06/29/2004 10:05:27 PM Mexico Daylight Time Professor Detlef Lohse escribe:
Thanks for your nice words. You carefully read the paper.
We made the sand flushy to destroy the force chains.
In this way hardly any energy is stored in the ground,
and the energy of the object is overwhelming. The
Agree with Craig.. The simpler tests
using a drop of milk in a puddle produced much better information. You could
see the concentric rings being created (complex ring structure crater) as the
central mass sank, upwelled, and sank again. By using the fluid dynamics math
on the liquid, and
http://www.abc.net.au/news/newsitems/200406/s1143829.htm]
Meteorite reported in southern WA
Australian Broadcasting Corporation
June 30, 2004
The Perth Observatory says it has had reports a meteor has crashed
near Walpole in Western Australia's south.
Witnesses say they saw a large, fiery
MARS GLOBAL SURVEYOR IMAGES
June 24-30, 2004
The following new images taken by the Mars Orbiter Camera (MOC) on
the Mars Global Surveyor spacecraft are now available:
o South Polar Erosion (Released 24 June 2004)
http://www.msss.com/mars_images/moc/2004/06/24/index.html
o Pits Near Rhabon
Zig-zagging = tumbling space junk?
MDF
http://www.abc.net.au/news/newsitems/200406/s1143829.htm]
Meteorite reported in southern WA
Australian Broadcasting Corporation
June 30, 2004
The Perth Observatory says it has had reports a meteor has crashed
near Walpole in Western Australia's
Portales Valley was spinning when it fell, so I think that if the body has a
strange angled shape, that it can tumble, or spin while falling, I doubt
that it was zig zagging as in changing directions like they suggest.
Mike Farmer
- Original Message -
From: Marc D. Fries [EMAIL PROTECTED]
The video that I referred to was of high speed projectile impact testing performed by
NASA, so I think they could be considered somewhat rigorous.
I'm not saying the tests referred to in Ron's original posting weren't important, but
maybe the article just didn't spell out the reasons that it
In a message dated 6/30/2004 11:57:38 AM Mountain Daylight Time, [EMAIL PROTECTED] writes:
Portales Valley was spinning when it fell, so I think that if the body has astrange angled shape, that it can tumble, or spin while falling, I doubtthat it was zig zagging as in changing directions like
Juris, indeed, most meteors we all know are moving so fast and burn up.
These large ones that drop meteorites slow down enough that the air pressures on
the body can move it around. I think it would be extremely rare anyway, but with
an odd shaped meteorite, and a hard one like an iron, when
I guess it comes down to what the eyewitness meant by zig zagging. If
we're talking about some corkscrewing motion through the sky then I can
believe it was a tumbling meteorite, but if it rapidly changed direction
then my vote is for a large, tumbling, very-low-density-by-comparison
chunk of
Hello Juris, Mike, and List,
with an odd shaped meteorite, and a hard one like an iron,
when it slows down enough, I would think that the air can
easily force it to rotate and spin.
Noblesville (H4) - oriented with well-developed flight markings,
483.7 grams. B.Kinzie saw the meteorite
... they saw a large, fiery object zigzagging
through the sky at about 5:30pm yesterday.
Zig-zagging = tumbling space junk?
comes down to what the eyewitness meant by zig zagging
if it rapidly changed direction ... a large, tumbling, very-low-
density-by-comparison chunk of expended
Dear list,
Sounds like we are talking about two different phenoma here: rotational spinning and relative translational displacement, or zig zagging. There is a third one to consider, too, spiraling. Spiraling traces zig zagging in that brief moment of surprise, if like most viewers, they see it
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Mike Farmer wondered:
I think it would be extremely rare anyway, but with an odd shaped meteorite, and a
hard one like an iron, when it slows down enough, I would think that the air can
easily force it to rotate and spin.
Hi All,
I remember reading about a meteorite that fell through the
Zig-zagging = tumbling space junk?
MDF
Not likely. There is no suitable decay candidate for that date/time/location
combination. The last decay warning at the NASA OIG server is for the decay
of 1992-088E on June 27, which was a spectaculare one observed from the
eastern USA and Canada. No
Martin writes:
I remember reading about a meteorite that fell through the trunk of a car
in Japan a number of years ago. The meteorite was spinning and as it
punched through the metal of the trunk lid, it was scored or somehow
marked with a screw-thread pattern that was later used to
I wrote:
The last decay warning at the NASA OIG server is for the decay
of 1992-088E on June 27, which was a spectaculare one observed from the
eastern USA and Canada. No decayers after that date. The next expected
decay
is in a couple of hours from now, the decay of a piece of Ariane 3
Dear All,
We have made new pages of our web site in order
to put some pictures of Ensisheim and Ste Marie aux Mines Shows, that you can
see at:
- Ensisheim (English): http://meteoriteshow.free.fr/meteoriteshow%20angl/pages%20navigation/Ensisheim-navbanner-contact.html
- Ste Marie (English):
While waiting in the local cehckup line, I noticed
that
this week's Weekly World News (WWW) has one of the
latest versions of the Falling Meteorite kills (fill
in the blank) story. The headline reads, Meteorite
Flattens Pope. In the tradition of the Weekly World
News, it is quite a shaggy dog
G'day List,
The way I interpreted this is that it was probably
a meteor fragmenting before 'burn-out'. Read this line:
A shooting star usually just goes straight
across or straight down - this one had these gradual zigzags just coming down,"
she said.
The resultant fragments could be seen
(Stuart Perry to Harvey Nininger letter, Perry's File copy) January 3, 1954 Dear Harvey, Glad to get your letter, and a happy New Year to you and Mrs. Nininger. Your offer of the two meteorites is tremendously interesting, though the money involved is a bit appalling. But I must admit the
(Stuart Perry to Harvey Nininger letter, Perry's File copy) January 11, 1954 Dear Harvey, I have decided that I don't want to buy the two meteorites. I am sorry, but can't see any other way. They represent too much money to buy for my own collection, and if I gave them to the U.S. Museum I could
(American Meteorite Museum Letterhead) DEVOTED TO RESEARCH AND POPULAR METEORITICS (drawling of Sedona museum) BOX 146, SEDONA, ARIZONA H.H. Nininger, M.S., D.Sc. DIRECTOR Addie D Nininger SECRETARY - TREASURER C.H. Brandmeyer SUPT. OF CONSTRUCTION AND DESIGN January 25, 1954 Mr. S. H. Perry
http://www.geocities.com/spacerocksinc/July_1.htmlIMCA#5184
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Hello list, I am running a sale on the 0.1g-600g digital scale I sell for the next 24 hrs. I have sold over 100 of these almost completely to the meteorite community. In fact, it is fair to say a good portion of the meteorite sellers on eBay is using a scale I sold them. I am still using the one
Woohoo!
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Hi, All,
The people who publish WWW are like all the other checkout tabloid
publishers, cynical Brits who rightly believe that there is no limit to
how rich you can become by underestimating the intelligence of the
average American. The really strange people are the ones who READ the
Weekly
Gretings List,
I've just listed two very nice endpieces of Park Forest on ebay.
Starting price is just $7.00 per gram. See:
http://members.ebay.com/aboutme/anorthosite
thanx,
Steve
=
Steve Witt
IMCA #9020
http://www.meteoritecollectors.org
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