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Old 10-18-2003, 05:33 AM   #1
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Default Kinda neat, in nerdy sort of way

A "Periodic Table". All the elements encased in an actual wooden table. Some people have too much time...

http://www.theodoregray.com/PeriodicTable/index.html
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Old 10-18-2003, 05:38 AM   #2
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very cool.. but yea im a nerd like that...
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Old 10-18-2003, 05:41 AM   #3
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25mm APDS-T projectiles for 25mm Oerlikon KBB gun.
To quote from the website of the source (suppliers to the cannon-shooting hobby):
High velocity discarding sabot projectiles for the 25mm Oerlikon KBB gun. They are black plastic with a black cap. Upon firing, the sabot breaks off into 3 segments, and the low drag core carries on at high velocity. Core is tungsten carbide, with a zirconium tip. Very impressive pyrotechnic display upon impact! White hot displaced metal arcs out in an umbrella pattern.
In subsequent communications with the source, it appears that there are several variations that are not always easy to tell apart (it'* hard to cut the plastic way to see what'* inside, and of course that ruins the round). The one I got is tungsten metal (not tungsten carbide), and the tip is zinc-carbon alloy, basically a windshield that makes the shape more aerodynamic while permitting the tungsten core to have the optimal penetrating shape. (Analysis by x-ray fluorescence spectroscopy at the Center for Microanalysis of Materials, University of Illinois, partially supported by the U.*. Department of Energy under grant DEFG02-91-ER45439).
Source: River Valley Ordnance
Contributor: Theodore Gray
Acquired: 6 March, 2003
Price: $15
Size: 3"
Purity: >90%
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Old 10-18-2003, 05:45 AM   #4
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Looks a lot like the Depleted Uranium Sabot fired by the Abrams.
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Old 10-18-2003, 05:58 AM   #5
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Quote:
Originally Posted by MOS95B
Looks a lot like the Depleted Uranium Sabot fired by the Abrams.
thats on there too, under uranium
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Old 10-18-2003, 06:02 AM   #6
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Quote:
There'* a lot of controversy about the use of depleted uranium munitions, because people are afraid of the environmental effects on the countries that have been shot up with them. If they stayed intact there really wouldn't be much to worry about. But they don't stay intact, they vaporize on impact, and this turns out to have a huge impact on their potential for harm.

The radiation from uranium is largely of a type that does not penetrate skin much past the outer layer of dead cells, and hence is not particularly harmful if it'* outside of you. But if you inhale particles of such an alpha emitter, the radiation gets direct access to sensitive cells in the lungs and can do a great deal of damage.
Okay, so who do they think is gonna be around to inhale the particles at the receiving end of one of those rounds? Ghosts?
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Old 10-18-2003, 11:21 AM   #7
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Quote:
Originally Posted by MOS95B
Quote:
There'* a lot of controversy about the use of depleted uranium munitions, because people are afraid of the environmental effects on the countries that have been shot up with them. If they stayed intact there really wouldn't be much to worry about. But they don't stay intact, they vaporize on impact, and this turns out to have a huge impact on their potential for harm.

The radiation from uranium is largely of a type that does not penetrate skin much past the outer layer of dead cells, and hence is not particularly harmful if it'* outside of you. But if you inhale particles of such an alpha emitter, the radiation gets direct access to sensitive cells in the lungs and can do a great deal of damage.
Okay, so who do they think is gonna be around to inhale the particles at the receiving end of one of those rounds? Ghosts?
Yeah... I know that when it spalls inside someone it hits a LOT before it'* done moving. Tanks are only worse. But there is little radiation to begin with in those anyways.
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