"A draisine (English: /dreɪˈziːn/) is a light auxiliary rail vehicle, driven by service personnel, equipped to transport crew and material necessary for the maintenance of railway infrastructure.
The eponymous term is derived from the German inventor Baron Karl Drais, who invented his Laufmaschine (German for "running machine") in 1817, which was called Draisine in German (vélocipède or draisienne in French) by the press. It is the first reliable claim for a practically used precursor to the bicycle, basically the first commercially successful two-wheeled, steerable, human-propelled machine, nicknamed hobby-horse or dandy horse." - (en.wikipedia.org 17.09.2020)
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