A watch is a portable timepiece intended to be carried or worn by a person. It is designed to keep a consistent movement despite the motions caused by the person’s activities. A wristwatch is designed to be worn around the wrist, attached by a watch strap or other type of bracelet, including metal bands, leather straps or any other kind of bracelet. A pocket watch is designed for a person to carry in a pocket, often attached to a chain.
invented by Louis Pasteur
Pasteurization or pasteurisation is a process in which packaged and…
invented by Patrick Bell
A reaper is a farm implement or person that reaps (cuts and often also gathers)…
invented by Sir William Crookes
The Crookes radiometer (also known as a light mill) consists of an airtight…
invented by Alessandro Volta
The voltaic pile was the first electrical battery that could continuously…
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Inventions that changed the world
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