Scientists unveil the first full description of how and why a ribbon curls when we scrape one side of it with scissors.
Physics - BBC News
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RIBBONS
White Curling Ribbon, 350 Yards by Gwen Studios
Physics of ribbon curling unravelled - BBC News
Physicists Still Don't Know What Puts the Curl in Curling
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Unravelling the physics of curling – Physics World
Manual also available as a .pdf - Texas State Library and Archives