HackerTube / Video
Why Are 96,000,000 Black Balls on This Reservoir?
Veritasium
Veritasium rides a boat across the Los Angeles reservoir covered in 96 million black plastic balls. He explains why they were really introduced, which was not primarily to reduce evaporation.
Referenced as the explanation of shade balls and used in discussions of evaporation and floating covers.
6 Hacker News mentions · 2019–2025