The physics of squeaking sneakers
Ars Technica
by
Jennifer Ouellette
February 26, 2026
AI-Generated Deep Dive Summary
The physics behind the squeaks of sneakers has been decoded by scientists, revealing that the geometry of tread patterns determines the frequency of these sounds. By manipulating the shape and design of rubber blocks, researchers were able to control frictional forces and even play music—such as the iconic "Imperial March" from Star Wars—when slid across surfaces. This breakthrough highlights how surface texture influences motion and opens new possibilities for engineered materials with tunable friction.
The study, published in *Nature*, draws inspiration from Leonardo da Vinci’s 15th-century experiments on friction, which involved pulling blocks with weights and pulleys to observe the forces at play. Using a similar approach, modern researchers explored how varying tread geometries create different slip pulses—miniature movements that generate sound. Their findings not only deepen our understanding of friction but also provide insights into natural phenomena like earthquakes, where tectonic plates experience similar slipping motions.
The discovery could lead to advancements in materials science and engineering, such as creating surfaces that can transition between low-friction and high-grip states on demand. This innovation has potential applications in robotics, tribology (the study of interacting surfaces), and even earthquake prediction models. By mimicking nature’s patterns and leveraging geometric design, scientists are paving the way for smarter, more adaptive materials that could revolutionize fields from transportation to construction.
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Originally published on Ars Technica on 2/26/2026