Discussion in 'Science and Technology' started by dealmaker, Nov 8, 2018.
Shouldn't they be white?
I would've thought so too, but I think there was a specific reason for 'em to be black. I just totally forget what it is.
Only if they would be opaque. Being opaque, even though they are black and absorb solar radiation, they prevent the water from doing so.
Separate names with a comma.