Re: Mercury

On May 2, 5:25 pm, "Martha Adams" <mh...@xxxxxxxxxxx> wrote:
"Williamknowsbest" <William.M...@xxxxxxxxx> wrote in message

news:983878f1-8955-42af-ba87-ff6918eefa43@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx

I recently posted a comment on the colonization of Venus in our own
time. Basically, at an altitude of 55 km above the Venusian surface,
you have a largely carbon-dioxide atmosphere at Earth normal pressure,
and temperature. Since an oxygen nitrogen atmosphere at this pressure
and temperature masses 1.26 kg/m3 - and since a carbon-dioxide
atmosphere at this pressure and temperature masses 3.86 kg/m3 - a
spherical pressure vessel containing an oxygen nitrogen atmosphere
would have over 2.6 kg/m3 of buoyancy under these conditions. So,
something like Buckminster Fuller's 'cloud nine' city concept could be
massively beefed up, and turn into something like Star Wars' fictional
'Cloud City' - as a space colony.

http://starwars.wikia.com/wiki/Cloud_City

<snipped real good stuff>

Cloud cities! *Plausible* cloud cities. I am however,
concerned about maintenance of the lifting balloons.
How warm is the atmosphere there? If the gas in the
balloons is warmer than the atmosphere it offers better
buoyance; but if it's too warm then people cannot go up
inside for checking and maintenance work.

OK on the *Mercury* ideas. My Web site has notes on a
50-min talk I do in which the audience is encouraged to
rough design an off-Terra settlement during my talk. I
will have to make some changes there, after seeing this,
but I cannot do that immediately because I've too much
else to do. But this stuff is *great*. It restores
my good feelings about sci.space.policy as a place
the vandals haven't won out yet and good things can
happen here.

Titeotwawki -- mha [sci.space.policy 2008 May 02]

You actually think this Mook thing about our terraforming Mercury is
"good things" worthy?

Of which LLPOF future century are you thinking about? (3000?)
.. - Brad Guth
.

Relevant Pages

  • Re: Mercury
    ... you have a largely carbon-dioxide atmosphere at Earth normal pressure, ... and temperature masses 1.26 kg/m3 - and since a carbon-dioxide ... Venus and how it changes with altitude. ...
    (sci.space.policy)
  • Re: Reply to Eric Rowley -- Ozone
    ... increased pressure would increase temperature. ... Bravo thought the water needed that degree of temperature to stay ... It isn't as simple as that, because the volume of the atmosphere ...
    (talk.origins)
  • Re: The weather and the many different factors that drive it...
    ... > winds travel upwards and suck air away from the surface of the Earth ... > like a giant vacuum cleaner, decreasing the air pressure above the ... > the levels in the atmosphere involved. ... > Troposphere where in reality the Stratosphere has a part to play. ...
    (sci.geo.meteorology)
  • Re: Reply to Eric Rowley -- Ozone
    ... some>>> discussion about the water canopy that creationists say ... other than you claiming that pressure causes high ... increase in temperature, so be it. ... the entire oceans of the planet up there in the atmosphere. ...
    (talk.origins)
  • Re: Mercury
    ... Since an oxygen nitrogen atmosphere at this pressure ... and temperature masses 1.26 kg/m3 - and since a carbon-dioxide ... *Plausible* cloud cities. ...
    (sci.space.policy)