Re: [meteorite-list] Meteorite Deaths? Interesting old article-read
Hi Sterling: The events quoted by you from John Lewis' book are open to interpretation. Similar interpretations give us: Ezekiel saw a flying saucer And, for those who like interpretations of the Bible and other writings: Joshua made the Earth stand still: This was due to the fact that Venus was a comet that was spun off(?) from Jupiter (do not remember if this was the source of the Great Red Spot) and flew by the Earth twice before becoming a new planet. My memory is a little hazy on this, but I think this is also the source of our oil. [I. Velikovsky] I think that it has been claimed that this was confirmed when we found out that Venus was hot, having been predicted by Velikovsky. Larry PS Sterling: Are you going to make me go back a reread the book to give you more specific references? Hi, Matt, List, On September 14, 1511, in Cremona in Lombardy, Italy, a monk, several birds, and a sheep were killed by meteorites. Sometime between 1647 and 1654, two sailors on a ship en route from Japan to Sicily, while in the Indian Ocean, were killed by meteorites. Sometime between 1633 and 1664, a monk in Milan was killed by a meteorite which severed his femoral artery, causing him to bleed to death. Chinese records of lethal impact events include the death of 10 victims from a meteorite fall in 616 AD, an iron rain in the O-chia district in the 14th century that killed people and animals, several soldiers injured by the fall of a large star in Ho-t'ao in 1369, and many others. The most startling is a report of an event in early 1490 in Ch'ing-yang, Shansi, in which many people were killed when stones fell like rain. Of the three known surviving reports of this event, one says that over 10,000 people were killed, and one says that several tens of thousands were killed. There is a discussion of these and many more such incidents in John S. Lewis, Rain of Iron and Ice, 1996. One could collect pages and pages of early accounts of meteorite falls and pages more of events that could well be meteoritic although those that wrote the accounts did not know of the idea that stones could fall from the sky. You could fill a book... and people have. A catalogue of meteorites is not a book of reported falls; it is a book of collected and curated falls. The oldest curated stone is NOGATA, which fell May 19, 861 AD. It hit a shrine and has been kept there ever since. The meteorite that hit a house in NARA (then the capital city of Japan) in 764 AD doesn't count because nobody has it safely curated. ...can they be substantiated? No more or less than the rest of history. They tell me Julius Caesar was assassinated. That's the story. Most agree that it happened. No one wrote to deny it. It's the story I always heard, so I believe it, like I do all the rest of history. But I wasn't there, I haven't checked the DNA on the dagger, I don't know where he was buried, I haven't read the autopsy report. I'm more than a carpet fiber away from proving the case... Three Chinese historical chronicles recount the huge meteorite fall and thousands of deaths in Ch'ing-yang, Shansi, in late February or early March of 1490. It's as much history as Caesar's assassination is, no more, no less. It's as substantiated as any history. There were no Ming Dynasty tabloid news stories. History-writing was politically sensitive and historians were occasionally executed for falsity, particularly about heavenly events. Sterling K. Webb --- - Original Message - From: m...@mhmeteorites.com To: meteorite-list@meteoritecentral.com Sent: Monday, December 28, 2009 3:18 PM Subject: [meteorite-list] Meteorite Deaths? Interesting old article-read A friend sent this link to me in regard to the Bear Creek meteorite. http://www.coloradohistoricnewspapers.org/Repository/ml.asp?Ref=Uk1ELzE4NjYvMDUvMTQjQXIwMDIwMA==Mode=GifLocale=english-skin-custom Near the end of the text it details the deaths of 3 monks and 2 Swedish sailors by meteorite impact! Has anyone heard of this? The passage reads: A few instances are on record of buildings being struck and set on fire and persons struck dead by the fall of aerolites. These Three monks were killed, one on the 4th September 1611, at Crema (?), another at Milan, in 1650, and a third in the same place in 1660. In 1674 two Swedish sailors on board ship were killed by the fall of one. Having never heard of this I searched the Catalog of Meteorites and came up blank. Has anyone heard of these falls and can they be substantiated? Matt Morgan __ 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] Jim Kriegh's birthday
Bernd asked me to post this to the list: Hello List, Today would have been Jim's eightieth birthday. All the very best to you, Jim, up there on your little asteroid in the heavens above! Bernd __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD - Last Auctions Of The Year Ending
Dear List Members, Just a quick reminder that my last auctions of the year will be ending this afternoon. You will find a lot of bargains. Martian material in particular, has for the most part, been selling below my costs and cannot be replaced once gone. Everybody knows that the Sahara has only been producing a fraction of the meteorites that were once coming out. It is just a matter of time before prices escalate spectacularly. I predict within 12 months collectors will be kicking themselves for not taking advantage of the lowest prices in a decade. All Auctions Can Be Found At This link: http://shop.ebay.com/merchant/raremeteorites!_W0QQ_nkwZQQ_armrsZ1QQ_fromZQQ_mdoZ Thank you for looking and if you are bidding, the best of luck, Adam __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite deaths
Hi Paul - Has anyone ever thought of going to those fall sites in China and hunting them? Or doing archeology in the case of the larger falls? E.P. Grondine Man and Impact in the Americas __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite Deaths? Interesting old article-read
