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.
The modern editions of the Tour de France consist of 21 day-long segments (stages) over a 23-day period and cover around 3,500 kilometres (2,200 mi). The race alternates between clockwise and counterclockwise circuits of France. The number of teams usually varies between 20 and 22, with nine riders in each.