On Feb 2, 10:54 am, Mega <masterstorm...@gmail.com> wrote:
> You seem to forget one thing:
>
> The solar winds are charged particles. When they hit an atmosphere,
> they induce a field. This field saves Venus' atmosphere from being
> tossed into space.
>
> If we created a thick atmosphere on Mars, the charging of the solar
> winds would protect it itself from erosion!
First, you aren't going to be able to build it up from scratch. The
swirling of the atmosphere as a whole is what creates the shield.
Small parts of an atmosphere will just blow away, not to mention that
a sparse cloud of ionized atmosphere isn't the best place for
organisms to live.
Second, you're going to need lots of atmosphere to create even a weak
shield as on Venus. Slam whatever you want into Mars to form an
atmosphere, if you don't shatter the planet, in the short term, you're
going to get a hot planet covered by a thick cloud of hot gas that
will seem vaguely familiar.
Lastly, you're talking about a recreating a Goldilocks astrological
event that we aren't entirely sure how it occured the first time.
Unless you've chosen the perfect rock to hit it with at the perfect
speed and time, you're just as likely to get Venus out of the equation
as Earth.
IMO, ideally, before you slam whatever substrate into it, you'd have
spent some time cooling a hot planet (or two) down so that you could
cool the planet quicker and redistribute/store the energy more
usefully.
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