Why doesn't the sky fall?

[Atwood, Mark]

And when you're done hashing that one out (I'm pretty sure gravity DOES
pull the air molecules down) I'd love to hear the complete explanation
of why water is "wet".  

 

-M

________________________________

From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
On Behalf Of J.Oddino
Sent: Monday, August 15, 2005 2:16 PM
To: discussion at nsrca.org
Subject: Why doesn't the sky fall?

 

I thought it was time to stir the pot while we wait for the results from
the Worlds.

Can anyone explain why gravity doesn't pull all the air molecules down
to earth?  Are they lighter than space?  What is their mean speed?

I don't think this will help answer the weathervaning question and won't
help us fly any better but I thought it might be fun.

Jim O

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