Dear List,
I want to offer the very esthetical and fresh looking main mass of DAG463
for sale.
DAG463 was found in Libia in 1998. This main mass has a mass of 1256g.
Please have a look at my web page http://home.planet.nl/~rlenssen/DAG463.htm
Next to views of the complete mass, it contains
The other problem that clogs the system is the huge number of non-
meteorites that get sent for classification. Of the ca. 500 to 1000
meteorites that get sent per year to Arizona State University by the
public for validation, only about 5 or 10 are actually meteorites.
While most are
I was cutting an NWA the other day and noted a white chondrule among some
other smaller chondrules. Later I couldn't find the chondrule and noticed
that I can only see it at a certain angle. Don't know if chatoyancy is the
correct term for this, but it's the closest I could come. It reminds
Hi Göran, Rob, Sterling, Darren, Ed, and other nuclear meteoriticists,
What an impressive post from Göran, don't you think? Rob has given us an
interesting option to think about measuring residue from a nuclear blast
during the time frames of interest.
While I'm not able to judge the
Hello!
Mechanix Illustrated, April, 1939, p. 94, contains
this curious statement:
Apparently, only one photographer has ever been
lucky enough to snap the picture of a falling
meteorite.
As of 1939, is that true?
And who might that be? The writer does not say.
Charles P. Olivier's
Would that be the cowboy Charlie Brown's photo that Nininger used to show
around, which was a somewhat helical smoke train?
Best wishes,
Doug
- Original Message -
From: Francis Graham [EMAIL PROTECTED]
To: meteorite-list@meteoritecentral.com
Sent: Sunday, December 30, 2007 12:57 PM
--- Piper R.W. Hollier [EMAIL PROTECTED] wrote:
Or did you mean that
you estimate that
there are fewer than a dozen recovered meteorites
that were
photographed in flight?
Thanks for the clarification. Yes. I wonder how
many *different* meteorites have been photographed
coming in.
Point well taken Mike. The institutions that classify meteorites for
free have been overwhelmed with a lot of common material, much of
which consists of very small samples. Maybe we need to remember why
these institutions exist in the first place. Research of meteorites
helps academia
Hi, Rob, Doug, List,
I got only one thing to say:
Ye Gad!(olinium), I think he's got it!
The crustal abundances of gadolinium are variously
given as 5.2 to 7.7 ppm. The levels of 158Gd would be
1.5 ppm, and 157Gd would be about 1 ppm. To detect
a meaningful shift in isotope ratios,
Hi List,
Anyone recognize the [radiant or acicular] mineral habit shown in
these pictures? This piece, whatever it is, has a dull metallic
luster and is very hard and heavy.
http://i127.photobucket.com/albums/p124/
mmurray_02/2007_12_30_12_7_7.jpg
I have a piece for every type of collection and I'm offering them at 50
cents per gram or less
If you're interested in anything below please contact me off list at
bobadebt at ec.rr.com
If you want all 3 pieces make me an offer and I might accept it.
You can view an image of the pieces by
CORRECTION
I forgot to edit theaproxamate dimensions of item B
I posted them as
It's aproxamate dimensions are 60mm x 50mm x 22mm
They should be
It's aproxamate dimensions are 45mm x 45mm x 45mm
Sorry
__
http://www.meteoritecentral.com
Hello Phil;
Thanks for sharing your discovery with us.I have an unclassified meteorite
that i had purchased from Derek Bowers that has a similar characteristic to
it.The inclusions are troilite with an oriented sheen to it, in my
specimen.When
polished and etched then sprayed with clear
Hi Gran, all -
Nice reply. Thanks much for the information on photon
energy levels. But you're analyzing two different
cases...
My gut feeling is that there is at best a minute
amount of C14 created by a hyper velocity impact.
That's why the spikes in the data in the INTCAL98 C14
chart are so
If for no other reason, nostalgia may interest you in a rebroadcast of
COSMOS on The Science Channel.
Jerry Flaherty
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Meteorite-list@meteoritecentral.com
Hi all,
Where to hell is NASA money for grad students to do
this work? They always issue great press releases
about encouraging science education, but when it
really comes down to helping train the planetary
scientists of tomorrow, where the hell is NASA?
The thin slice folks from the Apollo
Hello List,
I have a question.
Years ago when tv's were young one of the problems was that
the acceleration of electrons from the cathode to the plate the screen
was that when the electron collided with the screen, Xrays were generated.
Granted that the level was not near as large as what
Hi all -
Proceeding with the evidence from the impacts of the
fragments of Comet Shoemaker Levy 9 with Jupiter, we
see photons released at x-ray energies:
http://www2.jpl.nasa.gov/sl9/gif/rosat.gif
and at gamma ray energy levels:
COMPTON GAMMA RAY OBSERVATORY
Data from the Burst and
G'day List,
Below is the first Monthly Favourite for 2008.
www.meteorites.com.au/favourite.html
Incredibly, my site will likely click over to it's 400,000th hit around the
same time we click over to 2008. My thanks go out to everyone who has helped
me with it this year or offered their
Wow! 400,000 hits! Many of those were mine. Thanks for the great site!
Every list member should check it out. My favorite is your side by side
pictorial of type three chondrites. It should be required study for all
meteorite
fans.
Thanks Jeff, Tom
In a message dated 12/30/2007
Hi Mark,
Very nice collection. Congratulations!
Bob
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mark
Crawford
Sent: Saturday, December 29, 2007 12:06 PM
To: meteorite-list@meteoritecentral.com
Subject: [meteorite-list] Meteorite photos up
Hi all,
http://search.ebay.com/_W0QQsassZastroartifacts
I just listed some rare meteorites including some extra material I acquired
from Buschhof and Misshof, another lot of cheap display cases, a Sikhote
with a huge impact crater, fresh Carancas with crust, and more.
Of special note are some rare items
The problem with X-rays from TVs wasn't with BW, but happened when
color TVs made the scene. An X-ray tube works by bombarding a metal
target with energetic electrons. Color TV tubes have a metal screen just
before the phosphor that acts as a mask to make sure the correct gun
sees only the
(Sorry if this posts twice)
Good Evening,
I just listed some rare meteorites including some extra material I acquired
from Buschhof and Misshof, another lot of cheap display cases, a Sikhote
with a huge impact crater, fresh Carancas with crust, and more.
Of special note are some rare items from
Hi all -
Proceeding with the evidence from the impacts of the
fragments of Comet Shoemaker Levy 9 with Jupiter, we
see photons released at x-ray energies:
http://www2.jpl.nasa.gov/sl9/gif/rosat.gif
and at gamma ray energy levels:
COMPTON GAMMA RAY OBSERVATORY
Data from the Burst and
Chris,
It was just a thought. I'm not up on all this High Level math and stuff.
When I got my degree, we barely had transistors, no IC's and computers
were a to die for item. Our computers were tube opperated, big as all getout,
could add 2+2 and sometimes it got 4 as the answer.
Pete
Hi Göran and List,
Göran replied:
As the temperature that is required to get kinetic fusion between atoms
is way too high to be reached in an impact that way to generate neutrons
is closed.
I think you misunderstood the long-shot mechanism I was offering up --
perhaps a language translation
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