the egely wheel has variable results for different people. even for the same person at different times. I have found the majority of people are able to spin the wheel at least at a slow rate and once they are convinced they are actually doing it, it speeds up.
belief affecting the phenomenon
It is similar to the observer affecting (instantiating?) the event
I dont think there has been any rigorous scientific study of the egely wheel. Probably due to expense, which is too bad, it appears to be an almost universal "impossible" ability latent in people.
Coming from a science background, it always bothered me that I could never find a proper physics to explain the egely wheel, but there must be an explanation
about your apple experiment, isnt there detectable variance depending on ambient conditions, altitude, distance from center of earth (it is lopsided), etc? So a true model becomes far more complicated if it needs to be precisely duplicatable