The Physics of Squeaking Sneakers

2 days ago

Scientists discovered that the geometry of sneaker tread patterns determines the squeak frequency.
The research enables creating rubber blocks that produce specific frequencies, demonstrated by playing the 'Imperial March' from Star Wars.
Findings could lead to tunable frictional metamaterials, switching between low-friction and high-grip states.
The study provides insights into tectonic faults, offering a new model for understanding earthquakes.
Leonardo da Vinci conducted early systematic studies on friction, influencing modern tribology.
Sneaker squeaks involve stick-slip friction, with new research focusing on soft-on-rigid interfaces.
Experiments involved sliding basketball shoes on glass, capturing sound and visual data to analyze frictional dynamics.
Audible squeaks result from non-uniform opening pulses, with frequency tied to pulse repetition rates.

Hasty Briefsbeta