The dandy horse, a derogatory term for what was first called a Laufmaschine (in German), then a vélocipède or draisienne (in French and then English), and then a pedestrian curricle or hobby-horse, is a human-powered vehicle that, being the first means of transport to make use of the two-wheeler principle, is regarded as the forerunner of the bicycle.
invented by Rudolf Diesel
The diesel engine, named after Rudolf Diesel, is an internal combustion engine…
invented by John Walker
A match is a tool for starting a fire. Typically, matches are made of small…
invented by Johann Nikolaus Von Dreyse
Bolt action is a type of manual firearm action that is operated by directly…
invented by Lucien B. Smith
Barbed wire, also known as barb wire, occasionally corrupted as bobbed wire or…
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