[physics] Fang asks, "is it possible to have a directional heatsink?"
[physics] Fang says, "I mean, I was thinking about the problem of hiding a spaceship"
[physics] Iain says, "Paint it plaid and just brazen it out, that's my advice."
[physics] Iain says, "'That can't possibly be a spaceship, spaceships aren't tartan.'"