Source link : https://bq3anews.com/are-we-able-to-design-sports-activities-sneakers-that-dont-squeak-right-heres-what-the-science-says/
The unofficial soundtrack of each basketball, squash or hard-court tennis fit is the consistent high-pitched squeak or shreak of the avid gamers’ sneakers. However can this squeak be designed out of them whilst holding the grip?
That’s the query a world crew of engineers and implemented physicists, together with me, were investigating. It feels like a small design tweak. In truth, it cuts to a deep physics downside: how a mushy frame slides towards a inflexible one.
In all probability unusually, the mechanism that produces sound when a mushy forged slides towards a stiffer one has lengthy been the topic of medical debate. Maximum theories are related to the concept that of “stick-slip”: when, as an alternative of sliding easily, the sliding object hastily alternates between sticking and slipping.
Whilst it sticks, the mushy frame (reminiscent of a rubber sole) deforms and shops elastic power. Then it unexpectedly slips, turning a lot of that power into warmth via friction – whilst additionally freeing speedy vibrations that radiate out as sound.
However this isn’t precisely what we seen in our experiments.
After Leonardo da Vinci
Our not too long ago printed learn about took inspiration from the simple-but-effective setup utilized by Leonardo da Vinci in his research of friction from the overdue fifteenth century.
Leonardo da Vinci’s sketches of his pioneering friction experiments.
Codex Arundel, British Library…
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Author : bq3anews
Publish date : 2026-03-08 08:57:00
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