[This is oddly soothing to watch. -egg]
 – –
Coin rolls on treadmill for an hour:

This dime rolls for a little more than 58 minutes at 3.4 miles an hour. It traveled a little over five miles in that time. Check out 38:30 when the experimenter sticks his head in frame and stick around for the analysis at the end.

Coin rolling on treadmill via burritojustice