Cycloid Cycloid A cycloid is the curve traced by a point on the rim of a circular wheel as the wheel rolls along a straight line without slipping. A cycloid is a specific form of trochoid and is an example of a roulette, a curve generated by a curve rolling on another curve. The cycloid, with the cusps pointing upward, is the curve of fastest descent under constant gravity, and is also the form of a curve for which the period of an object in descent on the curve does not depend on the object's starting position. The cycloid has been
The Wheel of Time The Wheel of Time The Wheel of Time is a series of high fantasy novels written by American author James Oliver Rigney Jr., under his pen name of Robert Jordan. Originally planned as a six-book series, "The Wheel of Time" spanned fourteen volumes, in addition to a prequel novel and two companion books. Jordan began writing the first volume, "The Eye of the World", in 1984, and it was published in January 1990. The author died in 2007 while working on what was planned to be the twelfth and final volume in the series. He prepared extensive notes so another