[meteorite-list] Classic Ebay Letter

2009-12-03 Thread dean bessey
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

Re: [meteorite-list] 13 years later - Martian meteorite surrenders new secrets

2009-12-03 Thread Greg Stanley
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

[meteorite-list] Thought this was hilarious – For Those in Denver

2009-12-03 Thread Greg Stanley
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

Re: [meteorite-list] Thought_this_was_hilarious

2009-12-03 Thread Impactika
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_

[meteorite-list] Are there metals at the cores of larger comets?

2009-12-03 Thread E.P. Grondine
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

[meteorite-list] new and old meteorites forsale (AD)

2009-12-03 Thread steve arnold
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

[meteorite-list] How much survives entry?

2009-12-03 Thread Richard Kowalski
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 __

[meteorite-list] MRO HiRISE Images - December 2, 2009

2009-12-03 Thread Ron Baalke
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

[meteorite-list] Sandtrapped Rover Makes a Big Discovery

2009-12-03 Thread Ron Baalke
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

Re: [meteorite-list] new and old meteorites forsale (AD)

2009-12-03 Thread al mitt
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:

Re: [meteorite-list] How much survives entry?

2009-12-03 Thread Chris Peterson
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

Re: [meteorite-list] How much survives entry?

2009-12-03 Thread Meteorites USA
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

Re: [meteorite-list] How much survives entry?

2009-12-03 Thread Chris Peterson
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

Re: [meteorite-list] How much survives entry?

2009-12-03 Thread Sterling K. Webb
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

[meteorite-list] 2008 TC3 - NatGeo TV

2009-12-03 Thread Greg Hupe
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:

Re: [meteorite-list] How much survives entry?

2009-12-03 Thread Chris Peterson
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

[meteorite-list] 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, 20

2009-12-03 Thread Rich Murray
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