HackerTube / Video
How To Make Infrared Cooling Paint (Electricity Free Air Conditioning)
NightHawkInLight
NightHawkInLight shows how to make ultra-white radiative paint that cools surfaces below ambient temperature without electricity. He walks through the research papers and the household-materials process.
HN points to it as a practical, well-researched DIY demonstration of passive radiative cooling.
6 Hacker News mentions · 2022–2025