Engineering

GeoOrbital shows rethink of bicycle wheel concept

Something called the GeoOrbital wheel is live on KickStarter. This thing is worth looking at, considering that out of a $75,000 goal the makers have gathered $252,266—and with 43 days still left to go.

Energy & Green Tech

Bike-path made from recycled plastic opens in the Netherlands

Officials with the Dutch city of Zwolle have announced the opening of a new bike path made using recycled plastic. The bike path is part of a nationwide effort to recycle more user end products. The bike path was made using ...

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, ...

Energy & Green Tech

Cyprus racers show budget solar cars have a sunny future

Venetia Chrysostomide fastened her helmet and rolled her solar-powered car into the sunny streets of Cypriot capital Nicosia for a race to showcase such vehicles' eco-friendly potential, even on a budget.

Automotive

Waymo brings robo-taxis to San Francisco in new test

Waymo, the autonomous driving unit of Google's parent company Alphabet, said Wednesday it would begin testing its driverless ride-hailing service on the streets of San Francisco with employees as riders.

Automotive

A new metric for designing safer streets

A new study published in Accident Analysis & Prevention shows how biometric data can be used to find potentially challenging and dangerous areas of urban infrastructure before a crash occurs. Lead author Megan Ryerson led ...

Automotive

How coronavirus made 2020 the year of the electric bike

Walking and cycling gained a higher profile than ever in 2020 as a result of the pandemic. Governments around the world encouraged individuals to go on foot or take their bikes where possible instead of using crowded public ...

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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