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A bicycle, also called a pedal cycle, bike, push-bike or cycle, is a human-powered or motor-assisted, pedal-driven, single-track vehicle, with two wheels attached to a frame, one behind the other. A bicycle rider is called a cyclist, or bicyclist. Bicycles were introduced in the 19th century in Europe. By the early 21st century there were more ...
Cycling, [1] also known as bicycling [2] or biking, [3] is the activity of riding a bicycle or other type of cycle. It encompasses the use of human-powered vehicles such as balance bikes , unicycles , tricycles , and quadricycles .
Animal migration – Avalanche – Carbon cycle – Climate change – Climate change and agriculture – Climate model – Climate oscillation – Clock of the Long Now – Ecology – El Niño/La Niña – Endometrium – Environmental geography – Global cooling – Global warming – Historical temperature record – Hydrogen cycle – Ice ...
1886 Swift Safety Bicycle. Vehicles that have two wheels and require balancing by the rider date back to the early 19th century. The first means of transport making use of two wheels arranged consecutively, and thus the archetype of the bicycle, was the German draisine dating back to 1817.
Charge cycle, charging and discharging a rechargeable battery; Thermodynamic cycle, a sequence of processes that transfer heat and work into and out of a system; Wave cycle, the repeatable part of a periodic wave; Cyclic, a primary flight control for helicopters; Cyclic compound; Cycle in cycle per second, which is a unit of frequency (rate of ...
Dutch woman cycling with two young children, using a two-wheeled box-bike. The following outline is provided as an overview of and topical guide to cycling: . Cycling, also called bicycling or biking, is the activity of using / riding bicycles, (at least partially) human-powered, wheeled vehicles (typically by foot pedalling), [1] for purposes including transport, recreation, social ...
A wooden balance bike. A balance bike (or run bike) is a bicycle without pedals that learners propel by pushing their feet against the ground. [1] By allowing children to focus on developing their sense of balance and coordination before introducing pedalling, balance bikes enable independent riding more quickly than training wheels.
Aleksandr Vlasov riding a Specialized S-WORKS road bike. Road cycling is the most widespread form of cycling in which cyclists ride on paved roadways. [1] It includes recreational, racing, commuting, and utility cycling.