3 ms·The obvious solution on the next one is to make the blades themselves out of solar panels. ;)by myself248 4y agoThe obvious solution on the next one is to make the blades themselves out of solar panels. ;)somat 4y agoI laughed. but it made me think, I am not sure about that, have you seen the surprising amount of dust that can stick to a computer fan's blades.dang 4y agoSorry for the offtopicness, but could you please email hn@ycombinator.com? I want to send you a repost invite.