One of the instances of a reported meteorite fall that resulted in human deaths that Sterling K. Webb quoted: The most startling is a report of an event in early 1490 in Ch'ing-yang, Shansi, in which many people were killed when stones fell like rain. Of the three known surviving reports of this event, one says that over 10,000 people were killed, and one says that several tens of thousands were killed. Does anyone know where Ch'ing-yang, Shansi is in China? I ask this question because, unlike many of the other alleged meteorite falls reported to have caused either injury or death to humans, this fall, as reported, would have been extensive enough to have left behind some sort of findable physical evidence in the form of actual meteorites. Applying the basic principles of geomorphology, Quaternary geology, and site formation processes as developed by archaeologists, a well- trained Quaternary geologist, archaeological geologist, or geomorphologists should be able to locate the landforms and colluvial or fluvial deposits of the right age in which any of these numerous meteorites would have been concentrated and either them or their weathered remains possibly preserved For example, on landforms that predate 1490, the meteorites would have been buried by bioturbation. As the local soils were churned by farming and soil fauna, any meteorites that would have fallen on the land surface would have eventually sunk to the base of the soil's biomantle. As a result, they would be concentrated as a layer at the base of bioturbation called a carpedolith. In gullies and other exposures, they would occur as a stone line at the base of the biomantle. Also, using what is known about the archaeology and geomorphology of the area, a person could locate the buried land surfaces or deposits of the right age and origin that should contain these meteorites, if they indeed exist. This is the sort of methodology I discuss in relationship to the alleged tektites found in Rapides Parish, Louisiana in Reevaluation of Tektites Reported from. Rapides Parish, Louisiana at either: http://www.lgs.lsu.edu/deploy/uploads/Summer_09_LGS_Newsletter.pdf or http://www.scribd.com/doc/18698759/Alleged-Tektites-From-Rapides-Parish-Louisiana A hypothetical stone line can be seen in Animation on Dynamic Denudation/Biomantle Evolution at; https://netfiles.uiuc.edu/jdomier/www/temp/biomantle.swf and discussed in: Johnson, D. L., 1989, Subsurface Stone Lines, Stone Zones, Artifact-Manuport Layers, and Biomantles Produced by Bioturbation via Pocket Gophers (Thomomys Bottae). American Antiquity. vol. 54, no. 2, pp. 370-389 http://www.jstor.org/pss/281712 and Johnson, D. L., 1990, Biomantle Evolution and the Redistribution of Earth Materials and Artifacts. Soil Science. vol. 149, no. 2, pp. 84-102. http://journals.lww.com/soilsci/Abstract/1990/02000/Biomantle_Evolution_and_the_Redistribution_of.4.aspx Meteorites will behave very much like the artifacts discussed in the above paper. Yours, Paul H. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Solar-Radiation Heating Effects on 3200 Phaethon
Hello list, My paper entitled Solar-Radiation Heating Effects on 3200 Phaethon was finally published in the latest issue of PASJ, as follows, http://pasj.asj.or.jp/v61/n6/610621/610621.pdf, of which PDF file is freely downloadable now. Katsu OHTSUKA __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite deaths
Grondine asked: Has anyone ever thought of going to those fall sites in China and hunting them? Or doing archeology in the case of the larger falls? I have not heard of anyone attempting to find evidence of the larger falls. However, that does not mean much because usually the results of such research when it is negative (nobody finds anything) is typically not published simply because either the authors or editors do not consider such negative results as being significance enough to publish. It is a very good question for which I do not have an answer. Yours, Paul H. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Solar-Radiation Heating Effects on 3200 Phaethon
Dear Katsu: Thanks for sending out this article. Larry Lebofsky Hello list, My paper entitled Solar-Radiation Heating Effects on 3200 Phaethon was finally published in the latest issue of PASJ, as follows, http://pasj.asj.or.jp/v61/n6/610621/610621.pdf, of which PDF file is freely downloadable now. Katsu OHTSUKA __ 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] Meteorite deaths
Paul: For all of his research on these falls, Lewis did not make any effort to try to validate the events beyond his interpretation of the writings. It has been a long time since I read the book or talked to him about it. Larry Grondine asked: Has anyone ever thought of going to those fall sites in China and hunting them? Or doing archeology in the case of the larger falls? I have not heard of anyone attempting to find evidence of the larger falls. However, that does not mean much because usually the results of such research when it is negative (nobody finds anything) is typically not published simply because either the authors or editors do not consider such negative results as being significance enough to publish. It is a very good question for which I do not have an answer. Yours, Paul H. __ 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] Solar-Radiation Heating Effects on 3200 Phaethon
Katsu, Thank you for the paper. The Abstract alone explains how its possible for different parts of an asteroid to undergo substantially different metamorphosis, providing substantially different meteoroids/meteorites and the variety in finds, in some meteorites. Jerry Flaherty -- From: Katsu OHTSUKA ohts...@jb3.so-net.ne.jp Sent: Tuesday, December 29, 2009 11:07 AM To: meteorite-list@meteoritecentral.com Subject: [meteorite-list] Solar-Radiation Heating Effects on 3200 Phaethon Hello list, My paper entitled Solar-Radiation Heating Effects on 3200 Phaethon was finally published in the latest issue of PASJ, as follows, http://pasj.asj.or.jp/v61/n6/610621/610621.pdf, of which PDF file is freely downloadable now. Katsu OHTSUKA __ 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] Grimsby Meteorite article
Just read this article in the Hamilton Spectator re Grimsby meteorite http://www.thespec.com/News/Local/article/696644 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] The Moon on Everest.
