Re: Earth-grazing asteroids as a military resource

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Sujet : Re: Earth-grazing asteroids as a military resource
De : '''newspam''' (at) *nospam* nonad.co.uk (Martin Brown)
Groupes : sci.electronics.design
Date : 11. Mar 2025, 11:18:16
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vqp2le$1tn6o$1@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10
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On 06/03/2025 16:44, Bill Sloman wrote:
On 6/03/2025 10:54 pm, Carlos E.R. wrote:
On 2025-03-06 04:06, Bill Sloman wrote:
On 6/03/2025 1:45 pm, Carlos E.R. wrote:
On 2025-03-06 03:05, Bill Sloman wrote:
On 6/03/2025 8:28 am, Dave Platt wrote:
In article <vq8jtq$299g5$1@dont-email.me>,
Bill Sloman  <bill.sloman@ieee.org> wrote:
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Do you really expect that any nation can do such a thing, and not have it
detected and traced back to the nation in question?  Outer space is
a lot more "visible" than something like the Manhattan Project was.
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But there is a lot of it, and most of the action would be happening a long way away from the earth - more than 93 million miles, on average.
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Russell's teapot :-p  :-)
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Not exactly. My claim was simply that observation would be difficult - not impossible - in the same way that it isn't impossible to intercept an intercontinetal ballasitc missile in mid-flight, but that the practical difficulties mean that nobody is trying to do it.
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Reagan's "Star Wars" proposal pretended that it was practical.
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The thing is, it is impossible to prove that there are no objects out there in an intercept orbit with earth.
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If you find one, you have proved it exists, but you can not prove the negative.
 And you'd be mad to try. Meteorites hit the earth every day, so there are clearly lots of small objects out there with intercept orbits with earth.
Meteors are incredibly common. Meteorites that actually survive intact to reach the surface are really quite rare. News worthy when they do.
Curious feature is that Japanese insurers will not pay out for meteor damage to a home - however any meteor that can damage a house will likely be worth more than the damage it causes.
Bright metallic nickel iron meteorites sell for very good money to collectors and researchers a very keen of the carbonaceous chondrites which are nothing to look at but primordial black rock.
Notable one during Covid:
https://www.manchester.ac.uk/about/news/rare-meteorite-recovered-in-uk-after-spectacular-fireball/
 Larger objects hit the planet and make it down to the surface less often, and the frequency drops off with size. A really big one killed off the dinosaurs about 65 million years ago.
Bolides bright enough to show on CCTV cameras and with sonic boom are not that uncommon now that we have near global surveillance.
Micro meteorites can be recovered from the black gunge accumulating in your PVC gutters with the aid of a Neodymium magnet. Some of it is magnetite from micrometeors of extra terrestrial origin.
There is a limit to haw far into the future we can predict the trajectory of a comet or asteroid. It depends how well the orbit has been determined and how close it gets to any of the other big solar system bodies. Jupiter serves as a cosmic hoover by slingshot effect putting things into orbits that typically intersect with it or get flung much further out. Shoemaker Levy 9 famously suffer that fate.
--
Martin Brown

Date Sujet#  Auteur
4 Mar 25 * Earth-grazing asteroids as a military resource30Bill Sloman
4 Mar 25 +* Re: Earth-grazing asteroids as a military resource27TTman
5 Mar 25 i+* Re: Earth-grazing asteroids as a military resource21john larkin
5 Mar 25 ii`* Re: Earth-grazing asteroids as a military resource20Bill Sloman
5 Mar 25 ii +* Re: Earth-grazing asteroids as a military resource2Carlos E.R.
5 Mar 25 ii i`- Re: Earth-grazing asteroids as a military resource1Joe Gwinn
6 Mar 25 ii `* Re: Earth-grazing asteroids as a military resource17Bill Sloman
6 Mar 25 ii  `* Re: Earth-grazing asteroids as a military resource16Carlos E.R.
6 Mar 25 ii   `* Re: Earth-grazing asteroids as a military resource15Bill Sloman
6 Mar 25 ii    `* Re: Earth-grazing asteroids as a military resource14Carlos E.R.
6 Mar 25 ii     `* Re: Earth-grazing asteroids as a military resource13Bill Sloman
10 Mar 25 ii      +* Re: Earth-grazing asteroids as a military resource8Carlos E.R.
10 Mar 25 ii      i`* Re: Earth-grazing asteroids as a military resource7Bill Sloman
11 Mar 25 ii      i `* Re: Earth-grazing asteroids as a military resource6Carlos E.R.
11 Mar 25 ii      i  `* Re: Earth-grazing asteroids as a military resource5Bill Sloman
11 Mar 25 ii      i   +* Re: Earth-grazing asteroids as a military resource2Martin Brown
12 Mar 25 ii      i   i`- Re: Earth-grazing asteroids as a military resource1Bill Sloman
11 Mar 25 ii      i   `* Re: Earth-grazing asteroids as a military resource2Carlos E.R.
12 Mar 25 ii      i    `- Re: Earth-grazing asteroids as a military resource1Bill Sloman
11 Mar 25 ii      `* Re: Earth-grazing asteroids as a military resource4Martin Brown
11 Mar 25 ii       `* Re: Earth-grazing asteroids as a military resource3Bill Sloman
11 Mar 25 ii        `* Re: Earth-grazing asteroids as a military resource2Martin Brown
12 Mar 25 ii         `- Re: Earth-grazing asteroids as a military resource1Bill Sloman
5 Mar 25 i`* Re: Earth-grazing asteroids as a military resource5Martin Brown
5 Mar 25 i +- Re: Earth-grazing asteroids as a military resource1Don Y
5 Mar 25 i `* Re: Earth-grazing asteroids as a military resource3john larkin
5 Mar 25 i  +- Re: Earth-grazing asteroids as a military resource1Martin Brown
10 Mar 25 i  `- Re: Earth-grazing asteroids as a military resource1Bill Sloman
10 Mar 25 `* Re: Earth-grazing asteroids as a military resource2legg
11 Mar 25  `- Re: Earth-grazing asteroids as a military resource1Bill Sloman

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