[meteorite-list] What material most resist meteorite penatration?
Hmmm... The things you find on the web... http://www.phoric.cn/viewthread.php?tid=390683 Regards, Eric __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] new arizona meteorite/ freebies (AD)
I guess Tom is afraid, that Chicago-Steve will start to spam the list again with his advertisements, because impolite and ruthless as he is, he abused the list in past excessively for his sales promotions. You know Greg, we have here an agreement, that one AD per week and person is is allowed. Chicago-Steve in his normal times posted on average 4-5 ADs per week. And now I'm neither confident, as in the 2 1/2 weeks since he's back, he had 6 ADs and I fear, it's only the beginning. Problem is, Greg, that all of the 1000-1200 members do understand and respect this rule - only he doesn't. Perhaps he will listen to you... -Ursprüngliche Nachricht- Von: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] Im Auftrag von Greg Catterton Gesendet: Dienstag, 21. Juli 2009 06:56 An: meteorite-list@meteoritecentral.com Betreff: Re: [meteorite-list] new arizona meteorite/ freebies (AD) I have to agree. Steve has always been very polite and kind to me and in my opinion does not deserve such remarks. Greg C. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Regarding list content
If you are thinking about responding to the Freebies string please consider this before you make your final decision. I love you all one way or another, Peace. Elton This is for everyone on both sides: This is not per se about the source of the conflict but the way the members deal with it on the list. I am not doing this for him or too him I am trying to get us past a no win conflict. Most of us here are united in a common love for the passion of meteorites only we express that love in different ways that seem to be in conflict. I railed against a particular thing here( no not fusion crust on irons) because I felt threatened and I felt the hobby was threatened. Something woke me up and I no longer feel I need to protect others that join. Their passion will either live or die by their own decisions. I don't have to mentor them nor steer away from traps and scams. I no longer feel a need to rescue folks even when they don't want rescued. that said what I am saying next will seem an oxymoron. Regarding list discussion on a macro-level: If folks are going to defend him on the list, then it is only fair that we allow on the list also a full disclosure of the reasons he is despised. The personality alluded to is sophisticated and plays games by selectively showing bi-polar sides of his true nature. To defend the good-side without knowledge if the other side is disingenuous. I'd rather not even discuss either facet on the list, feeling anyone that wants to know the whole story is free to ask and those that don't are on their own to experience the hobby land mines and all Likewise no matter how offensive and cheated others may feel, to rage against the person is only feeding their reason for acting out. It took me a while to relearn what I already knew. There is no way to win other than to not play his game. I am sure those that only knew Dr Jekyll thought him a sweet cuddly harmless character too. If your opinion is that this is the sole nature of the beast contact me off list and I'll be happy to show you to Mr Hyde's record. It is just what it is and we collectively should deal with it in a fashion that causes the least controversy. When raged to pen off a rebuke remember if the person behind the other screen cannot control his illness, social reward and punishment has already been tried here and failed--do you really think you can control it--especially with all the enablers ready to step in? As counter-intuitive as it seems, any attention positive or negative is rewarding the behavior. I am asking everyone in the light of this knowledge to ignore his presence. Defending him, attacking him, enabling him, responding to him--yes in writing him for his freebies you are rewarding his style. If we really care about the list then everyone including the spoilers, please be totally neutral for 2 weeks at first and see if we can make it another 2 weeks at a time. So I ask everyone to not feed any of the monkeys by giving them attention on the list. I'd rather tolerate the occasional posting than fight in a no win contest. (Cage cleaning assignments have been posted) So I will not have to ever bring this up again and violate my own admonition about discussing IT. I need someone willing to provide a notarized statement/affidavit who was an eye witness to a specific someones presence in Tucson in February for a certain pending fraud case to go forward. Please contact me off list. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Regarding list content
