home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!haven.umd.edu!mimsy!ecf.toronto.edu!reidld
- From: reidld@ecf.toronto.edu
- Newsgroups: rec.guns
- Subject: Re: shooting under water?
- Message-ID: <93Jan22.175142edt.3044@skule.ecf.toronto.edu>
- Date: 22 Jan 93 23:42:10 GMT
- Sender: magnum@mimsy.umd.edu
- Organization: University of Toronto, Engineering Computing Facility
- Lines: 22
- Approved: gun-control@cs.umd.edu
-
- In article <v5q5ie0@twilight.wpd.sgi.com> erikw@bat.wpd.sgi.com.wpd.sgi.com (Erik Wahlstrom) writes:
- #One other important consideration is the FLASH point of the powder and primer.
- #I recall a problem NASA was haveing with a satellite because it's sun shade did
- #not correctly deploy.Some piece of equipment was about to fail because of the
- #high internal temperature of the craft. Who ever is involved with aerospace
- #correct me if am wrong but i believe temperature differences in the vacuum of
- #space can be close to zero and as high as 450 degrees or more.
-
- Another factor: assuming that the air in the case leaks out, would the
- primer flame characteristics be adversely affected? The lower pressure
- that the hot primer gas is expanding into would tend to give a cooler
- plume of gas and hot particles. If your powder happens to be extermely
- cold (perhaps because you left your gun in the 'shade' for 20 minutes
- or so), you may not be able to ignite the powder. But then, if your powder
- was at 200C or so after soaking up the sun, things may be interesting...
-
- For longer storage, volatile components of the powder would be lost, changing
- the burn characteristics.
- --
- reidld@ecf.toronto.edu (Daniel Chisholm)
- reidld@ecf.toronto.edu (Daniel Chisholm)
-
-