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In order to study how shoelaces untie themselves, the team did a handful of experiments. "We did all sorts of stuff," says graduate student and co-author Christine Gregg. "We ran on treadmills. We swung our legs back and forth while sitting on tables, to take the impact out of the equation. We just
"The interesting thing about this mechanism is that your laces can be fine for a really long time, and it's not until you get one little bit of motion to cause loosening that starts this avalanche effect leading to knot failure," said Christine Gregg, a graduate student at UC Berkeley and a co
Date: Apr 13, 2017
Source: Google
Knot kidding: Science explains why shoelaces come untied
"The forces that cause this are not from a person pulling on the free end, but from the inertial forces of the leg swinging back and forth while the knot is loosened from the shoe repeatedly striking the ground," study co-author and graduate student Christine Gregg said in a statement. She was also
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