This dont pertain strictly to meteorites except that ebay has become the worlds
best source of supply but last July ebay suspended me for a week because of
something with my pearl auctions. They wouldent tell me what and a phone
conversation with the worlds rudest person told me that it would
List:
Meteorite #2 with microbes - Nakhla
http://www.newser.com/story/75307/museum-puts-martian-colony-on-display.html
Neat picture.
Greg S.
+++
(Newser) – A London museum that unwittingly hosted a fossilized
For those in Denver
Greg S.
http://www.nydailynews.com/news/national/2009/12/03/2009-12-03_now_thats_really_out_there_denver_voters_to_decide_on_possible_extraterrestrial_.html
Folks in the Mile High City think it's high time they rustled up a welcome
party for ET, whenever the cute little
Thanks Stanley.
We need a good laugh to keep warm here.
It is 16 degrees today (that's -9 Celsius) And the high of the day was 18!!
Good thing I didn't have much snow to shovel.
Anne M. Black
_http://www.impactika.com/_ (http://www.impactika.com/)
_impact...@aol.com_
Hi -
Has anyone here seen caarbonaceous chondrites with high metal content, or PGE
meteorites with carbon?
Does anyone here know of any spectral work done on dead cores of formerly
active comets?
E.P. Grondine
Man and Impact in the Americas
Hi again list.I have 30 freebies all set with 10 more that need homes.I have 13
meteorites forsale.Some old and some new. So here goes again:
--
1.NWA 062 1.4 GRAMS PART-SLICE
Does anyone have a rough estimate on how much material, say ordinary chondrite,
is lost during entry? 80% converted to light, heat and dust? 90%? 99.9%?
Thanks
--
Richard Kowalski
http://fullmoonphotography.net
IMCA #1081
__
MARS RECONNAISSANCE ORBITER HIRISE IMAGES
December 2, 2009
o Dusty Top of Alba Patera Volcano
http://hirise.lpl.arizona.edu/PSP_001510_2195
o Floor of Kasei Valles
http://hirise.lpl.arizona.edu/PSP_001456_2010
o Flows in Athabasca Valles Source Region
http://science.nasa.gov/headlines/y2009/02dec_troy.htm
Sandtrapped Rover Makes a Big Discovery
NASA Science News
12.02.2009
*December 2, 2009:* Homer's Iliad tells the story of Troy, a city
besieged by the Greeks in the Trojan War. Today, a lone robot sits
besieged in the sands of Troy while
Hi Steve,
Do any of these items for sale or give a ways come with dealer cards? Are
any of these from Bob Evan's who has been banned from this list and a good
part of the meteorite community?
--AL Mitterling
- Original Message -
From: steve arnold stevenarnold60...@yahoo.com
To:
I think that you can usually figure that 95-99% of the mass of parent
meteoroid is lost. That seems pretty consistent with the estimated mass of
observed fireballs compared with the mass of recovered meteorites.
Obviously, what is typical is pretty loosely defined; I don't doubt that
there
Hi list,
How is this calculated and how do we know the 90% to 95% loss
calculation is accurate without knowing the mass of the asteroid before
entry and after recovery of every piece that lands on the surface of our
planet?
Has there ever been such a case?
Regards,
Eric Wichman
Meteorites
There are recoveries following instrumentally recorded fireballs. Initial
mass is estimated in different ways, depending on the data available. This
includes seismic and infrasound data as well as intensity profiles, either
from cameras or spacecraft.
There are several papers which rigorously
There's a semantic tweak to whatever answer
is given. We presume on good evidence that
many meteoroids result in no meteorite at all
reaching the Earth. That is our assumption,
at any rate. In that case, the loss is... 100%
So, when we ask how much of an ordinary
chondrite is lost, are we
Hello All,
For anyone who missed tonight's airing of National Geographic's Naked
Science: Countdown to Impact, it is well worth watching any second showings
as they did a fantastic job, excellent show!! Here is a link to the web site
for info:
Whether a semantic tweak is required depends on how you look at the
question. 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
Micrometeorite impacts in Beringian mammoth tusks and a bison skull (large
photos) abstract, RB Firestone, A West, JT Hagstrum, et al, AGU Fall Meeting
2007 Dec 10-14, more Dec 16, 2009: Rich Murray 2009.12.03
http://rmforall.blogspot.com/2009_12_01_archive.htm
Thursday, December 3, 2009
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