bytes.sphere on Instagram: "Your body… as an interface. 🤯 SkinTrack is a groundbreaking research system that transforms the surface of your skin into a fully functional input device — letting you control wearables with simple finger movements across your arm. Developed in 2016 by Yang Zhang, Junhan Zhou, Gierad Laput, and Chris Harrison, this system uses a ring that emits a continuous high-frequency AC signal, paired with a wristband equipped with multiple electrodes that detect and track your