Swarm parasol - Asteroids Too Forum: Spacesettlers
Thread: Swarm parasol - Asteroids Too
Good point. Regular rotation will be needed for any semblance of life
as we know it to adapt to a cool Venus.
We must also find a way to neutralize the H2SO4 that permates the
atmosphere and which will form lakes when cool.
Perhaps a few good collisions with a few metallic and carbenaceous
asteroids could be arranged? The asteroids should come from around
the sun and hit off center but on the equator so as to impart some
angular momentum to induce a spin. Chances are that Venus's spin was
lost from a similar collision millions of years ago, so why not use
the same process to correct it? Naturally, we will have to be careful
not to change Venus's orbit so much that it might come close to
Earth :-) A few good impacts spread-out over several months should be
sufficient to both add orbital velicity thus moving Venus away from
the sun, and to impart rotation. Then, letting the planet cool for a
few thousand years will be needed.
Earth to reduce the effects of global warming will be good practice.
Spraying aluminum onto SiO2 cloth will form a durable
mirror/reflector. Using 1 square KM sections should be sufficient to
facilitate handling.
Cheers,
Tom Tucker
--- In spacesettlers@y..., "Ed Minchau" wrote:
> --- In spacesettlers@y..., "Dr. Omni" wrote:
> > From: "Bill"
> > To:
> > Sent: Thursday, February 01, 2001 9:05 PM
> > Subject: [spacesettlers] Re: Swarm parasol
> >
> Suppose the swarm parasol actually works, and you manage to bring
the
> average temperature on Venus down substantially. What would you do
> about the day? Venus' "day" is 243 days, retrograde; and the
orbital
> period is about 225 days- one side will face the sun for over 100
> days straight.
>
> > I'm wondering. If the albedo of the planet doesn't change, could
> such
> > a swarm be used around Mars to keep in heat and possibly
atmosphere.
> >
> > Yes. Although, in the case of Mars, a simple greenhouse effect
> using gases
> > would do the same thing. Also, if a 1 bar atmosphere was
> miraculously
> > materialized around Mars, I think that it would take millions of
> years to
> > disperse, so the need for a "atmosphere retention" swarm is
> questionable.
>
> Simpler is better, less prone to fault.
>
> > (However, I myself have thought about swarms for atmospheric
> retention for
> > smaller worlds, like the Moon or Pluto/Charon or many of the gas
> giant
> > moons.)
> >
> We should leave the moon airless: more efficient solar power,
better