Date: Thu, 11 Oct 2001 02:52:31 -0700 From: "Ted Mittelstaedt" <tedm@toybox.placo.com> To: "Brad Knowles" <brad.knowles@skynet.be>, <cjclark@alum.mit.edu>, "Salvo Bartolotta" <bartequi@neomedia.it> Cc: "P. U. (Uli) Kruppa" <root@pukruppa.de>, <freebsd-chat@FreeBSD.ORG> Subject: RE: Use of the UNIX Trademark Message-ID: <00ca01c1523a$71e999c0$1401a8c0@tedm.placo.com> In-Reply-To: <a05101003b7eb12fedac9@[194.78.144.28]>
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>-----Original Message----- >From: Brad Knowles [mailto:brad.knowles@skynet.be] >Sent: Thursday, October 11, 2001 2:22 AM >To: Ted Mittelstaedt; cjclark@alum.mit.edu; Salvo Bartolotta >Cc: P. U. (Uli) Kruppa; freebsd-chat@FreeBSD.ORG >Subject: RE: Use of the UNIX Trademark > > > However, all that said, by far the most dangerous of all >gases that are used in welding and similar activities is compressed >Oxygen. All other flammable gases will have a hard time finding >enough oxygen to burn cleanly or completely, if they are released by >accident (such as in an explosion). However, with enough oxygen >present, just about anything can be burnt very, very easily. > > I would seriously hope that these people weren't actually >using compressed oxygen, but perhaps instead compressed Nitrogen, or >some relatively inert gas. > Actually I think it probably was nitrogen, it's cheaper. The basic idea was to use a welding cylinder where the gasses are under thousands of pounds of pressure so as to get the most work out of it. Another thing I just remembered about compressed oxygen is that you can't have any impurities in the lines, no grease oil, etc. as that will explode when hit with compressed oxygen under that pressure, that definitely didn't meet the criteria for those actuators, as they didn't use special lines. Ted Mittelstaedt tedm@toybox.placo.com Author of: The FreeBSD Corporate Networker's Guide Book website: http://www.freebsd-corp-net-guide.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message
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