Well Elton, there I have a different opinion than you, as I want to protect our collectors, especially the new ones, from fraud. I know of four cases, where Chicago-Steve distributed meteorites, which were not that, what he claimed they are. In one case it was even a fake and no meteorite at all. In two cases he was informed before, that the pieces were not authentic, but that didn't kept him off from selling the pieces. I have at least 3 cases, where collectors here in Germany had troubles with him, because he refused to ship the meteorites, they had won in his auctions, because he wasn't content with the result. The same problem I had once with him too. Furthermore he purchased an expensive specimen from me, didn't pay for a long time, and asked then for being allowed to pay in instalments over a long period (more than a year), because of a private emergency case. I accepted, as such things can happen. Only a short time later I saw him boasting on the list, what for specimens he just had purchased in Tucson. And additionally I saw him holding the highest bids on ebay-auctions with a total of 3000$. In my personal opinion he falls in the same category like a Turecki or an Evans and therefore I'll continue to give to the collectors the recommendation not to buy from him and to my colleagues not to sell to him, because you can't know whether he will play fast and loose with your name, your specimens or your specimen's cards. That said, I will agree with you, Elton, and won't say a word anymore to that person. Best! Martin -Ursprüngliche Nachricht- Von: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] Im Auftrag von Mr EMan Gesendet: Dienstag, 21. Juli 2009 12:49 An: meteorite-list@meteoritecentral.com; Greg Catterton Betreff: Re: [meteorite-list] Regarding list content If you are thinking about responding to the Freebies string please consider this before you make your final decision. I love you all one way or another, Peace. Elton This is for everyone on both sides: This is not per se about the source of the conflict but the way the members deal with it on the list. I am not doing this for him or too him I am trying to get us past a no win conflict. Most of us here are united in a common love for the passion of meteorites only we express that love in different ways that seem to be in conflict. I railed against a particular thing here( no not fusion crust on irons) because I felt threatened and I felt the hobby was threatened. Something woke me up and I no longer feel I need to protect others that join. Their passion will either live or die by their own decisions. I don't have to mentor them nor steer away from traps and scams. I no longer feel a need to rescue folks even when they don't want rescued. that said what I am saying next will seem an oxymoron. Regarding list discussion on a macro-level: If folks are going to defend him on the list, then it is only fair that we allow on the list also a full disclosure of the reasons he is despised. The personality alluded to is sophisticated and plays games by selectively showing bi-polar sides of his true nature. To defend the good-side without knowledge if the other side is disingenuous. I'd rather not even discuss either facet on the list, feeling anyone that wants to know the whole story is free to ask and those that don't are on their own to experience the hobby land mines and all Likewise no matter how offensive and cheated others may feel, to rage against the person is only feeding their reason for acting out. It took me a while to relearn what I already knew. There is no way to win other than to not play his game. I am sure those that only knew Dr Jekyll thought him a sweet cuddly harmless character too. If your opinion is that this is the sole nature of the beast contact me off list and I'll be happy to show you to Mr Hyde's record. It is just what it is and we collectively should deal with it in a fashion that causes the least controversy. When raged to pen off a rebuke remember if the person behind the other screen cannot control his illness, social reward and punishment has already been tried here and failed--do you really think you can control it--especially with all the enablers ready to step in? As counter-intuitive as it seems, any attention positive or negative is rewarding the behavior. I am asking everyone in the light of this knowledge to ignore his presence. Defending him, attacking him, enabling him, responding to him--yes in writing him for his freebies you are rewarding his style. If we really care about the list then everyone including the spoilers, please be totally neutral for 2 weeks at first and see if we can make it another 2 weeks at a time. So I ask everyone to not feed any of the monkeys by giving them attention on the list. I'd rather tolerate the occasional posting than fight in a no win contest. (Cage cleaning assignments have been
[meteorite-list] WHATS WITH THE ATTACKING
Good morning list.I will be real brief.The person in question about me,is tom randall.Not tom phillips!! Tom P. is as class a guy as you will ever know.I get home from work and see this in my email box.If people,who do not even know me,stop sending this to the list and do it privately,there would not be so much much spam.And for some reason,the are some list members who actually stay at home and keep records of this.Then there are some people who feel like god behind a computer and never have anything nice to say.All the attacks on me over the last 5 years,do hurt.I admit it.But HATE??? Come on,lets get over this.There is no one I hate.Overall I love this list and the great things on it.Nuff' said. Steve R. Arnold, Chicago!! __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Regarding list content
