Re: [meteorite-list] Temperature of meteorites

2010-11-24 Thread Frank Cressy
hat frost immediately formed on its surface when exposed to the air.” Cheers, Frank       From: "bernd.pa...@paulinet.de" To: Meteorite-list@meteoritecentral.com Sent: Tue, November 23, 2010 1:05:42 AM Subject: [meteorite-list] Temperature of meteor

Re: [meteorite-list] Temperature of meteorites

2010-11-24 Thread David Norton
: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Chris Peterson Sent: Tuesday, November 23, 2010 2:14 PM To: Meteorite List Subject: Re: [meteorite-list] Temperature of meteorites Sterling- I think you underestimate the effect of convective

Re: [meteorite-list] Temperature of meteorites - Correction of typo

2010-11-24 Thread almitt2
Greetings, Hands down, meteorites are cold when they land :-) Apollo Astronauts reported the smell of gun powder from the moon dust. Perhaps many bodies in the solar system have that smell. Falling through the atmosphere should remove the regolith though, except where it is cemented in from p

[meteorite-list] Temperature of meteorites - Correction of typo

2010-11-24 Thread bernd . pauli
and that the *hand had kept* that smell for two days. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-l

[meteorite-list] Temperature of meteorites

2010-11-24 Thread bernd . pauli
Original Message processed by Tobit InfoCenter Subject: Re: [meteorite-list] Temperature of meteorites (24-Nov-2010 11:17) From: hr...@aon.at To: bernd.pa...@paulinet.de Hello All, Again forwarding something ... this time from Herbert Raab: Zelimir Gabelica wrote: > Are there data report

Re: [meteorite-list] Temperature of meteorites

2010-11-23 Thread Chris Peterson
- From: "JoshuaTreeMuseum" To: Sent: Tuesday, November 23, 2010 2:22 PM Subject: [meteorite-list] Temperature of meteorites I was under the impression that it's a myth that direct friction from O and N molecules on the surface of a meteorite create the heat that causes ablation.

[meteorite-list] Temperature of meteorites

2010-11-23 Thread JoshuaTreeMuseum
I was under the impression that it's a myth that direct friction from O and N molecules on the surface of a meteorite create the heat that causes ablation. I thought that ram pressure in front of the meteorite was the main factor in generating heat. The KE and PE would create a hot shock laye

Re: [meteorite-list] Temperature of meteorites

2010-11-23 Thread Chris Peterson
ot; To: "Meteorite List" Cc: "Chris Peterson" ; "Bernd Pauli" ; "Larry Lebofsky" ; Sent: Tuesday, November 23, 2010 1:18 PM Subject: Re: [meteorite-list] Temperature of meteorites Some points for the debate: The rapid flight through the atmosphere

Re: [meteorite-list] Temperature of meteorites

2010-11-23 Thread Sterling K. Webb
November 23, 2010 4:46 AM Subject: Re: [meteorite-list] Temperature of meteorites Thanks Bernd: This will help a lot! My guess is that "warm" means warmer than the air temperature, but probably not much warmer than body temperature since even 15 to 20 degrees Centigrade (125 to 135 d

Re: [meteorite-list] Temperature of meteorites (Bernd's List)

2010-11-23 Thread Mike Bandli
pl.arizona.edu] Sent: Tuesday, November 23, 2010 9:14 AM To: Mike Bandli Cc: bernd.pa...@paulinet.de; meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] Temperature of meteorites (Bernd's List) Hi Mike: I am still a fan of cold meteorites (yes I am biased), so is it poss

Re: [meteorite-list] Temperature of meteorites (Bernd's List)

2010-11-23 Thread GeoZay
>>Could the black fusion crust formed at the time of ablation absorb the sun's radiative heat during the dark flight fall? Or provide some form of insulating benefit?<< Maybe...but I'd think that the air it has to pass thru during this period would be quite cold and its passing thru would

Re: [meteorite-list] Temperature of meteorites (Bernd's List)

2010-11-23 Thread Chris Peterson
ject: Re: [meteorite-list] Temperature of meteorites (Bernd's List) Herr Professor and List, Could the black fusion crust formed at the time of ablation absorb the sun's radiative heat during the dark flight fall? Or provide some form of

Re: [meteorite-list] Temperature of meteorites (Bernd's List)

2010-11-23 Thread Count Deiro
23, 2010 9:13 AM >To: Mike Bandli >Cc: bernd.pa...@paulinet.de, meteorite-list@meteoritecentral.com >Subject: Re: [meteorite-list] Temperature of meteorites (Bernd's List) > >Hi Mike: > >I am still a fan of cold meteorites (yes I am biased), so is it possible >that a b

Re: [meteorite-list] Temperature of meteorites (Bernd's List)

2010-11-23 Thread Adam Hupe
1 > IMCA #5765 > --- > > > -Original Message- > From: meteorite-list-boun...@meteoritecentral.com > [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of > bernd.pa...@paulinet.de > Sent: Tuesday, November 23, 2010 1:06

Re: [meteorite-list] Temperature of meteorites

2010-11-23 Thread MEM
quot;almi...@localnet.com" > To: meteorite-list@meteoritecentral.com > Sent: Tue, November 23, 2010 7:00:11 AM > Subject: Re: [meteorite-list] Temperature of meteorites > > Greetings listees, > > ahhh the hot/cold debate rears it's head again. I appreciate Bernd's list of

