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Credits: hollandphoto.eu
The bicycle, bike, or cycle is a pedal-driven, human-powered
vehicle with two wheels attached to a frame, one
behind the other. Invented in Europe in the 19th
century, the bicycle has become the world's most
popular vehicle with about 1.4 billion in use.
In addition to transport, bicycles also provide
a popular form of recreation, and have been adapted
for use in many other fields of human activity,
including children's toys, adult fitness, military
and police applications, courier services, and cycle
sports... |
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