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   sci.space.science      Space and planetary science and related      1,217 messages   

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   Message 674 of 1,217   
   Keith Harwood to Ian Stirling   
   Re: baloon static in air   
   08 Aug 04 09:44:22   
   
   From: vitalmis@optusnet.com.au   
      
   Ian Stirling wrote:   
      
   > Keith Harwood  wrote:   
   >> Dave wrote:   
   >>   
   >>> "George Kinley"  wrote in message   
   >>> news:Tn2Mc.21135$k4.417285@news1.nokia.com...   
   >>>>   
   >>>> So on moon,  if we do same stunt and get up to 10m in space the land   
   >>>> will move below   
   >   
   >>> Aaah, but there's the rub...with no atmosphere, there's no medium in   
   >>> which a balloon can be buoyant, so you can't remain aloft.   
   >>   
   >> And with no air there's no wind, so the land won't move. It's the wind   
   >> which makes the balloon move with respect to the ground.   
   >   
   > Well, with no air, the coefficient of friction to the ground is   
   > significantly higher.   
      
   Ah, very true.   
      
   But getting back to the original premise, it seems from a few discussions   
   around here that there are people who think that if you are attached to a   
   moving body and suddenly become unattached, that you stop moving. This idea   
   was debunked three and a half centuries ago. Why does it still persist?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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