After taking gold in the halfpipe snowboarding event in each of the past two Olympics, American star Shaun White was in line to add some additional hardware to his trophy case with a medal in the new slopestyle event in Sochi...
Any point of an oval belongs to an arc with a constant radius (shorter or longer), but in an ellipse, the radius is continuously changing. In common speech. In common speech, oval means a shape rather like an egg or an ellipse, which may be two-dimensional or three-dimensional.
Often the simplest symbols are the ones with the richest meanings. The infinity sign, the figure of eight, and the mathematical lemniscate all refer to the same shape that contains a wealth of complex meaning within its fluid lines. This mysterious symbol is found on an everyday object, the camera, where it appears as the infinity lens focus.