The Story Behind the Reservoir Covered With 96 Million Balls
Why is a reservoir in Los Angeles covered with 96 million floating balls? To keep the sunlight from affecting the water. But lakes and reservoirs exist all over the world with sun shining on them! Veritasium host Derek M...
https://www.neatorama.com/2019/05/13/The-Story-Behind-the-Reservoir-Covered-With-96-Million-Balls/