From owner-freebsd-stable Sat Feb 15 1:48:19 2003 Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 71DFF37B401 for ; Sat, 15 Feb 2003 01:48:17 -0800 (PST) Received: from rutger.owt.com (rutger.owt.com [204.118.6.16]) by mx1.FreeBSD.org (Postfix) with ESMTP id AE06943FAF for ; Sat, 15 Feb 2003 01:48:16 -0800 (PST) (envelope-from kstewart@owt.com) Received: from topaz-out (owt-207-41-94-233.owt.com [207.41.94.233]) by rutger.owt.com (8.9.3/8.9.3) with ESMTP id BAA01587; Sat, 15 Feb 2003 01:48:01 -0800 From: Kent Stewart To: Pete French , dillon@apollo.backplane.com, kudzu@tenebras.com Subject: Re: ECC memory error reporting Date: Sat, 15 Feb 2003 01:48:01 -0800 User-Agent: KMail/1.5 Cc: des@ofug.org, doconnor@gsoft.com.au, emechler@techometer.net, freebsd-stable@FreeBSD.ORG, wkb@freebie.xs4all.nl References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200302150148.01126.kstewart@owt.com> Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Saturday 15 February 2003 01:28 am, Pete French wrote: > > You are forgetting about all of the wristwatches that glowed in the > > dark. They are probably much more common in the antique shops. Or > > the pretty yellow painted dished that were painted with a U based > > paint. > > Bringing things more up to date - what about those Tritium keyrings > that were all the rage at christmas ? I;ve got about ten of them in > the spare room and it might be interesting to do some memory > experiments with them, assuming they are sufficiently radioactive. Tritium has a 12.5 year half life and gives off a low energy beta particle and no gamma. IIRC, a sheet of paper is supposed to stop betas. Radium, which was used in the early glow-in-the-dark watches, mostly gives off energetic alphas and gammas. Some isotopes of radium have half lives in seconds and some in K years. The daughter products aren't any nicer. When it comes to being nasty, Tritium isn't even on the same planet. Kent -- Kent Stewart Richland, WA http://users.owt.com/kstewart/index.html To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message