Energy & Green Tech

EXPLAINER: Bikes, batteries and blazes spark concern in NYC

A weekend fire that injured over three dozen people—and forced firefighters to use ropes to pluck people from a 20th-story window—is drawing attention to a rising concern in New York City: battery fires that can arise ...

Business

What if Apple made an e-bike?

For seven years, Horace Dediu has been thinking about one idea almost every day. A longtime handset industry analyst and avid Apple follower, Dediu, 54, also popularized the term "micromobility" to describe a growing array ...

Computer Sciences

Making bike-sharing work

They're everywhere, from Berlin to Beijing, brightly colored bicycles you can borrow to move around the city without a car. These systems, along with e-scooters, offer people a quick and convenient way to travel around urban ...

Consumer & Gadgets

Safety boosters make e-bikes even better

If Europe is to meet its ambitious environmental goal of becoming carbon neutral by 2050, more and more people will need to cycle to get around. With World Bicycle Day on June 3rd celebrating pedal power's undeniable benefits, ...

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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