Ball Rolls Down an Incline Verrrry Slowly.......
[youtube=http://www.youtube.com/watch?v=7yZwj111f_4] YouTube link. The video demonstrates an unusual phenomenon that is NOT an optical illusion. The physical principles involved are self-evident once you see how the...
https://www.neatorama.com/2010/05/22/ball-rolls-down-an-incline-verrrry-slowly/