[meteorite-list] Temperature of meteorites

2010-11-23 Thread Mark Grossman
Hi, Ursula Marvin has attributed many of the reports of hot stones with a sulphurous smell to a "fire and brimstone" expectation on the part of the observers, especially for the older historic falls. She notes that the reports of hot stones still exist - primarily due to what observers think

Re: [meteorite-list] Temperature of meteorites (Bernd's List)

2010-11-23 Thread lebofsky
> > > -Original Message- > From: meteorite-list-boun...@meteoritecentral.com > [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of > bernd.pa...@paulinet.de > Sent: Tuesday, November 23, 2010 1:06 AM > To: Meteorite-list@meteoritecentral.com &

Re: [meteorite-list] Temperature of meteorites (Bernd's List)

2010-11-23 Thread Mike Bandli
Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of bernd.pa...@paulinet.de Sent: Tuesday, November 23, 2010 1:06 AM To: Meteorite-list@meteoritecentral.com Subject: [meteorite-list] Temperature of meteorites

Re: [meteorite-list] Temperature of meteorites

2010-11-23 Thread Chris Peterson
essage - From: "Dark Matter" To: "Chris Peterson" Cc: Sent: Tuesday, November 23, 2010 8:21 AM Subject: Re: [meteorite-list] Temperature of meteorites Hi Chris, While I understand your argument, it is just hard to reconcile with reports such as this: Mr. Gaffney

Re: [meteorite-list] Temperature of meteorites

2010-11-23 Thread Chris Peterson
Chris * Chris L Peterson Cloudbait Observatory http://www.cloudbait.com - Original Message - From: To: Cc: Sent: Tuesday, November 23, 2010 3:46 AM Subject: Re: [meteorite-list] Temperature of meteorites Thanks Bernd: This will help a lot! My guess is that "warm" means

Re: [meteorite-list] Temperature of meteorites

2010-11-23 Thread almitt2
Greetings listees, ahhh the hot/cold debate rears it's head again. I appreciate Bernd's list of falls that seem to indicate warm more so than cold but there are many factors to consider when compiling data. In Bernd's list, how many of these warm specimens were observed by laymen?? Often there

Re: [meteorite-list] Temperature of meteorites

2010-11-23 Thread Zelimir . Gabelica
Thanks Bernd. From your data we have as score: "warm": 14 versus "hot": 8 I believe this can be completed by browsing through other archives or accounts of some recent witnessed falls ? Are there data reporting "cold, frozen or alike" meteorites ? Take care, Zelimir bernd.pa...@paulinet.

Re: [meteorite-list] Temperature of meteorites

2010-11-23 Thread lebofsky
Thanks Bernd: This will help a lot! My guess is that "warm" means warmer than the air temperature, but probably not much warmer than body temperature since even 15 to 20 degrees Centigrade (125 to 135 degrees F) is considered hot. Given that some have been said to be frosty, and one always hears

[meteorite-list] Temperature of meteorites

2010-11-23 Thread bernd . pauli
Good morning Listees, Listoids, Listers, Here's a copy of something I posted many years ago (maybe 2004). Cheers, Bernd --- Meteorites - warm or hot to the touch? 01) The Binningup meteorite was recovered within a few minutes of the fal

Re: [meteorite-list] Temperature of meteorites

2010-11-22 Thread Meteorites USA
Are there ANY photos of any meteorite, taken *immediately* after it fell? Within seconds, or even minutes? I know some people have reported meteorites as warm, (e.g. Peekskill). http://astro.wsu.edu/worthey/astro/html/im-meteor/strikes.html and http://www.amnh.org/exhibitions/permanent/meteori

Re: [meteorite-list] Temperature of meteorites

2010-11-22 Thread Chris Peterson
I don't think there is a general answer to that question. It depends heavily on the size of the body after ablation. The larger it is, the longer it will take to cool down as it falls for a few minutes through cold (around -40°C) air. So a large body will be closer to the temperature it was at i

Re: [meteorite-list] Temperature of meteorites

2010-11-22 Thread m42protosun
-Nachricht- Subject: [meteorite-list] Temperature of meteorites Date: Tue, 23 Nov 2010 00:34:24 +0100 From: lebof...@lpl.arizona.edu To: "Chris Peterson" Cc: meteorite-list@meteoritecentral.com Hi all: I am in the middle of a workshop on asteroids and meteorites. At the end of the firs

[meteorite-list] Temperature of meteorites

2010-11-22 Thread bernd . pauli
Hello Larry and List, "What is the best estimate we have for the ambient temperature of meteorites after they have passed through the atmosphere?" Dhurmsala was said (!) to have had frost on its surface when it was recovered. Cheers, Bernd __ Visit t

[meteorite-list] Temperature of meteorites

2010-11-22 Thread lebofsky
Hi all: I am in the middle of a workshop on asteroids and meteorites. At the end of the first day, the teachers get to write down questions that they would like answered. During the session, I had said that when they land, meteorites are cold, not burning hot. The question that was asked was "how