I have a similar experience. I bought a large NWA 869 full slice, half a kilo, on ebay with buy it now. At that time he didn't have a working paypal account so I had to send the money by mail. After a while he started to complaining that I hadn't paid the meteorite. Finally the letter returned as he had moved to another address and not updated his ebay account. I then tried to get the correct address but he stopped answering my email but I finally got his address on the list. I really wanted that slice for my collection and for showing people when I work as a guide on the local observatory, so I sent the money again registered. He received the money and kept it but told me that the slice was gone. I finally found out what happened, he sold it to Michael Blood for $200 and Michael had sold it on before I contacted him. Just to keep it clear, Michael Blood haven't done anything wrong and was very helpful to me when I tried to track my meteorite. So today I have nothing positive to say about Chicago-Steve, he took my money and sold my meteorite to Michael and where my meteorite is today I have no clue. /Göran Martin Altmann wrote: Well Elton, there I have a different opinion than you, as I want to protect our collectors, especially the new ones, from fraud. I know of four cases, where Chicago-Steve distributed meteorites, which were not that, what he claimed they are. In one case it was even a fake and no meteorite at all. In two cases he was informed before, that the pieces were not authentic, but that didn't kept him off from selling the pieces. I have at least 3 cases, where collectors here in Germany had troubles with him, because he refused to ship the meteorites, they had won in his auctions, because he wasn't content with the result. The same problem I had once with him too. Furthermore he purchased an expensive specimen from me, didn't pay for a long time, and asked then for being allowed to pay in instalments over a long period (more than a year), because of a private emergency case. I accepted, as such things can happen. Only a short time later I saw him boasting on the list, what for specimens he just had purchased in Tucson. And additionally I saw him holding the highest bids on ebay-auctions with a total of 3000$. In my personal opinion he falls in the same category like a Turecki or an Evans and therefore I'll continue to give to the collectors the recommendation not to buy from him and to my colleagues not to sell to him, because you can't know whether he will play fast and loose with your name, your specimens or your specimen's cards. That said, I will agree with you, Elton, and won't say a word anymore to that person. Best! Martin -Ursprüngliche Nachricht- Von: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] Im Auftrag von Mr EMan Gesendet: Dienstag, 21. Juli 2009 12:49 An: meteorite-list@meteoritecentral.com; Greg Catterton Betreff: Re: [meteorite-list] Regarding list content If you are thinking about responding to the Freebies string please consider this before you make your final decision. I love you all one way or another, Peace. Elton This is for everyone on both sides: This is not per se about the source of the conflict but the way the members deal with it on the list. I am not doing this for him or too him I am trying to get us past a no win conflict. Most of us here are united in a common love for the passion of meteorites only we express that love in different ways that seem to be in conflict. I railed against a particular thing here( no not fusion crust on irons) because I felt threatened and I felt the hobby was threatened. Something woke me up and I no longer feel I need to protect others that join. Their passion will either live or die by their own decisions. I don't have to mentor them nor steer away from traps and scams. I no longer feel a need to rescue folks even when they don't want rescued. that said what I am saying next will seem an oxymoron. Regarding list discussion on a macro-level: If folks are going to defend him on the list, then it is only fair that we allow on the list also a full disclosure of the reasons he is despised. The personality alluded to is sophisticated and plays games by selectively showing bi-polar sides of his true nature. To defend the good-side without knowledge if the other side is disingenuous. I'd rather not even discuss either facet on the list, feeling anyone that wants to know the whole story is free to ask and those that don't are on their own to experience the hobby land mines and all Likewise no matter how offensive and cheated others may feel, to rage against the person is only feeding their reason for acting out. It took me a while to relearn what I already knew. There is no way to win other than to not play his game. I am sure those that only knew Dr Jekyll thought him a sweet cuddly harmless character too. If your opinion is
Re: [meteorite-list] What material most resist meteorite penatration?
On Tue, 21 Jul 2009 00:26:56 -0700, you wrote: Hmmm... The things you find on the web... http://www.phoric.cn/viewthread.php?tid=390683 Look like somebody is planning on writing some epicly bad science fiction and is looking for some tech to throw in with the horrible writing. Either that, or fishing for an ex-wife joke. Meanwhile, browsing other questions on the site-- I've heard of cows with windows before, but never seen video before. Somehow much more disturbing than I imagined: http://www.youtube.com/watch?v=OtV3i80ZOfE __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] NOT AN AD: Being Hacked Sale!!!
40 websites and you still feel the need to bother with our humble list? This form of advertising is little more than panhandling. I need money to go meteorite hunting, tiny tim needs an operation... Thanks a lot cottingham. Give me one good reason why we should give a rats ass about your problem and I'm not talking about bandwidth. Bill, I think you are confusing Eric (meteoritesusa.com) with Michael Cottingham (VOYAGE BOTANICA NATURAL HISTORY, aka meteorite-collector on ebay) Paul Swartz __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] What material most resist meteorite penatration?
