Tom Jennings wrote: > On Wed, 4 May 2005, Eric Smith wrote: > >> Since the atmosphere is >> about 80km tall, obviously there must not be anything but argon down >> here in the bottom 800m for us to breathe. > > > Well once we stop STIRRING IT ALL UP it'll settle out into nice > pretty, orderly layers, dammit. So where does the FART layer go?