoka Seishu
General anaesthetics (or anesthetics, see spelling differences) are often…
invented by Alexander Parkes
Celluloids are a class of materials produced by mixing nitrocellulose and…
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