The five major ocean gyres. A gyre in oceanography is any large system of circulating ocean currents, particularly those involved with large wind movements. Gyres are caused by the Coriolis effect; planetary vorticity along with horizontal and vertical friction, determine the circulation patterns from the wind curl (torque).
Velogames Fantasy Cycling has been providing fantasy cycling contests since 1997. The centrepiece event is the Velogames Fantasy Tour de France, which attracted almost 40,000 teams in 2015.
Home Â» How Many Â» How Many Miles Is The Tour De France. The Tour De France is the worldâs most prestigious bicycle race. It is mainly held in France, with some parts in other countries like Belgium, Spain, Germany and Italy. It is held in July and lasts for three weeks.