Re: Non-Dyson sphere?
- From: BradGuth <bradguth@xxxxxxxxx>
- Date: 28 May 2007 09:20:10 -0700
On May 18, 6:41 pm, VGer47 <geldere...@xxxxxxxxxxx> wrote:
When thinking about Dyson sphere's and other mega structures a thought
struck me: what if you built a hollow sphere out of the same
Unobtanium used for Dyson spheres, but made it smaller - say, no
larger than the sun, or if necessary, Jupiter - put a rocky outer
layer around it with sufficient mass to get a surface gravity of 1 G,
spun the whole thing up to rotate in 24 hours and then put it in the
right orbit around the sun, would the result be habitable (given
proper terraforming of course)? Would it be stable? How big an outer
layer would you need to get 1 G at the surface? (Seeing as my math is
terrible and I don't trust myself to come up with any realistic
answer)>
And most importantly, since I'm sure I'm not the first to think of
this, what''s the official name for this structure?
VGer47
Essentially my LSE-CM/ISS habitat is that of a 256e6 tonne hollow orb,
as a somewhat robust borg sphere of a space station/depot or
interplanetary gateway platform that's attached to our moon via basalt
fiber tethers, as situated 60,000 km away from the moon or just a
little extra outside of the moon's L1 (pulled towards Earth). As such
there should be some limited gravity associated from having roughly
200 tonnes/m2 below your feet if utilizing the thick outer shell of
that 64 meters worth of basalt and alloy reinforced material as the
interior floor of this 1e9 m3 space habitat that's only 324,000 km
away from Earth, and that's not including its tether dipole element
reaching its robust remote habitat termination platform to within 4r
of Earth (closer if you dare).
There's a good chance that our salty old moon that's so unusually
surface mascon uneven is actually somewhat hollow in places,
especially with the core of whatever low mass substance pulled towards
Earth, and otherwise perhaps in a good sort of way our sun's core
might actually be that of a hollow realm of a mostly fusion active
zone, that's actually more than likely operating itself at a terrific
vacuum instead of pressure. The rate of spin and the given diameter
of our sun makes it possible for that stellar core to being of a
fairly low mass, if not of a relatively good vacuum, as if it weren't
spinning it would be collapsing upon itself and thus going more
quickly towards becoming a compact/dwarf star as the outer layers are
consumed.
Earth is currently 98.5% fluid, though of not all that great of radius
nor is it spinning itself fast enough to cause a hollow core on its
own. However, that notion of a small fusion star or possibly a small
black hole at the center of Earth would certainly become rather
interesting, as to what the expanding gas might otherwise force as a
semi-hollow or extremely low density stellar core interior.
What your hollow planet or "Non-Dyson sphere" idea needs is access to
a good deal of any one of our public supercomputers, and of their
existing 3D simulation software that we've also paid for several times
over. There are dozens of such spendy and yet otherwise fully public
funded supercomputers or otherwise parallel stacked computer farms to
pick from, as most of those investments haven't actually been doing
anything all that important.
-
Brad Guth
-
"whoever controls the past, controls the future" / George Orwell
.
- References:
- Non-Dyson sphere?
- From: VGer47
- Non-Dyson sphere?
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