[meteorite-list] getting around in tucson
Hey there list. When I get to tucson, I was wondering, how am I going to get from place to place? Shuttle? Bus? Cab? Walk? Someone driving me?I do not plan to rent a car.I need suggestions please. steveSteve R. Arnold, Chicago, USA!! The Midwest Meteorite Collector! I.M.C.A. #6728 stormbringer60120.tripod.comDo you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now
[meteorite-list] Fw: Request for help
Can someone Help Jon with his addy change...message below ... Thanks Rosie - Original Message - From: "J. Fox" <[EMAIL PROTECTED]> To: "Rosemary Hackney" <[EMAIL PROTECTED]> Sent: Sunday, January 19, 2003 8:20 PM Subject: Re: Request for help > Hello Rosemary, > > I had to drop from the Meteorite Central list due to my ISP mail filter > kicking back too many messages. I sent the following subscription > request back in December, but still haven't gotten back on the list. > I wnated to get the list mail at my other email address > ([EMAIL PROTECTED]) > > _ > > Date: Fri, 13 Dec 2002 21:40:40 -0500 > From: "J FOX" <[EMAIL PROTECTED]> > Subject: subscribe > To: [EMAIL PROTECTED] > Reply To: [EMAIL PROTECTED] > > > > I am changing email addresses. I was subscribed as [EMAIL PROTECTED] > > Thanks > > _ > > Can I ask you to post this email to the list, and ask what the problem > may be? Thank you for your assistance. > > > Best regards, > > Jon Fox > __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] etching irons with ferric chloride
Howdy Listers, Just wanted to thank everyone that replied. I got great advise, and my first set of etched pieces since your replies look teriffic. Here's a recap of the feedback I got, both on and off list. (this is the condensed version): * Radio Shack PCB Etchant (Ferric Chloride) etches very quickly, and degrades foam brushes quickly, too. Diluting helps slow the etch, giving you more control, but dilute with 91% (or higher) isopropyl alcohol, NOT water. * For Gibeon's fine octahedrite structure, 600 grit sanding is most probably sufficient. Don't be afraid to go higher, either. Anything less that 600, and you'll lose quality on the etch. * My muddy patches around trollite were due to the water I was adding to the FeCl3. Thanks to all that offered help; I hope others will benefit from this aggregation of your responses! Jeff [EMAIL PROTECTED] wrote: Howdy Folks, I'm a bit new to the meteorite world, and when I read Jim Hartman's Meteorites 101 a couple months ago about etching irons, I had to give it a try. I've been etching and re-etching a gibeon slice that I had (with some visible blade marks that I wanted to grind out), and finally think I'm getting close to a good etch. However, I keep getting clouds or haze around trollite inclusions. The "rubbing" step seems to help this, but no amount of rubbing makes it fully go away. I'm following Jim's instructions as religiously as I know how (including using hot running tap water - something I was afraid of at first). I'm diluting my radio shack etchant about 1:4. Also, I'm only sanding to 400 grit, not 600 or 1200 like some suggest. Anyone else seen this kind of problem? Thanks in advance for the help, Jeff __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Sad day for astronomy
The fire in Canberra has already claimed four lives and about 400 homes. The weather forecast in the coming week is not good, continued hot weather and winds. One of the Deep Space Network tracking stations is located near Canberra, but thus far I haven't heard of any damages to the facility. Ron Baalke __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Sad day for astronomy
All, I've just received this email. One of the worlds greatest observatories has been totally destroyed. >> Fires destroy Stromlo observatory; Irreplaceable equipment worth millions of dollars was destroyed when the Canberra bushfires ravaged the historic Mount Stromlo Observatory. Research officer Vince Ford, a 38-year veteran of the observatory, told AAP staff were given 20 minutes' notice to evacuate as a fire storm on Mount Stromlo caught authorities by surprise. A single road through pine forests links the observatory, established by the Commonwealth in 1924, with suburban Canberra. "There's no way we could have saved it," Mr Ford said. The fire storm destroyed all the observatory's telescopes and the original observatory building, which dated back to 1924. "It's gone, it's all gone," Mr Ford said. "We've lost all the telescopes, the administration building, which was the original observatory back in 1924. "The first telescope has actually been there since 1910, it's gone. "The main research telescopes, the 74-inch and 50-inch, they're gone. I've just seen pictures of it from the air and we don't have a telescope left." The Australian National University (ANU) facility was one the premier astronomy training and research centres in Australia. "(It's a huge loss) from a historical point of view, from a cultural point of view, from a scientific point of view," Mr Ford said. "It's an absolute disaster." Observatory staff still hope they may be able to salvage some of their research, stored on computers in office buildings that might have escaped the worst of the blaze. The observatory offices are believed to be standing, but have been water damaged. "At least we should be able to recover the hard disks from some of the computers, but at this stage we're guessing," Mr Ford said. "All we know is the observatory is gone." Some back-up files would also have been stored at the main ANU campus in Canberra. "But a lot of the work will be at the observatory," Mr Ford said. "Some of us, being suspicious sods, have stuff at home, but most of it would have been on the computers or in the offices up at the observatory." ANU vice-chancellor Ian Chubb was due to meet observatory chiefs to be briefed on the extent of the damage. <<
