[NNagain] Hurling rocks into Earth's gravity well

["Douglas Goncz A.A.S. M.E.T. 1990" <DGoncz@replikon.net>]

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>
> Hello Dr. David.


The gravity at the surface of the Moon is larger than might be expected
since the volume to radius ratio is as r squared, so that with a difference
of 100 times that is a factor of 100x in gravity at surface we can predict
that the rocks they'll be throwing at us we'll be falling up that is thrown
out of the gravity wall for 1/10 the trip roughly and falling down that is
falling into that gravity well for 9/10 of the trip causing an overall
Factor of enormous acceleration. Offhand I would say the process would
achieve 80% of escape velocity.

The Australian science agency has a nice chart out for asteroid type
objects on their website. It summarizes the relationship between the many
many small rocks which are in our system and the very few large rocks which
accompany them as they move at various speeds knowing only statistical
information about how many rocks of which size and how fast they're moving
and what energy the net result is

They quote figures of atta joules. So once given the upward that is towards
the Earth impetus a mere Boulder could do really significant damage
assuming that the transit time could be controlled carefully in their was
either accurate aiming or some type of midcourse correction to get the
target secured.

Trying to find my way back on topic to Net neutrality. Maybe a moon base
could be set up with a transmitter powered by a small nuclear reactor
receiving signals from Earth and retransmitting them to make the
connections for data and voice. Compared to lofting a satellite having the
time to construct such an item on the surface of the Moon would be
advantageous the way it seems to me. I'm pretty sure that a satellite would
have to be put into place in orbit with its power supply and all that and
that's what starling does bloody bloody blah.

By the way I'm running for president.
/ / < GONCZ2028 > /


Cheers
Doug




>
> On Mon, Oct 7, 2024, 10:04 AM David Bray, PhD <david.a.bray@gmail.com>
> wrote:
>
> ...
> >
> > Meanwhile China probably will land humans on the moon within the next
> four
> > years of whomever is the next U.S. President. That may happen before the
> > U.S. returns to the Moon. Either way, a "base" on the Moon by 2035 (which
> > is PRC's goal) even if it's robots - or humans with the risk of loss of
> > life) raises some challenges in terms of SIGINT, GEOINT, and the general
> > ability to hurl rocks into Earth's gravity well....

>
>
>
>

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