Keeping Time (2)
“The cycloidal curve is a different matter,” Bob continues. "It’s what governs the wheels of a bicycle and puts a measure of distance between two places along a stretch of pavement.” The path that a point on the perimeter of a circle travels, as it rolls forward over a horizontal plane, draws an invisible cycloidal curve. And because it does, a bicycle moves forward in a journey through time and space.
Point Rotating On A Plane
Curve Drawn Through The Rotating Point