On May 20. 2009 Astronaut Scott Parazynski summited Mt Everest. NASA allowed him to carry a specimen of the moon brought back on Apollo 11 to the top of the world. The Discovery channel has started airing the third season of Everest, Beyond the Limit and Scotts story will air again on the Discovery Channel Dec 30 at 8pm Eastern US time. I have seen the segment and it is certainly worth watching. Photo of Scott holding the Apollo 11 sample on Everest: http://blogs.discovery.com/.a/6a00d8341bf67c53ef01156fba58c9970c-pi Scott's Blog written last Spring: http://onorbit.com/node/1047 Everest, Beyond the Limit on the Discovery Channel website: http://dsc.discovery.com/convergence/everestbeyond/everestbeyond.html Jim Strope 421 Fourth Street Glen Dale, WV 26038 http://www.catchafallingstar.com/ On eBay: http://members.ebay.com/ws/eBayISAPI.dll?ViewUserPageuserid=catchafallingstar.com __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] NASA Chooses Three Finalists for Future Space Science Mission to Venus, an Asteroid or the Moon
Dec. 29, 2009 Dwayne Brown Headquarters, Washington 202-358-1726 dwayne.c.br...@nasa.gov RELEASE: 09-296 NASA CHOOSES THREE FINALISTS FOR FUTURE SPACE SCIENCE MISSION TO VENUS, AN ASTEROID OR THE MOON WASHINGTON -- NASA has selected three proposals as candidates for the agency's next space venture to another celestial body in our solar system. The final project selected in mid-2011 may provide a better understanding of Earth's formation or perhaps the origin of life on our planet. The proposed missions would probe the atmosphere and crust of Venus; return a piece of a near-Earth asteroid for analysis; or drop a robotic lander into a basin at the moon's south pole to return lunar rocks back to Earth for study. NASA will select one proposal for full development after detailed mission concept studies are completed and reviewed. The studies begin during 2010, and the selected mission must be ready for launch no later than Dec. 30, 2018. Mission cost, excluding the launch vehicle, is limited to $650 million. These are projects that inspire and excite young scientists, engineers and the public, said Ed Weiler, associate administrator for the Science Mission Directorate at NASA Headquarters in Washington. These three proposals provide the best science value among eight submitted to NASA this year. Each proposal team initially will receive approximately $3.3 million in 2010 to conduct a 12-month mission concept study that focuses on implementation feasibility, cost, management and technical plans. Studies also will include plans for educational outreach and small business opportunities. The selected proposals are: The Surface and Atmosphere Geochemical Explorer, or SAGE, mission to Venus would release a probe to descend through the planet's atmosphere. During descent, instruments would conduct extensive measurements of the atmosphere's composition and obtain meteorological data. The probe then would land on the surface of Venus, where its abrading tool would expose both a weathered and a pristine surface area to measure its composition and mineralogy. Scientists hope to understand the origin of Venus and why it is so different from Earth. Larry Esposito of the University of Colorado in Boulder, is the principal investigator. The Origins Spectral Interpretation Resource Identification Security Regolith Explorer spacecraft, called Osiris-Rex, would rendezvous and orbit a primitive asteroid. After extensive measurements, instruments would collect more than two ounces of material from the asteriod's surface for return to Earth. The returned samples would help scientists better undertand and answer long-held questions about the formation of our solar system and the origin of complex molecules necessary for life. Michael Drake, of the University of Arizona in Tucson, is the principal investigator. MoonRise: Lunar South Pole-Aitken Basin Sample Return Mission would place a lander in a broad basin near the moon's south pole and return approximately two pounds of lunar materials for study. This region of the lunar surface is believed to harbor rocks excavated from the moon's mantle. The samples would provide new insight into the early history of the Earth-moon system. Bradley Jolliff, of Washington University in St. Louis, is the principal investigator. The proposals were submitted to NASA on July 31, 2009, in response to the New Frontiers Program 2009 Announcement of Opportunity. New Frontiers seeks to explore the solar system with frequent, medium-class spacecraft missions that will conduct high-quality, focused scientific investigations designed to enhance understanding of the solar system. The final selection will become the third mission in the program. New Horizons, NASA's first New Frontiers mission, launched in 2006, will fly by the Pluto-Charon system in 2014 then target another Kuiper Belt object for study. The second mission, called Juno, is designed to orbit Jupiter from pole to pole for the first time, conducting an in-depth study of the giant planet's atmosphere and interior. It is slated for launch in August 2011. For more information about the New Frontiers Program, visit: http://newfrontiers.nasa.gov -end- __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite Fall Or Not?
Hi List, I haven't really been following this but here's another report about the fireball back on Dec 19th over Wisbech, Cambridgeshire UK http://www.fenlandcitizen.co.uk/news/Meteorite-falls-over-Wisbech.5943609.jp Any other word on this fireball? Regards, Eric Wichman Meteorites USA __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite Deaths? Interesting old article-read
The falls you mention seem to be concentrated around the era in the Western hemisphere loosely called 'the Dark Ages.' While I have no reason to doubt that the people involved died, possibly even by meteorite, I find it odd that so many fatalities happened within a relatively limited time span, and they were identified as 'death by meteorite'. It wasn't until the 17- or 1800s that scientists even believed that rocks could fall from the sky. I'd want more proof before I wrote up that CSI report! Best! Tracy Latimer From: sterling_k_w...@sbcglobal.net One could collect pages and pages of early accounts of meteorite falls and pages more of events that could well be meteoritic although those that wrote the accounts did not know of the idea that stones could fall from the sky. You could fill a book... and people have. _ Hotmail: Free, trusted and rich email service. http://clk.atdmt.com/GBL/go/171222984/direct/01/ __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Online Impact Cratering Powerpoint Presentations
