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
Like a Rolling Stone it goes away. You don't know what it means. Except that the ghost picked me to write the song." More than 50 years since its release, "Like a Rolling Stone" remains highly regarded, as measured by polls of reviewers and fellow songwriters. A 2002 ranking by "Uncut" and a 2005 poll in "Mojo" both rated it as Dylan's number one song. As for his personal views on such polls, Dylan told Ed Bradley in a 2004 interview on "60 Minutes" that he never pays attention to them, because they change frequently. Dylan's point was illustrated in the "100 Greatest Songs