Fossils from polar regions demonstrate plate tectonics and continental drift (with a bit of geological scale climate & greenhouse gas change thrown in), *not* that Earth tilted wildly on its axis any more than we very well understand from orbital mechanics (e.g. Milankovitch cycles). The astronomical year has not in human times been 360 days either (hard to believe this came up at a reasonably scientific site) -
those who think so need to learn about intercalation and intercalary months that were present in ancient calendars to allow a 360-day calendar (an extremely pretty round number with opportunity for subdivision) to be repeatedly recalibrated to the ~365.25 day astronomical year.
None of the Solar System's orbital mechanics has anything to do with the laughable pseudoscience notion of 'perpetual motion', which generally involves magicking up some free energy to maintain an otherwise decaying system.
XKCD visited this just the other day. Physics is mean...