The curling controversy continues. :-)
COLD HARD SCIENCE. The Controversial Physics of Curling https://www.youtube.com/watch?v=7CUojMQgDpM BTW I have done my own tests with three metal cylinders each with different diameter-to-height ratios on two different surfaces (synthetic ice and melamine). I can get them to curl in the same direction as a curling stone on ice as long as they only complete one-quarter of revolution. If they complete more revolutions they would curl just like the over turned glass shown in the above video. Harry