...or he's building his own spaceship in the basement for the X-Prize http://space.xprize.org/ http://space.xprize.org/ From: cyna...@charter.net To: meteorite-list@meteoritecentral.com Date: Tue, 21 Jul 2009 11:20:13 -0500 Subject: Re: [meteorite-list] What material most resist meteorite penatration? On Tue, 21 Jul 2009 00:26:56 -0700, you wrote: Hmmm... The things you find on the web... http://www.phoric.cn/viewthread.php?tid=390683 Look like somebody is planning on writing some epicly bad science fiction and is looking for some tech to throw in with the horrible writing. Either that, or fishing for an ex-wife joke. Meanwhile, browsing other questions on the site-- I've heard of cows with windows before, but never seen video before. Somehow much more disturbing than I imagined: http://www.youtube.com/watch?v=OtV3i80ZOfE __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list _ Stay on top of things, check email from other accounts! http://go.microsoft.com/?linkid=9671355 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Goodness gracious
http://www.newscientist.com/article/mg20327174.800-did-great-balls-of-fire-form-the-planets.html Did great balls of fire form the planets? 20 July 2009 by David Shiga ASTEROID-SIZED balls of magma hurtled through our infant solar system, and spray from their many collisions provided much of the raw material that formed Earth and its rocky siblings. That's according to a new take on an old theory that challenges the notion that the solar system started out as a placid sea of dust motes which simply clumped together to form planets. The early family tree of our solar system's rocky planets features tiny glassy spheres called chondrules, found today inside ancient meteorites. The origins of chondrules, which are typically about a millimetre across, are shrouded in mystery. They make up much of the material preserved in meteorites that were formed about 2 million years after the solar system began and are thought to have clumped together to form asteroid-size planetesimals, which in turn agglomerated to make Earth and its peers. Chondrules' glassy composition and spheroidal shape show that they were once molten. According to the popular view, they formed when dust grains in the nebula surrounding the infant sun were suddenly heated, perhaps when cosmic lightning or shock waves shot through the nebula. But calculations published in 2008 on the retention of sodium by the chondrules suggest they formed in dense swarms (Science, vol 320, p 1617). This is difficult to reconcile with the melting of dust motes in a nebula, which are expected to be widely spaced. Now, Ian Sanders of Trinity College Dublin in Ireland says another formation scenario, involving collisions between asteroid-sized balls of magma - kept molten through their high radioactivity - offers a better explanation. Sanders renewed the case for the idea, first proposed in the 1980s, at this week's meeting of the Meteoritical Society in Nancy, France. Decay of radioactive isotopes today helps to keep the cores of relatively large bodies like Earth molten. Sanders argues that the greater abundance of radioactive material in the fledgling solar system means that if objects larger than 30 kilometres across formed, they would have melted through. Collisions between such magma balls would breach their thin crusts of solid rock, spraying molten material into space, where the droplets would quickly cool to form chondrules. Collisions between magma balls would breach their thin crusts and spray material into space It puts a completely different slant on what happened in the early solar system in the first 2 million years, Sanders says. That is the period when chondrules formed, based on measurements of key isotopes within them. Conel Alexander of the Carnegie Institution of Washington DC, who led last year's Science study, says the high density of droplets possible in plumes ejected from magma balls could explain his team's results, but finds the idea hard to accept on other grounds. A key issue is that material within magma balls should have quickly sorted into chemically distinct layers, with iron sinking to the core and lighter elements near the surface. The chemical signature of such sorting is not present in chondrules, Alexander says. Sanders notes that some of the chondrules are indeed depleted in iron, as might be expected if they splashed from near the surface of a layered liquid body, though such chondrules are in a minority. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Basalt-Like Inclusion
Dear List, I've dusted off this stone out of my box of NWA Unclassifieds, and I think it's worth sharing. It has an interesting achondritic inclusion making up abut one third of the 97.2 gram mass, which appears similar to a basalt with skeletal ilmenite crystals. The achondritic portion is not magnetic, and the chondritic portion is moderately magnetic. The series of pictures can be viewed here: https://cid-b8a3e8caaac69704.skydrive.live.com/browse.aspx/Achondrite%20Chondrite https://cid-b8a3e8caaac69704.skydrive.live.com/browse.aspx/Achondrite%20Chondrite A second click on each photo opens full resolution. Both the scales are millimetre. All are wet with isopropyl alcohol for enhancement of details. I suspect the copper-coloured features (clearest in pics 6 and 9) to be oxidised troilite. Most are 1 - 2mm dia. If memory serves, didn't someone else on the List post pics of a similar matrix, within the past year? Opinions welcomed. Cheers, Pete _ Stay on top of things, check email from other accounts! http://go.microsoft.com/?linkid=9671355 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] The NWA 500 complete slice pictures
