last updated April 8th, 2008 and is permanently morphing...
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bi·cy·cle /ˈbaɪsɪkəl, -ˌsɪkəl, -ˌsaɪkəl/ [bahy-si-kuhl, -sik-uhl, -sahy-kuhl] noun, verb, -cled, -cling.
Social ImplicationsIn cities, bicycles helped reduce crowding in inner-city tenements by allowing workers to commute from more spacious dwellings in the suburbs. They also reduced dependence on horses, with all the knock-on effects this brought to society. Bicycles allowed people to travel for leisure into the country, since bicycles were three times as energy efficient as walking, and three to four times as fast. Cycling has many health benefits and does not directly contribute to global warming or environmental pollution.