Archived posting to the Leica Users Group, 2006/08/08
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hoppy The old shape charge routine was supposedly bad juju as well. Small hole in armor but lots of metal zinging around inside the target. G Hopkinson wrote: >Adam, t'was meant to be a slightly light-hearted point not a literal figure. > >Hence scientific phrases such as "VERY bad juju". > >Just wrote the note off the top of my head, since Don seemed interested. It >would be reasonable to agree that it is very unhealthy should you >internalise it, for a very long time. >No agendas involved except I was very OT;-). > >Cheers >Hoppy > >-----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 >Adam Bridge >Sent: Wednesday, 9 August 2006 02:33 >To: Leica Users Group >Subject: Re: RE: [Leica] [was] Another Altered Photo / now WAY OT > >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 >> >> >> >> > > > >_______________________________________________ >Leica Users Group. >See http://leica-users.org/mailman/listinfo/lug for more information > > > >