News tagged with bikes

Quad bikes a major source of trauma in Victoria

The significant trauma associated with quad bikes in Victoria has been highlighted in a University of Sydney co-authored study published in the Medical Journal of Australia today.

Sep 16, 2013
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Exercise performance enhanced with virtual partner

(HealthDay)—Exercise duration is improved by exercising with a virtual partner, especially with a moderately superior partner, according to a study published in the October issue of the Annals of Behavioral Me ...

Dec 14, 2012
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Sprint to fight fat

Men can significantly cut the visceral fat in their abdomen with one hour of interval sprinting per week instead of relying on seven hours of jogging a week for a similar result, according to new Australian research.

Jun 29, 2012
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7 of 10 commuters using Capital Bikeshare forgo helmet use

Cyclists in Washington, D.C. who use Capital Bikeshare for their daily commutes are much less likely to wear helmets than commuters on their own bikes. That is the finding from an observational study conducted by Georgetown ...

Jun 14, 2012
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Bicycle

A bicycle, also known as a bike, pushbike or cycle, is a human-powered, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other. A person who rides a bicycle is called a cyclist, or bicyclist.

Bicycles were introduced in the 19th century and now number about one billion worldwide, twice as many as automobiles. They are the principal means of transportation in many regions. They also provide a popular form of recreation, and have been adapted for such uses as children's toys, adult fitness, military and police applications, courier services and bicycle racing.

The basic shape and configuration of a typical upright bicycle has changed little since the first chain-driven model was developed around 1885. However, many details have been improved, especially since the advent of modern materials and computer-aided design. These have allowed for a proliferation of specialized designs for particular types of cycling.

The invention of the bicycle has had an enormous impact on society, both in terms of culture and of advancing modern industrial methods. Several components that eventually played a key role in the development of the automobile were originally invented for the bicycle, including ball bearings, pneumatic tires, chain-driven sprockets, and spoke-tensioned wheels.

This text uses material from Wikipedia licensed under CC BY-SA