Dear List, Darren Wrote: I was just looking for the pictures/story about the full slice of NWA 5000 in the megacool sealed contraption, but all links I'm finding are broken. Anybody have a working link? Our answer: We removed references of NWA 5000 from the website due to advice from our consultants. The display system was designed and machined by Steven Domonkos Sr., Sr. Research Engineer, Department of Atmospheric Sciences, University of Washington for us. Steven, who is now retired, fabricated this flawless display ring to encase the world's largest slice of the moon. A poor copy was produced by Al Lang who gave credit for its design to Nelson Oaks of all people. A watch company in France, not only copied our portal idea, they went as far as referencing Jules Verne, something we have done from the beginning. It seems very few have respect for others intellectual property and designs. This slice is now referred to as the Ambassador Slice since its primary purpose, was and still is, to promote meteoritics in a positive way. It has been loaned out to several institutions free of charge. The last time it was on display was in Chicago where NASA Apollo astronaut and Moon-walker Charlie Duke used the piece as part of a presentation. Some may think it is alright to copy others hard work and ideas but we draw the line when our designs are commercialized. They should have at the very least given the original design team credit. The Ambassador Slice was intended for non-commercial promotional purposes. Not a single penny has ever been collected for loaning it out. Best Regards, Adam __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Malta Symposium on Hazardous Near Earth Asteroids
http://nea2009.cosmos.ru/ Malta Symposium on Hazardous Near Earth Asteroids Russian Cultural and Scientific Center on Malta October 12-16, 2009 *FIRST ANNOUNCEMENT* *Preface* The Year 2009 according to UNESCO is the Year of Astronomy. So many international scientific conferences, seminars and symposiums are devoted to the contemporary astronomy achievements and problems at large during this year. Among these problems high level attention was paid to the tasks connected with the asteroid hazards. It can be explained by the discovery of big enough asteroids which were very near with collision with the Earth. Very impressive example of such asteroid is Apophis whose very close Earth fly-by is not the last approach to our planet. Its further approaches to the Earth do not exclude collision. And such asteroid is not the only one which is considered as candidate for hitting the Earth with catastrophic consequences. The interest to the problem is reflected by fact that a very representative symposium on the matter was held in Spain in Granada in April and a similar conference is planned to be held in St. Petersburg in September. Because of quite clear mainly logistical reasons the participants of these two events are unfortunately different, which prevents them to exchange their knowledge and expertise. The Symposium to be organised in Malta in October 2009 will allow to overcome this deficiency: it will be held in the Russian Cultural and Scientific Centre in Malta. It will therefore be easily accessible to participants from Russia, EU and other countries. *Themes of Symposium* The main goal of the Symposium is determined by its title - /Motion Control of NEOs: Dream or Reality?/ To answer this question the following topics are planned to be included in the Symposium program: * Evaluation of the level of danger of celestial object catastrophic collision with the Earth. * Instruments and methods of detecting hazardous asteroids and determination of their motion. Estimation of asteroids ephemeris determination accuracy with the use of different approaches presently available and planned to be developed in the future. * Possibilities to use contemporary astronautics tools to determine and predict motion parameters of asteroids with required accuracy. * Existing ground facilities and required characteristics for solving the problem of hazardous asteroids. * Active and other methods and instruments for asteroids motion control in order to prevent their collision with the Earth. The list of topics given above does not restrict the items to be discussed during Symposium but gives only overall vision of the tasks area. *Organizers* The Symposium is organized by: Russian Ministry of Education and Science, Russian Cultural and Scientific Center on Malta, Space Research Institute (IKI) of the Russian Academy of Sciences (RAS), Institute of Astronomy of RAS, Institute of Applied Mathematics of RAS with the support and participation of the European Space Agency (ESA). *Registration* If you are interested to participate in this Symposium, please fill out the *Registration Form* regform.php. *Call for papers* The approximately 500-word abstract is expected to describe main ideas and problems