Rather than using expensive, sensitive, hi-tech hardware (like a head-up display or mini lens-projector), Jun Yin’s Viewpace goggles offer a simple extension of a timer for swimmers to track their lap times. The extension is slim and lightweight yet rigid enough to stay intact during rigorous underwater movement. While there is a level of resistance it creates in relation to hydrodynamics, this is negligible compared to the current method of stopping entirely to check a stopw