<p>➀ ETH Zurich researchers developed smart textiles (SonoTextiles) using glass microfibers to conduct acoustic waves instead of electronics for touch and motion sensing;</p><p>➁ Changes in acoustic wave frequencies (around 100 kHz) indicate movement, pressure, or touch, enabling low-computing-power data processing;</p><p>➂ Woven glass fibers with transmitters and receivers detect disruptions caused by body movements or breathing, expanding wearable tech applications.</p>