of the paper and proposed solutions. It should be submitted not later than August 30th, 2009. The Program committee will inform the author about acceptance of the paper not later than September 10th, 2009. Abstract should not exceed 2 pages (with figures) and can be submitted as Microsoft Word DOC, PDF or TXT (plain text) files. The maximum accepted filesize is 2 MBytes. Abstracts must include the title, authors, their affiliations and text. Abstract file names should use the following template: Authorlastname_NEA2009.doc/pdf/txt (as Smith_NEA2009.pdf). You can upload your abstract using *Abstract submission form* http://nea2009.cosmos.ru/upload/. *Venue and terms* Symposium will be held within the Russian Cultural and Scientific Centre in Malta from the 12^th to the 16^th of October 2009. *Program Committee* * Lev Zelenyi, co-chairman, Space Research Institute (IKI) of Russian Academy of Sciences (RAS) * Nicolas Bobrinsky, co-chairman, ESA (ESOC) * Efraim Akim, co-chairman, Keldysh Institute of Applied Mathematics of RAS * Dr. Turki Al-Saud, Vice President, KACST, Saudi Arabia * Robert Farquhar, co-chairman, KinetX Co., USA * Vyacheslav Voronin, Ministry of Education and Science of Russia * Boris Shustov, Institute of Astronomy of RAS * Lidia Rykhlova, Institute of Astronomy of RAS * Detlef Kochny, ESA (ESTEC) * Gerhard Drolshagen, ESA (ESTEC) * Zoran Sodnic, ESA (ESTEC) * David Dunham, KinetX Co., USA * Ravil Nazirov, Space Research Institute (IKI) of RAS * Vladimir Kurt, Astro Space Center, Physical Institute of RAS * Natan Eismont, Space Research Institute (IKI) of RAS
[meteorite-list] Comet Cause a North American Die-Off
List: Take a look - Greg S. http://www.scientificamerican.com/article.cfm?id=did-a-comet-cause-die-off Researchers have found shock-synthesized hexagonal diamonds on one of California's Channel Islands, which they say is the strongest evidence yet that a comet exploded in the atmosphere above North America, causing widespread extinctions there around 12,900 years ago. Skeptics, however, say the debate is far from over. In 2007 researchers theorized that a comet set off continental fires that led to the mysterious disappearance of the Clovis people and the extermination of 35 mammal genera, including mammoths, mastodons, ground sloths and camels. The team documented a black mat of charcoal throughout North America that contains high levels of iridium, magnetic spheres, and nano-diamonds, which are consistent with such an airburst. The controversial theory also gibes with the 1908 Tunguska atmospheric detonation (also thought to be from a comet or meteorite) that leveled trees in Siberia, and it echoes the extraterrestrial impact widely believed to have wiped out the dinosaurs 65 million years ago. Today, in Proceedings of the National Academy of Sciences, the same team reports on shock-synthesized hexagonal diamonds, known only from meteorite and other impact events, in a soot layer from Arlington Canyon on Santa Rosa Island in California. The canyon is famous for containing the earliest human remains in North America, dating back to 13,000 years, and the soot layer coincides with the disappearance of the pygmy mammoth from the island. In a documentary shown earlier this year on the Public Broadcasting Service's NOVA science show, the team also claimed that they discovered similar diamonds from the Greenland Ice Sheet dating to the same period. But the evidence does not convince everyone. I don't think much of this whole story, says geochemist Christian Koeberl of the University of Vienna in Austria, Diamonds of any sort are not uniquely characteristic of impact events. He says that the major lines of evidence are still missing, including the presence of shocked minerals, including breccias and tektites as well as an impact crater. At least three other groups searched for similar evidence in the same or similar samples and found none, he adds. Briggs Buchanan, an archaeologist from Simon Fraser University in Burnaby, British Columbia, disputes the notion that humans declined following the purported impact. We have shown that in California, specifically, that there [was] no severe decline in the resident population. He adds that other researchers have shown that the black mat varies in age across the continent and appears to have a variety of geologic origins. What does the research team have to say about their doubters? I'm so skeptical about the skeptics, says marine geologist James Kennett of the University of California, Santa Barbara. We work in a different paradigm where different materials result from different kinds of impacts. _ Bing™ brings you maps, menus, and reviews organized in one place. Try it now. http://www.bing.com/search?q=restaurantsform=MLOGENpubl=WLHMTAGcrea=TXT_MLOGEN_Local_Local_Restaurants_1x1 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Strange Picture Of Steve Arnold
Well, your friend taking pics is wearing black pants with white shoes. I would go with darker color shoes with black pants or lighter pants with white shoes. Even the body language of the E.T. behind him says it all. :-D Carl Mike Hankey asks: ...Look carefully at the third pic. Very strange http://www.mikesastrophotos.com _ NEW mobile Hotmail. Optimized for YOUR phone. Click here. http://windowslive.com/Mobile?ocid=TXT_TAGLM_WL_CS_MB_new_hotmail_072009 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Strange Picture Of Steve Arnold
