Strengths and vulnerabilities of teen skateboarders

More young people are opting for skateboards as a mode of transport, with fewer choosing to get their driver license, and more needs to be done to protect them on the road, a University of Otago study has found.

Steering new mobility in the right direction

Advances in transportation technology—e-scooters and bike share, Lyft & Uber, and autonomous vehicles—are beginning to have profound impacts on cities. New mobility is changing not only how we travel, but also urban form ...

Study finds bike lanes provide positive economic impact

Despite longstanding popular belief, bicycle lanes can actually improve business. At worst, the negative impact on sales and employment is minimal, according to a new study from Portland State's Transportation Research and ...

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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