Dear Friends, Out of curiosity, I did an Advanced Google search for impact cratering while restricting the file type to ppt (Powerpoint presentation) format. I found a number of interesting Powerpoint presentations. They included: 1. Impact Cratering Mechanics and Morphologies http://www.lpl.arizona.edu/grad/classes/spring2008/Melosh_596f/Lecture3.ppt 2. Impact Cratering Dating by Nathan Marsh http://www.lpl.arizona.edu/~shane/PTYS_395_MOON/presentations/marsh_cratering_dating.ppt 3. Impact Cratering by Virginia Pasek http://www.lpl.arizona.edu/~shane/PTYS_395_MOON/presentations/pasek_catering.ppt 4. Impact Cratering Mechanics and Morphologies http://www.lpl.arizona.edu/~shane/PTYS_411_511/lectures/PTYS_411_511_cratering_mechanics_morphologies.ppt 5. Impact Cratering Lecture 3, Impact Cratering Lecture 3 http://www.lpl.arizona.edu/grad/classes/spring2008/Melosh_596f/Lecture3.ppt 6. Impact Craters http://www.astro.ufl.edu/~paola/imp_cra.ppt 7. Terrestrial Geology Basics http://planetologia.elte.hu/impact.ppt 8. MORPHOLOGY of IMPACT CRATERS Henrik Hargitai http://planetologia.elte.hu/impact.ppt 9. Apocalypse Maybe: Unlikely Doomsday Scenarios for the End of the Earth http://www.lsa.umich.edu/UMICH/physics/Home/Seminars%20and%20Colloquia/Saturday%20Morning%20Physics/Previous%20Years/Saturday%20Morning%20Physics%20Fall%202006/ER_2006.ppt Yours, Paul H. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Wanted: Weston
All, Looking to acquire Weston specimens of at least .5 gm in size. OFF LIST please... Thanks, Dave Dave Gheesling IMCA #5967 www.fallingrocks.com __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Questions About 1490 Ch'ing-yang, Shansi Event
Larry wrote: For all of his research on these falls, Lewis did not make any effort to try to validate the events beyond his interpretation of the writings. It has been a long time since I read the book or talked to him about it. This brings up some questions about the alleged 1490 falls in Ch'ing-yang, Shansi, China. 1. Are exact citations and translations of the text from the reports that Lewis interpreted as describing an massive meteorite fall and thousands of death in 1490 available anywhere? 2. Has anyone else examined and commented in detail on the contents of these reports in regard to a possible meteorite fall and associated deaths in 1490? Given the nature of the proposed 1490 meteorite fall, it would be quite fascinating to be able to read the translations of the primary Chinese text and learn exactly what is written in them about this event. If there is any credible information at all in in these reports that supports such a massive event, it seems like a person could prepare a publishable paper alone that presents the translated text concerning what, if anything, happened in 1490, and the text's interpretation. Because of the spectacular nature of this hypothesized event, it seems like more could be written about it then the short excerpts that I have been able to find. Yours, Paul H. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite Deaths? Interesting old article-read
Hi, Larry, List, The events quoted by you from John Lewis' book are open to interpretation. This you quickly spin to UFO's and I. Velikovsky in the very next sentence and following paragraph. Ridiculous. There is nothing like that in Lewis' book. Such a lame response puzzles me. I realize that Lewis' views are not popular with the community. Never really undestood why. To me he seems emminently reasonable. Perhaps it is merely an inevitable consequence of conflict between those who like (and want to assert) a cozy and orderly universe with none but minor upsets and those who point out it just ain't so, bub. Open to interpretation? I don't see it. Are you telling me that the monk, several birds, and a sheep... killed by meteorites was really a nun, some squirrels and a goat killed by stones thrown by hooligans? Or that it never happened? Got a contemporary reference for that? Lewis did not make any effort to try to validate the events... Lewis was very clear that his was a records search (of the sort which almost all of historical research is) of what historians call primary sources. He does sometimes finds multiple references to an event, but that is rare in the Dark and Middle Ages. See the opening of Chap. 13 of Rain of Iron and Ice. Not field work. Paul's response suggests that field work could be profitable if the site could be located. That took me by surprise; I assumed too much time had passed. It's an exciting thought. Most of the bulk of my post involved the old Chinese recorded incidents. Lewis took those from the Yau, Weissman and Yeomans' paper: Yau, K., P. Weissman, and D. Yeomans. Meteorite Falls in China and Some Related Human Casualty Events. Meteoritics 29, 864-871. The full text is available here: http://adsabs.harvard.edu/full/1994Metic..29..864Y If there is any controversy about the Yau paper (in the sense of articles that dispute the data or conclusions), I can't find any despite my Googlestorm for Yau et al. 1994 meteorite.. Quoted below are a summary and some comments from: http://farshores.org/ameteo.htm The... study by Yau et al is based upon an in-depth review of the catalogues and ancient texts that document the fall of meteorites in China. Their research has found that 337 meteorites were observed... in China between 700 BC and AD 1920. Given that the area of China is 9.6 million square kilometres, Yau et al (1994) find that the average number of meteorite falls, in China, is 0.1 per year per million square kilometres. [Please note that this is 80 times smaller than the MORP estimate and that's too small by 3-4 fold, so the Yau estimate is modest, to say the least. -- SKW] One of the most interesting results of the new study was revealed when a plot of the number of meteorite falls per century was made. To their amazement, Yau and coworkers found a distribution which showed two peaks of higher than expected activity. An enhanced number of meteorite falls were recorded between circa 1550 to 1750 and from circa 1840 to 1880. Unfortunately, it is not easy to understand what the peaks might mean. The completeness of the accounts is not known, and the observed rate of falls has to be de-biased for the effects of an increasing population. That is, as the population increases so the chances of someone observing a fireball, and the fall of its accompanying meteorite, increases. One explanation of the peaks is that they are due to the existence of meteorite swarms... This idea is not a new one, but it is controversial. If nothing else, given that the peaks are real, and Yau et al offer some statistical arguments to suggest that they might be, they clearly imply that there are long-term variations in the rate at which meteorites fall to Earth... In the course of their investigations, Yau and co-workers came across seven accounts of meteorite falls in which human fatalities and injuries were recorded. In AD 616, for example, it is reported that a large shooting star like a bushel fell onto the rebel Lu Ming-yueh's camp. It destroyed his wall-attacking tower and crushed to death more than ten people. Another account from 1341 reads, it rained iron in Chin-ning. They damaged crops. Most of the people and animals struck by them were killed. The most recent account uncovered by Yau et al relates to a fall (or April 25, 1915) in which a woman had her arm torn off at the shoulder. [A twentieth-century Swedish man lost his arm to a meteorite also; it was buried with him, the arm, not the meteorite -- ST] On the entire question of pre-scientific historical documents, the degree to which ancient chronicles may be relied upon for observations of astronomical events may be gauged by a glance at this list of papers: http://hbar.phys.msu.ru/gorm/eclipse.htm The Lewis List or an expanded version of it is widely quoted on websites from sober to whacky (who add Firestone, who is whacky, and Baillie, who is not). He's not responsible for that. Or do you hold him
[meteorite-list] What The???