Thanks Carl. I will pass on the fashion advice to Bob (he's the producer of steve's show and isn't usually on camera ;0) On Tue, Jul 21, 2009 at 5:05 PM, Carl 'scarloselgua...@hotmail.com wrote: Well, your friend taking pics is wearing black pants with white shoes. I would go with darker color shoes with black pants or lighter pants with white shoes. Even the body language of the E.T. behind him says it all. :-D Carl Mike Hankey asks: ...Look carefully at the third pic. Very strange http://www.mikesastrophotos.com _ NEW mobile Hotmail. Optimized for YOUR phone. Click here. http://windowslive.com/Mobile?ocid=TXT_TAGLM_WL_CS_MB_new_hotmail_072009 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Jupiter has been whacked again
It appears than Jupiter has been hit again by something very big. I heard about it yesterday morning, but I found only old shoemaker levy stuff, different story now. http://www.space.com/scienceastronomy/090720-jupiter-new-impact.html _ Need a new model in your life? Sell your car fast. http://a.ninemsn.com.au/b.aspx?URL=http%3A%2F%2Fsecure%2Dau%2Eimrworldwide%2Ecom%2Fcgi%2Dbin%2Fa%2Fci%5F450304%2Fet%5F2%2Fcg%5F801459%2Fpi%5F1004813%2Fai%5F866383_t=758314219_r=carpoint_tagline_m=EXT __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Jupiter Adds a Feature
W. M. Keck Observatory 65-1120 Mamalahoa Hwy. Kamuela, Hawai'i July 20, 2009 Jupiter Adds a Feature Mauna Kea, Hawai'i -- Jupiter's got a brand new mark. Something slammed into the gas giant leaving a dark bruise in the planet's atmosphere, scientists at Keck Observatory confirmed early on the morning of July 20 Hawaiian Standard Time. The observation, made with the Keck II telescope, marks only the second time astronomers have seen such an impact on the planet. The first collision occurred 15 years ago, when more than 20 fragments of comet Shoemaker-Levy 9 (SL9) collided with Jupiter. The SL9 impact events were well-studied in 1994, and many theories were subsequently developed based on the observations. Now we have a chance to test these ideas on a brand new impact event, said Paul Kalas, one of the University of California Berkeley (UCB) astronomers who helped observe the latest impact. Kalas, along with Michael Fitzgerald of Lawrence Livermore National Lab and UCLA, happened to have observing time on the Keck II telescope early on the morning of Monday July 20, 2009. The two were searching for the Jupiter-like planet, Fomalhaut b, which orbits the star Fomalhaut. The star is located roughly 25 light years from Earth in the direction of the constellation Piscis Austrinus. The astronomers decided to observe Jupiter after hearing of Australian amateur astronomer Anthony Wesley's discovery of the planet's new feature, which they read about on the blog of UCB and SETI Institute astronomer Franck Marchis. Together, the group of UC astronomers collaborated on how best to make the observations of the new feature. Fitzgerald then performed the observations with the help of Keck Observatory astronomer Al Conrad. The fact that [the feature] shows up so clearly means that it's associated with high-altitude aerosols as seen in the Shoemaker-Levy impacts, noted James Graham of UCB, who also assisted with the new observations as well as the observations taken during the SL9 event in 1994. According to the new data, an impact must have created Jupiter's latest feature, the team of astronomers said. Astronomers plan to conduct further observations using the Keck II telescope and its laser-guide-star adaptive optics system later this week. IMAGE CAPTIONS: [Image 1: http://keckobservatory.org/images/gallery/press_images/jup_bb.jpg (219KB)] This infrared image taken with Keck II shows the new feature observed on Jupiter and its relative size compared to Earth. Credit: Paul Kalas (UCB), Michael Fitzgerald (LLNL/UCB), Franck Marchis (SETI Institute/UCB), James Graham (UCB) [Image 2: http://keckobservatory.org/images/gallery/press_images/Jupiter_1.jpg (308KB)] This infrared image taken with Keck II shows the new feature observed on Jupiter. Credit: Paul Kalas (UCB), Michael Fitzgerald (LLNL/UCB), Franck Marchis (SETI Institute/UCB), James Graham (UCB) __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Possible Impact Event on Jupiter?
Has anyone heard an estimate for the size of the impactor yet. If I recall correctly, for an object reaching Earth's surface with cosmic velocity, the rule of thumb is that the crater diameter is 50 times the impactors diameter. I am guessing that factor for Jupiter's cloud layer is going to be much larger, being less dense. Ron Baalke wrote: Space Weather News For July 19, 2009 http://spaceweather.com JUPITER IMPACT? On July 19th, a veteran observer of Jupiter in Australia photographed a fresh dark scar in Jupiter's cloudtops; the feature resembles the Shoemaker-Levy 9 impacts of 1994. It is possible that Jupiter has been struck anew by an asteroid or comet. Astrophotographers around the world should train their optics on Jupiter to confirm the event and monitor its progress. Visit http://spaceweather.com for photos and updates. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Possible Impact Event on Jupiter?
