HackerTube / Video
Revolutionary Paint: How to Make Surfaces Stay Cool in the Sun
Tech Ingredients
Tech Ingredients shows how to make a homemade radiative cooling paint, with a custom liquid panel that cools below ambient temperature outdoors. The video covers the materials and how to apply the paint.
HN points to it as an impressive, hands-on DIY demonstration of passive radiative cooling that works in practice.
10 Hacker News mentions · 2023–2026