You guys are gonna love this... ;) http://maps.google.com/maps?source=embedlayer=ccbll=42.36396,13.368008cbp=13,320.72,,0,-29.96ie=UTF8panoid=K0Hv_pLb98MJa2Cd_QcH2wll=42.363907,13.367907spn=0,359.997589z=19 Regards, Eric Wichman Meteorites USA __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] What The???
Tree branch? Cheers, Jeff - Original Message - From: Meteorites USA e...@meteoritesusa.com To: meteorite-list@meteoritecentral.com Sent: Wednesday, December 30, 2009 12:52 PM Subject: [meteorite-list] What The??? You guys are gonna love this... ;) http://maps.google.com/maps?source=embedlayer=ccbll=42.36396,13.368008cbp=13,320.72,,0,-29.96ie=UTF8panoid=K0Hv_pLb98MJa2Cd_QcH2wll=42.363907,13.367907spn=0,359.997589z=19 Regards, Eric Wichman Meteorites USA __ 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] What The???
Good guess Jeff... ;) http://maps.google.com/maps?source=embedlayer=ccbll=42.364482,13.366814cbp=13,259.02,,0,-24.58ie=UTF8panoid=kTpI1__Z3n4n9h0p6l56ngll=42.364422,13.36699spn=0,359.995872z=19 ;( I know if any of you were like me at first it was slightly hopeful but alas, it is just a tree branch. ;) Cool looking though huh? Regards, Eric On 12/29/2009 6:02 PM, Jeff Kuyken wrote: Tree branch? Cheers, Jeff - Original Message - From: Meteorites USA e...@meteoritesusa.com To: meteorite-list@meteoritecentral.com Sent: Wednesday, December 30, 2009 12:52 PM Subject: [meteorite-list] What The??? You guys are gonna love this... ;) http://maps.google.com/maps?source=embedlayer=ccbll=42.36396,13.368008cbp=13,320.72,,0,-29.96ie=UTF8panoid=K0Hv_pLb98MJa2Cd_QcH2wll=42.363907,13.367907spn=0,359.997589z=19 Regards, Eric Wichman Meteorites USA __ 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] [specialastrooptics] Special Lenses for Astronomy
New Newsgroup on Yahoogroups.ca Ed Begin forwarded message: From: Ed epmaj...@shaw.ca Date: December 29, 2009 12:15:02 PM PST To: specialastroopt...@yahoogroups.ca Subject: [specialastrooptics] Special Lenses for Astronomy Reply-To: specialastroopt...@yahoogroups.ca I created this newsgroup in order to obtain information on special optical lenses like surplus military lenses, ultra high speed lenses for use in faint meteor recording, direct image on film, with image intensifiers, etc. I am especially interested in the Super Farron f/0.87 - 72 mm f.l. lens that was used by NASA/LRC for a faint meteor spectra patrol back in the 1960/70s. This type of lens was used for aero imaging, x-ray imaging, and CRT recording. I have the latter which is designed for 4:1 imaging of a CRT screen. My question is, can you make this lens focus on objects at infinity? Does anyone have any information on this lens type? I can't get it to focus on objects at infinity unless I remove one of the rear elements. Is this a normal practice or is there another attachment lens that will provide good focus at infinity? __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Molten Core? Solid Core? Rocky Core? Blue Cheese!?
OK, A friend and I were watching a show on Discovery or NatGeo a couple months back. The program I think was about asteroids, and impacts, perhaps even How the Earth Was Made or another program. Don't really remember The point is during the show they said very matter-of-factly on three separate occasions that the Earth's core was made of three different materials. One scientist (or narrator I don't remember) said Earth had a rocky core. Which we laughed at of course because we all know that the Earth's core is Solid iron right? Then another scientist confirmed our knowledge and stated what we already knew. The Earth core is made of SOLID iron. Of course we said! Now that's right... Then not 10 minutes more into the show another person stated that the Earth had a molten iron core. To make matters even more confusing the show went on to say that the SOLID iron core was surrounded by molten iron with lighter rocky materials floating out beyond that OK... sounded good at the time, but My question is simple. Which is it? Molten? Solid Iron? or Solid iron surrounded by molten iron. And if it's the latter how is this possible? Wouldn't the solid iron core NOT be solid if it were sitting in the middle of a molten lake of iron? Does the core cool faster than the surrounding material, and if so how is this possible considering this the logic that says an object cools from the outside in. Now, I'd like to stop there but I just read an interesting article on National Geographic's website titled North Magnetic Pole Moving East Due to Core Flux here: http://news.nationalgeographic.com/news/2009/12/091224-north-pole-magnetic-russia-earth-core.html At the end of the article it flatly states: ...Wandering Pole - Geologists think Earth has a magnetic field because the core is made up of a solid iron center surrounded by rapidly spinning liquid metal. This creates a dynamo that drives our magnetic field. Scientists had long suspected that, since the molten core is constantly moving, changes in its magnetism might be affecting the surface location of magnetic north I don't know about you, but this confuses me just a little bit... Can anyone please clear this up for me? And perhaps the rest of the world? ;) Regards, Eric Wichman Meteorites USA __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Molten Core? Solid Core? Rocky Core? Blue Cheese!?
