3 ms·
To the first, from the article: As the metal blades spin, centrifugal force kicks up the air and throws it up and outwards, much like an impeller, creating a c
by samstokes 15y ago
To the first, from the article:
As the metal blades spin, centrifugal force kicks up the air and throws it up and outwards, much like an impeller, creating a cooling effect.
I had to read that part twice too, but it sounds like the air cushion is only there initially, but gets sucked out when the fan spins. (That said, if it leaves a vacuum, that doesn't sound great for conductivity either...)
- mpyne 15y agoIt wouldn't leave a vacuum, as the air on the outside of the fan would rush in to replace it. I think the point is that (if this works), the boundary layer itself will also be moving instead of sitting there stagnant.