shade balls
Entity2 videos from 1 channel
Shade balls are black plastic spheres used to cover water surfaces to reduce evaporation, a topic explored in this video.
1:07There are 96 million black balls on this lake
I took a boat through 96 million black plastic balls on the Los Angeles reservoir to find out why they're there. The…
Veritasium
2:28Can you swim in shade balls?
I bought 10,000 shade balls and tried to swim in them. They appear to act like a non-Newtonian fluid: rigid under high…
Veritasium