NASCAR tests tires on a unique machine that can spin rubber at 200 mph
Monday, March 24, 2014 - 07:00
in Astronomy & Space
(Phys.org) —Tens of thousands of NASCAR race fans will converge March 30 in nearby Martinsville for the STP 500, watching dozens of race cars zip around the Martinsville Speedway at speeds exceeding 130 miles per hour, tires screeching and leaving rubber on the track.