2008TC3 at 2 to 5 meters diameter must have
weighed between 10 and 150 metric tons. The
four kilos recovered would suggest a minimum
loss of 99.96%. Of course, there could just as
easily been 40 kilos of which only 10% was
recovered (99.6% loss). Or 400 kilos of which
only 1% was recovered
With just 21 days before Christmas, the countdown is on for procrastinating
present purchasers (of which I am one). So, to help you stuff those stockings
(or boots as the case may be), the Big Kahuna is offering some delicious deals
for December, in an eBay auction ending this Saturday,
I didn't say semantic tweaks don't matter... I only said that their need
depends on how the question is phrased.
The examples you give describe variations in physical conditions, not
semantics. As I also noted in my original post, there has to be a very wide
variation in reality, making it
Hi List, I watched the National Geographic's Naked Science: Countdown to
Impact which is the story of asteroid/meteorite TC3.
What caught my attention was the diversity of material within the samples
collected. After a few years of weathering, would all those stones even
be thought to
That paper is available for free on Google Docs here:
http://tinyurl.com/yl7bvbg
--
Richard Kowalski
http://fullmoonphotography.net
IMCA #1081
--- On Fri, 12/4/09, Alexander Seidel g...@gmx.net wrote:
From: Alexander Seidel g...@gmx.net
Subject: Re: [meteorite-list] How much survives entry?
Sorry for my poorly formed query.
I certainly did not mean that we'd include meteoroids that were so small that
they completely burned up before becoming meteorites on the surface. I figured
that was a given.
My mistake.
Yes and I did try to be a bit subtle in my query and ask about an
http://www.rocksfromspace.org/December_4_2009.html
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Tom:
Very interesting point. As you may know, many of the meteorites found on Dry
Lakes are different, ranging from H3 - H6, L3 - L6 and even some LL's. I'm not
a specialist but I've thought the same. If a large asteroid (or meteor)
exploded above the area, of what is now a dry lake,
A quick search of ADS, which i probably should have done in the first place,
reveals only two papers on this and this one:
DEPTH DEPENDENCE OF 22Ne/21Ne IN ORDINARY CHONDRITES AND
ABLATION OF METEORITES V.A. Alexeev, Vernadsky Institute of Geochemistry and
Analytical Chemistry, Russian Academy
But, since John de Lancie isn't handy:
http://www.wired.com/wiredscience/2009/12/asteroid-deflection-tether/?utm_source=feedburnerutm_medium=feedutm_campaign=Feed%3A+wired%2Findex+%28Wired%3A+Index+3+%28Top+Stories+2%29%29
To Deflect an Asteroid, Try a Lasso, Not a Nuke
* By Adam Mann
*
Hi, All,
Chris said:
If you are asking how much of a meteorite's
parent body was lost, there's no problem; it's
never 100%. It is only in asking how much of a
meteoroid survives ablation that you have to deal
with the fact that it's usually 0%.
That encapsulates two ways of looking at this
Yep, there are many creative ideas on how to deflect an NEO that is found on an
impacting orbit. Many, but far from all of them are described if you follow the
many dramatic proposals link in that article.
Thought many sound interesting, if you discuss the issue with most of the
experts in the
Thanks Greg and everyone who has contacted me about the show on or off list.
I'm glad you enjoyed it. I'm sure most of the footage from everyone interviewed
ended up on the cutting room floor. They shot a lot more footage at Mt. Lemmon.
The total time was about 13 hours of effort that day.
For
Dear List Members,
I had a number of folks contact me asking what the status of the meteorite
with the HUGE Chondrule was. NWA 5486 did not sell at my initial asking
price so I loaded it back on eBay and slashed the starting price to almost
half of what I was first offering it at. With well
On Fri, 4 Dec 2009 16:24:37 -0800 (PST), you wrote:
Thought many sound interesting, if you discuss the issue with most of the
experts in the field, they'll pretty much all concede that the most likely
method to be used will be one or more nuclear weapons used in stand
off mode even if they
Hi -
While this is far from meteorites, it does concern impacts, and specifically
the Zamanshin impact.
I received grief for using the term Homo Heidelbergensis in my book for this
fellow, even though I added in a footnote that the taxonomy was confused:
Hi Darren, All,
Since it's nearly impossible to do the KYAGB manuever yourself, maybe figuring
a plan on getting acquainted with a super model instead. Best way to go, I
think.
Carl
Darren wrote:
I'll have to disagree with the experts there-- I think the most likely and
viable approach is
Chris,
Again, With all due respect.
How can you say semantic tweaks don't matter?
Semantics are everything.
I know he asked about chondrites but they do vary in density.
What if it is Iron vs, very low density like a CI1?
What if it is huge vs. tiny?
What if it is traveling at a super fast speed
Richard,
Very nice show tonight. I recorded it so I can watch again. You were very very
good! You are (the) ultimate meteorite hunter. Congrats.
I'm pretty sure it has been stated on this list that the amount burned up in
passage through the atmosphere depends on so many different factors that
Hi to all, I have some really nice meteorite samples available.
Tatahouine (Diogenite) - $10 per gram
Camel Donga (Eucrite) - $20 per gram
NWA 4734 (Lunar) - $700 per gram and up.
NWA 4857 (Martian) - $700 per gram and up.
Lunar and Martian Display cases - $20 each (nice sized fragments also)
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