[meteorite-list] Fireball Watch: Starshine 3 To Re-enter Earth's Atmosphere
Space Weather News for January 19, 2003 http://www.spaceweather.com The glittering Starshine 3 satellite, built by schoolkids and launched in Sept. 2001, will soon re-enter Earth's atmosphere. Can you spot the fireball? Re-entry estimates vary from 0500 UT (midnight EST) to 1330 UT (8:30 EST) on Tuesday, Jan. 21st. Although Starshine is likely to re-enter above some unpopulated stretch of ocean, the satellite's final orbit does carry it over North America and eastern Europe where sky watchers might see it. "There's no danger to anyone on the ground," says Prof. Gil Moore, the director of Project Starshine. "We designed the satellite so that it will be 100% consumed about 80 km up." Except for a few small steel screws the body of the spacecraft is made entirely of aluminum--a substance that will vaporize during the bright and fiery descent. Visit spaceweather.com for more information about Starshine 3 as well as links to the latest re-entry predictions (they will improve between now and Tuesday) and photo tips, too! __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Another Possible Lunar??
I wish I had a dollar for every possible Lunar, Martian, Mercury, etc. meteorite that I have seen posted to this list. Time will tell the true classification. Randy get 2 months FREE* __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Another Possible Lunar??
Hi Everyone, Aziz and I have another possible Lunar. Pics are at www.meteorites-r-us.com and are listed as "Possible Lunar". I'll be bringing this to Tucson for your views and comments!(Yes, It will also be scientifically tested, unfortunately not as quicklyas Tucson is here!!) Thanks Nels __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Martian Ejection Ages (Part 2)
Adam Hupe wrote: > I am betting that NWA 998 has a different ejection date > and crystallization age than the other five Nakhlites. > The isotope data is proving to be very interesting and > was announced at the 65th Meteoritical Society meeting. ... and pre-atmospheric sizes of martian meteorites: a) The authors estimate the minimum masses of the martian meteoroids to have been in the range of 150220 kg. b) The 36Cl concentration in Los Angeles is consistent with a meteoroid radius of 2040 cm. c) The 10Be, 26Al, and 36Cl activities in QUE 94201 indicate a pre-atmospheric radius of 2540 cm. d) For Shergotty, Bhandari et al. (1986) obtained from the 26Al concentration an effective radius of ~12 cm of the meteoroid, about half the value of 23 cm calculated by Eugster et al. e) Density of the shergottites, Nakhla, and Chassigny is about 3.23, 3.37, and 3.72 g/cm3. f) Model calculations of the upper limit of the radius of fragments ejected from Mars yield radii of <2 m. Dont these data ring a bell? The next step for meteoriticists (and several people on our List) could be to compare the existing/ recovered masses - especially of documented falls, of course, like Shergotty, Chassigny, Zagami, and Naklha (Watch out, the Nakhla Dog is back in town :-) - to these minimum pre-atmospheric sizes and thus masses. (Model) calculations involving the physics of the falls (heating and ablation, velocity, deceleration, entry angle, strewn field geometry, etc., etc.) might then give us a clue as to if there is still more recoverable material out there. In the case of Shergotty and Chassigny, most if any at all, may have weathered away in the meantime, but Zagami and Nakhla ... Well, we all know that up to 90 % of a meteorites mass is lost to ablation which would be close to Zagamis total recovered mass of about 18.1 kg (well within the 150 - 220 kg interval mentioned by Eugster et al. - 10% => 15-22 kg) but remember the authors say they are minimum masses! If only the discrepancy between the upper limit and the lower limit of the radii wasnt so huge :-( Best martian regards, Bernd Reference EUGSTER O. et al. (2002) Ejection ages from 81Kr-83Kr dating and pre-atmospheric sizes of martian meteorites (MAPS 37-10, 2002, 1345-1360) __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Stolen Chilean Meteorite from the U.C.N. museum
Dear List Colleagues Last week a Iron meteorite was stolen from the University U.C.N. Museum, Chile. Lamentably this meteorite is not classified but their approximate dimensions are 40cm height, 15cm diameter and 15kg. If you have any information or suspect about this Chilean meteorite please contact me. Only with yuor help we have a possibility of return this piece to the museum. Thank. Best Regards Rodrigo Martinez Atacama Desert Meteorites [EMAIL PROTECTED] http://www.meteorites.cl __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