Solid Iron Inner Core. Liquid Iron Outer Core. Wiki is a good read. http://en.wikipedia.org/wiki/Structure_of_the_Earth -- Richard Kowalski http://fullmoonphotography.net IMCA #1081 --- On Tue, 12/29/09, Meteorites USA e...@meteoritesusa.com wrote: From: Meteorites USA e...@meteoritesusa.com Subject: [meteorite-list] Molten Core? Solid Core? Rocky Core? Blue Cheese!? To: meteorite-list@meteoritecentral.com Date: Tuesday, December 29, 2009, 9:02 PM OK, A friend and I were watching a show on Discovery or NatGeo a couple months back. The program I think was about asteroids, and impacts, perhaps even How the Earth Was Made or another program. Don't really remember The point is during the show they said very matter-of-factly on three separate occasions that the Earth's core was made of three different materials. One scientist (or narrator I don't remember) said Earth had a rocky core. Which we laughed at of course because we all know that the Earth's core is Solid iron right? Then another scientist confirmed our knowledge and stated what we already knew. The Earth core is made of SOLID iron. Of course we said! Now that's right... Then not 10 minutes more into the show another person stated that the Earth had a molten iron core. To make matters even more confusing the show went on to say that the SOLID iron core was surrounded by molten iron with lighter rocky materials floating out beyond that OK... sounded good at the time, but My question is simple. Which is it? Molten? Solid Iron? or Solid iron surrounded by molten iron. And if it's the latter how is this possible? Wouldn't the solid iron core NOT be solid if it were sitting in the middle of a molten lake of iron? Does the core cool faster than the surrounding material, and if so how is this possible considering this the logic that says an object cools from the outside in. Now, I'd like to stop there but I just read an interesting article on National Geographic's website titled North Magnetic Pole Moving East Due to Core Flux here: http://news.nationalgeographic.com/news/2009/12/091224-north-pole-magnetic-russia-earth-core.html At the end of the article it flatly states: ...Wandering Pole - Geologists think Earth has a magnetic field because the core is made up of a solid iron center surrounded by rapidly spinning liquid metal. This creates a dynamo that drives our magnetic field. Scientists had long suspected that, since the molten core is constantly moving, changes in its magnetism might be affecting the surface location of magnetic north I don't know about you, but this confuses me just a little bit... Can anyone please clear this up for me? And perhaps the rest of the world? ;) Regards, Eric Wichman Meteorites USA __ 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] Molten Core? Solid Core? Rocky Core? BlueCheese!?
Doesn't the magnetic field necessitate Flowing or Turbulence within the core, a result of the Earth's differential rotation? -- From: Richard Kowalski damoc...@yahoo.com Sent: Tuesday, December 29, 2009 11:09 PM To: meteorite-list@meteoritecentral.com; Meteorites USA e...@meteoritesusa.com Subject: Re: [meteorite-list] Molten Core? Solid Core? Rocky Core? BlueCheese!? Solid Iron Inner Core. Liquid Iron Outer Core. Wiki is a good read. http://en.wikipedia.org/wiki/Structure_of_the_Earth -- Richard Kowalski http://fullmoonphotography.net IMCA #1081 --- On Tue, 12/29/09, Meteorites USA e...@meteoritesusa.com wrote: From: Meteorites USA e...@meteoritesusa.com Subject: [meteorite-list] Molten Core? Solid Core? Rocky Core? Blue Cheese!? To: meteorite-list@meteoritecentral.com Date: Tuesday, December 29, 2009, 9:02 PM OK, A friend and I were watching a show on Discovery or NatGeo a couple months back. The program I think was about asteroids, and impacts, perhaps even How the Earth Was Made or another program. Don't really remember The point is during the show they said very matter-of-factly on three separate occasions that the Earth's core was made of three different materials. One scientist (or narrator I don't remember) said Earth had a rocky core. Which we laughed at of course because we all know that the Earth's core is Solid iron right? Then another scientist confirmed our knowledge and stated what we already knew. The Earth core is made of SOLID iron. Of course we said! Now that's right... Then not 10 minutes more into the show another person stated that the Earth had a molten iron core. To make matters even more confusing the show went on to say that the SOLID iron core was surrounded by molten iron with lighter rocky materials floating out beyond that OK... sounded good at the time, but My question is simple. Which is it? Molten? Solid Iron? or Solid iron surrounded by molten iron. And if it's the latter how is this possible? Wouldn't the solid iron core NOT be solid if it were sitting in the middle of a molten lake of iron? Does the core cool faster than the surrounding material, and if so how is this possible considering this the logic that says an object cools from the outside in. Now, I'd like to stop there but I just read an interesting article on National Geographic's website titled North Magnetic Pole Moving East Due to Core Flux here: http://news.nationalgeographic.com/news/2009/12/091224-north-pole-magnetic-russia-earth-core.html At the end of the article it flatly states: ...Wandering Pole - Geologists think Earth has a magnetic field because the core is made up of a solid iron center surrounded by rapidly spinning liquid metal. This creates a dynamo that drives our magnetic field. Scientists had long suspected that, since the molten core is constantly moving, changes in its magnetism might be affecting the surface location of magnetic north I don't know about you, but this confuses me just a little bit... Can anyone please clear this up for me? And perhaps the rest of the world? ;) Regards, Eric Wichman Meteorites USA __ 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
Re: [meteorite-list] Meteorite Deaths? Interesting old article-read
Susan K. Webb wrote: Most of the bulk of my post involved the old Chinese recorded incidents. Lewis took those from the Yau, Weissman and Yeomans' paper: Yau, K., P. Weissman, and D. Yeomans, 1994, Meteorite Falls in China and Some Related Human Casualty Events. Meteoritics. vol. 29, pp. 864-871. http://adsabs.harvard.edu/abs/1994Metic..29..864Y PDF file at: http://tiny.cc/ChineseFalls or http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1994Metic..29..864Yamp;data_type=PDF_HIGHamp;whole_paper=YESamp;type=PRINTERamp;filetype=.pdf Thank you for the citation and reference to the Chinese falls. It is a rather interesting and very useful paper. Webb also wrote; Paul's response suggests that field work could be profitable if the site could be located. That took me by surprise; I assumed too much time had passed. It's an exciting thought. I agree with you that this is a very interesting thought. It the case of the reported falls that involve just a few stones, it highly unlikely that much of anything could be found. However, in case of certain reported falls, in which it appears that thousands of pieces might have fell, I think even after a few hundred years, that there is a fair chance that there might still be meteorites that can be found. I suspect, if a person took into account what geoarchaeologists call site formation processes and used what is known about the geomorphology and geomorphologic history of the area, a good geomorphologist / geologist / geoarchaeology could make specific predictions as to where any meteorites from a fall eventually came to rest and where to best look for them. It is matter of using the enormous amount of knowledge already gathered about geomorphology, surficial landscape processes, and site formation processes to predict the best places to look for meteorites deposited from a possible fall. Of course after several hundred years, any meteorites found would likely be too weathered to be of any interest to collectors. However, I suspect that scientifically useful information can still be collected despite how badly weathered the specimens might be. Of course, any search for such reported falls would not be easy and there would be no guarantee of success. Looking at Yau et al. (1994), the reported 1490 fall, in my opinion, might be a promising candidate for a search for meteorites because of both the reported number of objects and the reported size, 1.0 to 1.5 kg, of individual pieces. Unfortunately, at this time, I cannot determine what the modern name for Ch'ing-yang, China and its exact location is at this time given the different and changing ways that Chinese names have been and are transliterated into English. Best Wishes, Paul H. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Molten Core? Solid Core? Rocky Core?BlueCheese!?
