Greetings all:
A 10 meter astroid would be similar in size to the original size of the Ash
Creek meteorite, or about the size but not mass of the International Space
Station. Its most valuable use would be as a projectile to to deflect an 100
meter or larger NEO. If capture failed and it
Steve wrote:
A 10 meter astroid would be similar ... our best defence against a
larger extinction event astroid.
Steve, before taking the controls of Asteroid videogames, you need to
dig up an old Spirograph toy. They are really fun. There you can
learn all you want about deflecting
You forgot Bernd the most importand change
Interesting idea. What could possibly go wrong?
What if the nudge is a little bit too strong?
What if the Moon interferes?
What if this NEO is thus sent hurtling toward planet Earth?
- utter devestation
- millions of people killed
-
Hi Bernd, Marcin, Listees -
H ... maybe that little nudge they describe can be controlled by
a horse's hair and we can call the mission 'Damocles'!
There are no interplanetary driver licences required nor parking permit
bureau to issue a parking citation (except a citation of the
Hi, Bernd, List,
A mere 10-meter spherical asteroid? (To a physicist,
everything is spherical at the first approximation...)
That's 523.6 cu. meters. At a rock density of 2 to 3
metric tons per cu. meter, that's somewhere between
1047.2 and 1570.8 metric tons.
As a disaster, it's on a par with
Hi Sterling, list -
what concerns your 33 m. Asteroid scenario: the Tunguska event, following
actual insights, could have been caused by a stony asteroid (or comet) of
low density, diameter 30 - 50 m. That is same weight division. No crater,
indeed. But a bit more than a lot of fast
.but, just think of all the meteorites that those of us who are left will
have!! - and, we will have ground truth too!
Dave
- Original Message -
From: Bernd V. Pauli bernd.pa...@paulinet.de
To: meteorite-list@meteoritecentral.com
Cc:
Sent: Monday, August 29, 2011 5:51 PM
Meteorites for everyone!!! (that is left alive) :-0
Stuart McDaniel
Lawndale, NC
Secr.,
Cleve. Co. Astronomical Society
IMCA #9052
Member - KCA, KBCA, CDUSA
-Original Message-
From: Bernd V. Pauli
Sent: Monday, August 29, 2011 5:51 PM
To: meteorite-list@meteoritecentral.com
Subject:
Hello Sterling,
Well, since the purpose of this is to mine an asteroid, it seems pretty
foolish to waste all that effort on a 10 meter rock which you won't
allow to be an iron.
IT HAS TO BE AN IRON unless you want to waste money. Or do you want to
mine antimony (element = Sb). That would
Doug, List,
I'll refer you to the book, Mining The Sky, by
John S. Lewis, which makes a nice solid 260-page
case for the economic value of the asteroids. Or
to Harrison Schmidt's economic analysis of the
value of mining the lunar surface for REE's
(Rare Earth Elements).
Iron is worth about
Sterling wrote:
Personally, I think the worry about accuracy of orbital maneuvers
is silly and mis-placed. Few human operations are are so precise. Think
about matching up with Vesta from hundreds of millions of km away!
I can see it now: China say they are practicing mining and everyone
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