Hi,
The speed at which an object reaches the ground
depends on the distance it has fallen, balanced
by the retardation of air resistance. A smooth, pointed
projectile falling from 42,000 feet will achieve a terminal
velocity of about 900 mph, while an irregular floppy
object like a man without a
In a message dated 4/9/2009 2:09:03 A.M. Central Daylight Time,
sterling_k_w...@sbcglobal.net writes:
If someone tosses a mouse
down the 100-foot shaft, the mouse lands on his feet,
shakes his head dizzily, and says, What the hell was
that all about? although to our ears it sounds like
Eeeek!
Ok,
PLEASE NOTE: I'm not recommending this to anyone, it just an
experiment I tried with surprising results. Mainly the fact that it
appeared to have exposed areas of fusion crust, and stabilized the
specimen.
What I did:#1 remove largest flakes with very light wire
brushing,
Dear Listees,
First of all I wish you all a bit in advance a very happy Easter weekend!
I hope that you will still have time to browse on ebay as our auctions are
ending on Saturday as usual and can be seen at:
http://search.ebay.com/_W0QQfgtpZ1QQfrppZ50QQsassZmeteoriteshow
They include:
Thanks Bill, for the information, always useful to have other peoples take on
how to treat rusting irons.
A note to those using or considering using chemical gun blues: be very very
careful, it is really soo toxic as usually it contains Selenium dioxide, it
will make you very ill. (Also even
Hello Aubrey and list,
There is a good basic explanation of terminal velocity here:
http://en.wikipedia.org/w/index.php?title=Terminal_velocity
A Java applet for do-it-yourself calculations can be downloaded here:
http://www.grc.nasa.gov/WWW/K-12/airplane/termv.html
A table with calculated
Thank you Mark,
Good point! Disclaimer: Don't try this at
home! If you do try it please be CAREFUL! Respirator, safety glasses,
good ventilation, apron, gloves, etc. etc.
Bill
__
Thanks for all the replies!
Whilst I wasn't happy about being hit by hail stones, I'm pleased I
wasn't hit by a meteorite! Mind you, that would be a real hammer and
I'm sure the money would pay the medical expenses for a new hand!
Regards, Aubrey
__
I can assure you and everyone that this is a real carbonado diamond. I have
dealt this this ebay diamond distributor before and his items are exactly what
he claims them to be.
They are diamonds.
I bought a nice one from this dealer some time ago. It is a specimen at 21
carets and he had
A carbonado with fusion crust? My skepticism meter is pegged. If true it
would be of extraordinary scientific interest, but the problem is that
diamond doesn¹t melt. It evaporates. Silicates are content to form what is
basically a liquid silicon oxide, but carbon oxides (CO, CO2) are gases,
Those Carbonado's are cool. Any chance they were formed in space and some
could show signs of entry that might resemble at least the texture of
crust. If the shape and texture was there I can see why it would look like
fusion crust as they are already black and glassy looking.
There is a
...According to researchers at the McMaster University in Hamilton,
Ontario, Canada, led by astrophysicist Ralph Pudritz, this idea was
prompted by the fact that the way in which amino-acids were found to
bond in meteorite samples that were collected from Earth seemed very
similar to the way
Hi to all, Hope everyone is having a good day!
I am offering a few slices of the new LL4 meteorite for sale that I have had
tested and will be submitting to recieve a NWA #.
Its a great looking meteorite with a total weight of only 497g prior to
cutting, and I will only be selling about 100
Dear Listoids,
If you want to see (or buy) our killer Claxton slice.look here:
http://cgi.ebay.com/Claxton-Mailbox-Hammer-Meteorite-3-8-grams_W0QQitemZ170319880759QQihZ007QQcategoryZ3239QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
It has the best crust ever seen with lots of mailbox silver paint
MARS RECONNAISSANCE ORBITER HIRISE IMAGES
April 8, 2009
Rough-Textured Circular Feature
http://hirise.lpl.arizona.edu/ESP_012425_1455
Russell Crater Dunes: Volatile Activity Investigation
http://hirise.lpl.arizona.edu/ESP_011580_1255
Seasonal Haloes and Fractal Patterns
http://science.nasa.gov/headlines/y2009/09apr_theia.htm
STEREO Hunts for Remains of an Ancient Planet near Earth
NASA Science News
04.09.2009
April 9, 2009: NASA's twin STEREO probes are entering a mysterious
region of space to look for remains of an ancient planet which once
orbited the Sun
http://www.newscientist.com/article/dn16933-first-dna-analysis-may-be-done-on-another-planet.html
DNA analysis may be done on Mars for first time
by Ewen Callaway
New Scientist
09 April 2009
In August 1996, molecular biologist Gary Ruvkun was about to reveal
one of the biggest discoveries of
Fred,
I can only say that the lines and surface looked like fusion crust from the
photos that I received from ebay's seller, aaaroughy. I communicated with
Dr. Haggarty regarding this and he even mentioned to me that there are
exceedingly rare carbonado examples that have traces of what
Ooops,
Marc (MDF), not Fred my mistake-- Left side of my damaged brain did it.
Steve
-- Original Message --
From: Steve Schoner scho...@mybluelight.com
To: meteorite-list@meteoritecentral.com
Subject: Re: Neither Carbonado Nor Meteorite
Date: Thu, 9 Apr 2009 23:52:59 GMT
http://www.rocksfromspace.org/April_10_2009.html
__
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