John Sweeney wrote: > > I get people to spin fast with a buzz-step by themselves first - > they never fall over even though no-one else is holding them up. If > they do the same thing when joined with a partner then the pressure > is low. >
That's because a single person spins around in place. Around an axis that is close to running through their center of gravity. Two people instead spin around an axis (nearly) through their combined center of gravity. When you spin alone these forces still exist, but they are internal to you and you don't notice them. They are also less, because there's less of you and because you're closer to the center of rotation. Jeff
