Quote from: pippin on 03/22/2013 12:11 amQuote from: Robotbeat on 03/21/2013 04:22 pm<snip>
Quote from: Robotbeat on 03/21/2013 04:22 pm<snip>
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Clearly, if you have two objects hit or nearly hit within a short timeframe (a day or so) and appear to be completely independent events, then it is much more likely your calculation of the probability was wrong than that you just experienced an event not likely to happen within a trillion times the age of the Universe.
For those in the US, PBS' NOVA program on 27 Mar will cover the search for fragments.
Quote from: pippin on 03/22/2013 12:11 amQuote from: Robotbeat on 03/21/2013 04:22 pmClearly, if you have two objects hit or nearly hit within a short timeframe (a day or so) and appear to be completely independent events, then it is much more likely your calculation of the probability was wrong than that you just experienced an event not likely to happen within a trillion times the age of the Universe.No, sorry, this is wrong. This would be a single event and would have In these circumstances of a close pass and a collision, they don't effect current models because the models already say that close-passes are relatively common and large hits can happen between once a decade and once a century.I have to shake my head in disgust at the abstract impersonal debatedeveloping. Do all of you realize that that meteoroid/asteroid HAD a major orbital axisthat once stretched well over 200 million klicks before it slammed into our atmosphere? And it released most of its energy 30 klicks above a major Russian city?Compare 30 klicks to over 200 million klicks.In other words? If it had exploded with over 400 kilotons of energy released, 10 kilometers closer to earth, the shockwave over-pressure would have KILLED THOUSANDS of human beings like you and me.
Quote from: Robotbeat on 03/21/2013 04:22 pmClearly, if you have two objects hit or nearly hit within a short timeframe (a day or so) and appear to be completely independent events, then it is much more likely your calculation of the probability was wrong than that you just experienced an event not likely to happen within a trillion times the age of the Universe.No, sorry, this is wrong. This would be a single event and would have In these circumstances of a close pass and a collision, they don't effect current models because the models already say that close-passes are relatively common and large hits can happen between once a decade and once a century.
Chelyabinsk Meteor 17 to 20 metres across
Quote from: Targeteer on 03/21/2013 10:59 pmFor those in the US, PBS' NOVA program on 27 Mar will cover the search for fragments.Just watched the program on the DVR. Interesting and detailed. The object was mostly rock (90%) and orbitology showed that the earth actually ran down the object from behind. The largest fragment shown was slightly smaller that a baseball.
Quote from: smoliarm on 02/26/2013 11:59 amQuote from: go4mars on 02/26/2013 02:25 amQuote from: smoliarm on 02/24/2013 07:53 amthere is no case in the entire recorded history of meteorite tsunami. Does Burckle crater not count?Of course, it does not I am talking about historical records and about eventsExodus 14:19-29 "pillar of cloud", water recedes, rushes back ... hey who knows?
Quote from: go4mars on 02/26/2013 02:25 amQuote from: smoliarm on 02/24/2013 07:53 amthere is no case in the entire recorded history of meteorite tsunami. Does Burckle crater not count?Of course, it does not I am talking about historical records and about events
Quote from: smoliarm on 02/24/2013 07:53 amthere is no case in the entire recorded history of meteorite tsunami. Does Burckle crater not count?
there is no case in the entire recorded history of meteorite tsunami.
sunburns/burnt peeling skin on local.
It isn't called a fusion crust because of nuclear fusion!!
"We think the appearance (formation) of this platinum group mineral in the fusion crust may be linked to compositional changes in metal-sulfide liquid during remelting and oxidation processes as the meteorite came into contact with atmospheric oxygen."
Where in the article do you seem them mentioning nuclear fusion? I just re-read it three times and don't see it.
Another surprise finding from the Chelyabinsk meteorites came from their fusion crusts. There, researchers found small amounts of platinum-group elements, in the form of an alloy of osmium, iridium and platinum, that are rare in this layer of meteorites. The scientists think these may have formed when the falling rocks slam into Earth's atmosphere.