I didn't see the show you're describing but perhaps they were playing Devil's advocate [excuse the biblical reference] to highlight a salient point. -- From: Jerry Flaherty g...@comcast.net Sent: Tuesday, December 29, 2009 11:27 PM To: Richard Kowalski damoc...@yahoo.com; meteorite-list@meteoritecentral.com; Meteorites USA e...@meteoritesusa.com Subject: Re: [meteorite-list] Molten Core? Solid Core? Rocky Core?BlueCheese!? Doesn't the magnetic field necessitate Flowing or Turbulence within the core, a result of the Earth's differential rotation? -- From: Richard Kowalski damoc...@yahoo.com Sent: Tuesday, December 29, 2009 11:09 PM To: meteorite-list@meteoritecentral.com; Meteorites USA e...@meteoritesusa.com Subject: Re: [meteorite-list] Molten Core? Solid Core? Rocky Core? BlueCheese!? Solid Iron Inner Core. Liquid Iron Outer Core. Wiki is a good read. http://en.wikipedia.org/wiki/Structure_of_the_Earth -- Richard Kowalski http://fullmoonphotography.net IMCA #1081 --- On Tue, 12/29/09, Meteorites USA e...@meteoritesusa.com wrote: From: Meteorites USA e...@meteoritesusa.com Subject: [meteorite-list] Molten Core? Solid Core? Rocky Core? Blue Cheese!? To: meteorite-list@meteoritecentral.com Date: Tuesday, December 29, 2009, 9:02 PM OK, A friend and I were watching a show on Discovery or NatGeo a couple months back. The program I think was about asteroids, and impacts, perhaps even How the Earth Was Made or another program. Don't really remember The point is during the show they said very matter-of-factly on three separate occasions that the Earth's core was made of three different materials. One scientist (or narrator I don't remember) said Earth had a rocky core. Which we laughed at of course because we all know that the Earth's core is Solid iron right? Then another scientist confirmed our knowledge and stated what we already knew. The Earth core is made of SOLID iron. Of course we said! Now that's right... Then not 10 minutes more into the show another person stated that the Earth had a molten iron core. To make matters even more confusing the show went on to say that the SOLID iron core was surrounded by molten iron with lighter rocky materials floating out beyond that OK... sounded good at the time, but My question is simple. Which is it? Molten? Solid Iron? or Solid iron surrounded by molten iron. And if it's the latter how is this possible? Wouldn't the solid iron core NOT be solid if it were sitting in the middle of a molten lake of iron? Does the core cool faster than the surrounding material, and if so how is this possible considering this the logic that says an object cools from the outside in. Now, I'd like to stop there but I just read an interesting article on National Geographic's website titled North Magnetic Pole Moving East Due to Core Flux here: http://news.nationalgeographic.com/news/2009/12/091224-north-pole-magnetic-russia-earth-core.html At the end of the article it flatly states: ...Wandering Pole - Geologists think Earth has a magnetic field because the core is made up of a solid iron center surrounded by rapidly spinning liquid metal. This creates a dynamo that drives our magnetic field. Scientists had long suspected that, since the molten core is constantly moving, changes in its magnetism might be affecting the surface location of magnetic north I don't know about you, but this confuses me just a little bit... Can anyone please clear this up for me? And perhaps the rest of the world? ;) Regards, Eric Wichman Meteorites USA __ 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 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] need Steve A's GIANT MAGNET
geoarchaeologists call site formation processes If he can find Brenham send him to China!!! __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Molten Core? Solid Core? Rocky Core? Blue Cheese!?
