Bicycle were introduced in the 19 century and as of 2003, more than I billion have been produced worldwide, twice as many as the number of automobiloes that have been produced they are the principal means of trancporation in many region.
They also provided a popular form of recreation and have been adapted for use as children toys, general fitness. Miltiry and police applications courier services and service and bicycle reacing.
The basis shape of and configuration upright or safety has changed little since the first driven model was developed around 1885.but many details have been improved especially since the advent of modern and computer.
These have allowed for a proliferation of specialized design for many types for many types of cycling. The bicycle invention has been effect on society both in terms and of advancing modern industrial methods.
several components that eventually played a key role in the development of the automobile were initially invented for use us the bicycle including ball bearings pneumatic tires chain drenen and tension spoked and wheels.the worldd bicycle first appeared in english paing in the daily news in 1868.