Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.physics > #521362

Re: What would happen if there was a giant straw connecting the Earth’s atmosphere right above the ground to space?

Show all headers | View raw

On 9/15/2015 10:51 AM, gilber34 wrote:
> On 9/15/2015 8:26 AM, Sam Wormley wrote:
>> What would happen if there was a giant straw connecting the Earth’s
>> atmosphere right above the ground to space?
>
>
>   On the other hand, if you attached some
>>> kind of pump to the bottom of the straw to make it have a higher
>>> pressure than sea-level, then you could pump air up the straw and
>>> have some kind of massive space-fountain of air (the air coming out
>>> would fall back to Earth just like water in an ordinary fountain).
>>> In fact!  There is a situation very close to that happening on
>>> Saturn’s moon, Enceladus.
>>>
>>
>>
>   Extra point question:  How Thick does the straw have to be to survive
> the water pressure to get water out of the top of the straw, if it has
> 1/2 inch hole, extends 6 miles up, and how much pressure will the pump
> have to have?  (assume pump and straw submerged 100 feet.)

6 miles * 5280 feet/mi = 31,680

1 foot = 0.433 psi

so 6 mile straw full of water has 13,717 psi at the bottom

How thick does the plastic have to be ?

Back to sci.physics | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

What would happen if there was a giant straw connecting the Earth’s atmosphere right above the ground to space? Sam Wormley <swormley1@gmail.com> - 2015-09-15 08:26 -0500
  Re: What would happen if there was a giant straw connecting the Earth’s atmosphere right above the ground to space? gilber34 <invalid@invalid.com> - 2015-09-15 10:51 -0500
    Re: What would happen if there was a giant straw connecting the Earth’s atmosphere right above the ground to space? gilber34 <invalid@invalid.com> - 2015-09-15 17:08 -0500
    Re: What would happen if there was a giant straw connecting the Earth's atmosphere right above the ground to space? "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-09-15 15:29 -0700
      Re: What would happen if there was a giant straw connecting the Earth's atmosphere right above the ground to space? benj <nobody@gmail.com> - 2015-09-15 18:57 -0400
      Re: What would happen if there was a giant straw connecting the Earth's atmosphere right above the ground to space? "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-09-16 12:53 -0700
        Re: What would happen if there was a giant straw connecting the Earth's atmosphere right above the ground to space? "hanson" <hanson@quick.net> - 2015-09-16 13:07 -0700
      Re: What would happen if there was a giant straw connecting the Earth's atmosphere right above the ground to space? "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-09-17 12:27 -0700
  Re: What would happen if there was a giant straw connecting the Earth’s atmosphere right above the ground to space? jimp@specsol.spam.sux.com - 2015-09-15 17:45 +0000
  Re: What would happen if there was a giant straw connecting the Earth's atmosphere right above the ground to space? "nuny@bid.nes" <Alien8752@gmail.com> - 2015-09-15 15:11 -0700
    Re: What would happen if there was a giant straw connecting the Earth's atmosphere right above the ground to space? noTthaTguY <abu.kuanysh05@gmail.com> - 2015-09-16 14:13 -0700
      Re: What would happen if there was a giant straw connecting the Earth's atmosphere right above the ground to space? "nuny@bid.nes" <Alien8752@gmail.com> - 2015-09-17 14:21 -0700
        Re: What would happen if there was a giant straw connecting the Earth's atmosphere right above the ground to space? noTthaTguY <abu.kuanysh05@gmail.com> - 2015-09-17 16:42 -0700
          Re: What would happen if there was a giant straw connecting the Earth's atmosphere right above the ground to space? "nuny@bid.nes" <Alien8752@gmail.com> - 2015-09-17 23:11 -0700
            Re: What would happen if there was a giant straw connecting the Earth's atmosphere right above the ground to space? noTthaTguY <abu.kuanysh05@gmail.com> - 2015-09-18 11:22 -0700
            Re: What would happen if there was a giant straw connecting the Earth's atmosphere right above the ground to space? "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-09-18 11:29 -0700

csiph-web