On Tue, Sep 4, 2012 at 4:21 PM, MarkI-ZeroPoint <zeropo...@charter.net> wrote: > I’d like to note a few observations about the later half of this vid: > > http://www.youtube.com/watch?v=zqG-TL0WnjE
> > - There are at least 6 places of energy-robbing friction: > > o 2 Drum bearings, (don’t see bearings per se, but can see what looks > like a brass plate embedded in each wooden structural post) > > o White oblong wheel rubbing against metal (bearing?) on wooden top bar, > > o Top bar’s vertical post rubbing in its guide on the side of the > structural post > > o The top bar’s loose end rubbing against the groove in the wooden > vertical structural post > > o White oblong wheel pushing on the metal arm at the bottom to raise the > ‘teeter-totter’ looking assembly mounted to clear plastic base. > > air resistance is a seventh. Harry