Don't equate freezing with cold, at least not in everyday terms. At the Inner Core, the Iron is freezing; going from a liquid to a solid. The same amount of energy to melt something is the exact same amount of energy that something gives off as it freezes. The change of state is key here. It isn't obvious, but on a human scale, farmers in warmer climes will spray water on their crops on nights when there will be a hard freeze. The reason for this is two-fold. One, the ice insulates the fruit, but two, the act of the water freezing gives off heat. -- Richard Kowalski http://fullmoonphotography.net IMCA #1081 --- On Tue, 12/29/09, Meteorites USA e...@meteoritesusa.com wrote: From: Meteorites USA e...@meteoritesusa.com Subject: Re: [meteorite-list] Molten Core? Solid Core? Rocky Core? Blue Cheese!? To: Richard Kowalski damoc...@yahoo.com Cc: meteorite-list@meteoritecentral.com Date: Tuesday, December 29, 2009, 10:48 PM Thanks and that makes perfect sense. Thank goodness for the Wiki... So why is the core supposedly freezing cold ...The current scientific explanation for the Earth's temperature gradient is a combination of the heat left over from the planet's initial formation, the decay of radioactive elements, and the freezing of the inner core... And how do we know this? Regards, Eric On 12/29/2009 8:09 PM, Richard Kowalski wrote: Solid Iron Inner Core. Liquid Iron Outer Core. Wiki is a good read. http://en.wikipedia.org/wiki/Structure_of_the_Earth -- Richard Kowalski http://fullmoonphotography.net IMCA #1081 --- On Tue, 12/29/09, Meteorites USA e...@meteoritesusa.com wrote: From: Meteorites USA e...@meteoritesusa.com Subject: [meteorite-list] Molten Core? Solid Core? Rocky Core? Blue Cheese!? To: meteorite-list@meteoritecentral.com Date: Tuesday, December 29, 2009, 9:02 PM OK, A friend and I were watching a show on Discovery or NatGeo a couple months back. The program I think was about asteroids, and impacts, perhaps even How the Earth Was Made or another program. Don't really remember The point is during the show they said very matter-of-factly on three separate occasions that the Earth's core was made of three different materials. One scientist (or narrator I don't remember) said Earth had a rocky core. Which we laughed at of course because we all know that the Earth's core is Solid iron right? Then another scientist confirmed our knowledge and stated what we already knew. The Earth core is made of SOLID iron. Of course we said! Now that's right... Then not 10 minutes more into the show another person stated that the Earth had a molten iron core. To make matters even more confusing the show went on to say that the SOLID iron core was surrounded by molten iron with lighter rocky materials floating out beyond that OK... sounded good at the time, but My question is simple. Which is it? Molten? Solid Iron? or Solid iron surrounded by molten iron. And if it's the latter how is this possible? Wouldn't the solid iron core NOT be solid if it were sitting in the middle of a molten lake of iron? Does the core cool faster than the surrounding material, and if so how is this possible considering this the logic that says an object cools from the outside in. Now, I'd like to stop there but I just read an interesting article on National Geographic's website titled North Magnetic Pole Moving East Due to Core Flux here: http://news.nationalgeographic.com/news/2009/12/091224-north-pole-magnetic-russia-earth-core.html At the end of the article it flatly states: ...Wandering Pole - Geologists think Earth has a magnetic field because the core is made up of a solid iron center surrounded by rapidly spinning liquid metal. This creates a dynamo that drives our magnetic field. Scientists had long suspected that, since the molten core is constantly moving, changes in its magnetism might be affecting the surface location of magnetic north I don't know about you, but this confuses me just a little bit... Can anyone please clear this up for me? And perhaps the rest of the world? ;) Regards, Eric Wichman Meteorites USA __ 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] Molten Core? Solid Core? Rocky Core?BlueCheese!?
Here's your flowing turbulence, Jerry! http://www.sciencedaily.com/releases/2009/12/091223222743.htm Sterling K. Webb --- - Original Message - From: Jerry Flaherty g...@comcast.net To: Richard Kowalski damoc...@yahoo.com; meteorite-list@meteoritecentral.com; Meteorites USA e...@meteoritesusa.com Sent: Tuesday, December 29, 2009 10:27 PM Subject: Re: [meteorite-list] Molten Core? Solid Core? Rocky Core?BlueCheese!? Doesn't the magnetic field necessitate Flowing or Turbulence within the core, a result of the Earth's differential rotation? -- From: Richard Kowalski damoc...@yahoo.com Sent: Tuesday, December 29, 2009 11:09 PM To: meteorite-list@meteoritecentral.com; Meteorites USA e...@meteoritesusa.com Subject: Re: [meteorite-list] Molten Core? Solid Core? Rocky Core? BlueCheese!? Solid Iron Inner Core. Liquid Iron Outer Core. Wiki is a good read. http://en.wikipedia.org/wiki/Structure_of_the_Earth -- Richard Kowalski http://fullmoonphotography.net IMCA #1081 --- On Tue, 12/29/09, Meteorites USA e...@meteoritesusa.com wrote: From: Meteorites USA e...@meteoritesusa.com Subject: [meteorite-list] Molten Core? Solid Core? Rocky Core? Blue Cheese!? To: meteorite-list@meteoritecentral.com Date: Tuesday, December 29, 2009, 9:02 PM OK, A friend and I were watching a show on Discovery or NatGeo a couple months back. The program I think was about asteroids, and impacts, perhaps even How the Earth Was Made or another program. Don't really remember The point is during the show they said very matter-of-factly on three separate occasions that the Earth's core was made of three different materials. One scientist (or narrator I don't remember) said Earth had a rocky core. Which we laughed at of course because we all know that the Earth's core is Solid iron right? Then another scientist confirmed our knowledge and stated what we already knew. The Earth core is made of SOLID iron. Of course we said! Now that's right... Then not 10 minutes more into the show another person stated that the Earth had a molten iron core. To make matters even more confusing the show went on to say that the SOLID iron core was surrounded by molten iron with lighter rocky materials floating out beyond that OK... sounded good at the time, but My question is simple. Which is it? Molten? Solid Iron? or Solid iron surrounded by molten iron. And if it's the latter how is this possible? Wouldn't the solid iron core NOT be solid if it were sitting in the middle of a molten lake of iron? Does the core cool faster than the surrounding material, and if so how is this possible considering this the logic that says an object cools from the outside in. Now, I'd like to stop there but I just read an interesting article on National Geographic's website titled North Magnetic Pole Moving East Due to Core Flux here: http://news.nationalgeographic.com/news/2009/12/091224-north-pole-magnetic-russia-earth-core.html At the end of the article it flatly states: ...Wandering Pole - Geologists think Earth has a magnetic field because the core is made up of a solid iron center surrounded by rapidly spinning liquid metal. This creates a dynamo that drives our magnetic field. Scientists had long suspected that, since the molten core is constantly moving, changes in its magnetism might be affecting the surface location of magnetic north I don't know about you, but this confuses me just a little bit... Can anyone please clear this up for me? And perhaps the rest of the world? ;) Regards, Eric Wichman Meteorites USA __ 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 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