Right Mark, that holds for ground impacts. The apparent diameter looks roughly 3-5 earth diameters and I don't think we are missing a major planet. I presume someone will compare this to the known sizes of Shoemaker/Levy-9 to get an estimate since that it the only frame of reference we have for impacts on the gas giants. Elton --- On Tue, 7/21/09, Mark Abbott m...@mor-designs.com wrote: From: Mark Abbott m...@mor-designs.com Subject: Re: [meteorite-list] Possible Impact Event on Jupiter? To: Viagra.com meteorite-list@meteoritecentral.com Date: Tuesday, July 21, 2009, 5:39 PM Has anyone heard an estimate for the size of the impactor yet. If I recall correctly, for an object reaching Earth's surface with cosmic velocity, the rule of thumb is that the crater diameter is 50 times the impactors diameter. I am guessing that factor for Jupiter's cloud layer is going to be much larger, being less dense. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Possible Impact Event on Jupiter?
Hi Mark: For Earth, 20 times (give or take), not 50. This new spot, from what I can tell, looks to be on the small end of the SL9 impactors, so we are talking about under a kilometer in diameter, I would guess. Also, it is likely that this event came in at a higher velocity than SL9 since they were actually in orbit around Jupiter at the time so hit with velocities under 70 km/s (Jupiter has a larger gravity than Earth). Since there is probably no way of know the exact velocity of this impactor, the size may be hard to determine (comet or asteroid, prograde or retrograde, etc.). Larry Has anyone heard an estimate for the size of the impactor yet. If I recall correctly, for an object reaching Earth's surface with cosmic velocity, the rule of thumb is that the crater diameter is 50 times the impactors diameter. I am guessing that factor for Jupiter's cloud layer is going to be much larger, being less dense. Ron Baalke wrote: Space Weather News For July 19, 2009 http://spaceweather.com JUPITER IMPACT? On July 19th, a veteran observer of Jupiter in Australia photographed a fresh dark scar in Jupiter's cloudtops; the feature resembles the Shoemaker-Levy 9 impacts of 1994. It is possible that Jupiter has been struck anew by an asteroid or comet. Astrophotographers around the world should train their optics on Jupiter to confirm the event and monitor its progress. Visit http://spaceweather.com for photos and updates. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite Limericks
The once was a man from Peekskill, who chased every bolide with zeal He'd only find lunaites, and scoffed at mere chondrites So we put a bug on his automobile! ;) -- . Michael Gilmer (Florida, USA) Member of the Meteoritical Society. Website - http://www.galactic-stone.com Personal Site - http://www.glassthrower.com FaceBook - http://www.facebook.com/galacticstone MySpace - http://www.myspace.com/fine_meteorites_4_sale Twitter - Twitter - http://twitter.com/GalacticStone eBay - http://shop.ebay.com/merchant/maypickle .. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD: Meteorite Men Collectibles
Hey List, Well, it was interesting to see how the Meteorite Men collectible slabs went on Ebay this past week. I was genuinely surprised to see the complete set of 18 go actually go for more than the 18 individuals did. I thought it would have been the other way around. Usually volume sales is where the discounts are. This first listing was a test. And as part of the test, investing time to load on things on Ebay is fine. But the results of the test show that listing some to only get from $1 to $4 final bid isn't worth the fees or the time to do so. There are other venues to better move low cost items than the high fee and high labor task of posting on Ebay. However, some of the individuals that brought up over the $10 range take the same time to list, and the fees are close to the same, but the profit is more worth the time cost. The test shows that selling complete sets also might be worth the effort since the first one brought a bit of a premium. I only have 4 more complete sets. So, I am haven't decided yet if I want to list more on Ebay or not... But I figured if anyone on the list might be interested in some of these directly from me, let's skip Ebay and we can talk one on one. Thanks Steve Arnold of Meteorite Men . **A Good Credit Score is 700 or Above. See yours in just 2 easy steps! (http://pr.atwola.com/promoclk/100126575x1221823310x1201398722/aol?redir=http://www.freecreditreport.com/pm/default.aspx?sc=668072hmpgID=62bcd= JulystepsfooterNO62) __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD - Another batch done!
Hello everybody, Yes, another batch posted, and a big one, some 60 pieces. And a very ecclectic bunch it is. Some with names you all know, like Mighei, Ivuna, Divnoe, Renazzo, Vigarano. And others less famous but no less interesting like Albion, Coldwater, Heredia, Clark County) And of course a nice large etched slice of Esquel. As I said a very ecclectic bunch. Just go take a look: _http://www.impactika.com/Metlist.htm_ (http://www.impactika.com/Metlist.htm) And do let me know if you have any questions. Thanks. Anne M. Black http://www.impactika.com/ impact...@aol.com Vice-President, I.M.C.A. Inc. http://www.imca.cc/ **What's for dinner tonight? Find quick and easy dinner ideas for any occasion. (http://food.aol.com/dinner-tonight?ncid=emlcntusfood0009) __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
