Why doesn't the sky fall?

[Bill Glaze]

Jim:
that explains the strange noises in my head........ er, I mean, well, 
Oh, forget it!  bill

Jim Ivey wrote:

>Bill
> In the south it booms everyday. In the summer.
>
>Jim Ivey
>  
>
>>From: Bill Glaze <billglaze at triad.rr.com>
>>Date: 2005/08/15 Mon PM 05:25:50 EDT
>>To: discussion at nsrca.org
>>Subject: Re: Why doesn't the sky fall?
>>
>>Why isn't the sky always booming?  Bill
>>
>>randy10926 at comcast.net wrote:
>>
>>    
>>
>>>Air molecules are never at rest. They undergo constant random thermal 
>>>motions of a variety of types. The simplest type is that of uniform 
>>>translation. The mean speed is about 500 m/s which is greater than the 
>>>speed of sound (340 m/s).
>>> 
>>>Randy
>>> 
>>>
>>>    -------------- Original message --------------
>>>    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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