alt Hacker News> We don't care to coherently reflect the light; we just want to block it.
The energy has to go somewhere. If you're not reflecting it you're absorbing it and you eventually have to do something else with it.
> We don't care to coherently reflect the light; we just want to block it.
The energy has to go somewhere. If you're not reflecting it you're absorbing it and you eventually have to do something else with it.
In fairness, a white sheet and a mirrored sheet will have much the same impact in this regard.