[Leica] [was] Another Altered Photo / now WAY OT

[abridge at gmail.com (Adam Bridge)]

Sigh - not BILLION years. Geesh. Come on guys at least TRY to get some
half-life information correct.

Here's a Wikipedia article on Deplete Uranium. You can search for more
inflammatory or more sanguine articles with Google or your search
engine of choice.

<http://en.wikipedia.org/wiki/Depleted_uranium>

As a beta emitter U-238's decay chain isn't too bad since, as long as
it's external to the body your skin will block the high-energy
electrons emitted. Taken internally, however, it's more problamatical
but not nearly as nasty as the alpha-emitters whose high-energy helium
nuclii can do serious damage. (The most common source of alpha
emission is radon gas which is a naturally occuring decay product
found from a variety of natural sources, not to mention the decay
chains of fission products. In areas with lots of granite, for
instance, having a radon detector in your home would make a lot of
sense.)

Adam

On 8/8/06, G Hopkinson <hoppyman@bigpond.net.au> wrote:
> Hang on Don.
> This projectile has no magic burning through properties. It's all about
> density vs cross section. Add that to high velocity and you have enormous
> kinetic energy in the penetrator. The projectile will shed mass after
> penetrating, plus the armour itself will add to the stream. It is also
> pyrophoric so you would expect catastrophic heat along with the shrapnel 
> and
> spalled armour. An extremely lethal shower of very hot sharp material.
> Regarding the radiation, it may be relatively benign to handle as you 
> noted,
> but the dust particles from a round impact are VERY bad juju should you
> inhale them. That would be the least of your problems if you were sitting
> within the target. Visiting it later would not be recommended either. It 
> may
> well be very toxic within the next few billion years or so.
> Regarding the chain gun, it is a different but allied design to the rotary
> barrel "gatling" designs. The principle benefits are simplicity and extreme
> reliability.
>
> Cheers
> Hoppy Gunny and M9 Guy
>
> -----Original Message-----
> From: lug-bounces+hoppyman=bigpond.net.au@leica-users.org
> [mailto:lug-bounces+hoppyman=bigpond.net.au@leica-users.org] On Behalf Of
> Don Dory
> Sent: Tuesday, 8 August 2006 12:59
> To: Leica Users Group
> Subject: Re: [Leica] [was] Another Altered Photo / now WAY OT
>
> Jerry,
> >From a military perspective, depleted uranium is almost irresistable as an
> anti-amour round.  The uranium literally burns through armour without the
> extreme kinetic energy generally required.  Thus a 30mm chain gun can 
> become
> a heavy tank killer.  The military will not stop using it as it works too
> well.  As I understand the spent rounds are primarily a Beta emitter so not
> that hazardous as radioactive things go.
>
> Don
> don.dory@gmail.com
>
>
> On 8/7/06, Haussler, Gerald R - San Mateo, CA <gerald.r.haussler@usps.gov>
> wrote:
> >
> > Gents;
> > isn't Depleted Uranium (DU) nuclear waste ?
> > seems to me the Pentagon found a use for that stuff
> > about 15 years ago. i thought they stopped using it,
> > but i now understand it continues.
> > regards
> > jerry
> >
> > ***************************************************
> > used nuclear waste ;-)
> >
> > Lottermoser George wrote:
> >
> > > Shipping? ; ^ )
> > >
> > > Regards,
> > > George Lottermoser
> > > george@imagist.com
> > > On Aug 7, 2006, at 2:02 PM, Walt Johnson wrote:
> > >
> > >> Sell it to the Saudis
> >
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
> >
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>