Return-Path: Received: from mtain-dg09.r1000.mx.aol.com (mtain-dg09.r1000.mx.aol.com [172.29.65.17]) by air-di01.mail.aol.com (v129.4) with ESMTP id MAILINDI014-eab94ce8494a2c3; Sat, 20 Nov 2010 17:18:50 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dg09.r1000.mx.aol.com (Internet Inbound) with ESMTP id 0A0FD380000DC; Sat, 20 Nov 2010 17:18:48 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PJvkK-0002YS-Lr for rs_out_1@blacksheep.org; Sat, 20 Nov 2010 22:17:24 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PJvkK-0002YJ-AE for rsgb_lf_group@blacksheep.org; Sat, 20 Nov 2010 22:17:24 +0000 Received: from 113-mo2-8.acn.waw.pl ([62.121.95.113] helo=paranoid.lipkowski.org) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PJvkH-0002qO-Vd for rsgb_lf_group@blacksheep.org; Sat, 20 Nov 2010 22:17:24 +0000 Received: from paranoid.lipkowski.org (localhost [127.0.0.1]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id oAKMHJg3004561 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sat, 20 Nov 2010 23:17:19 +0100 Received: from localhost (sq5bpf@localhost) by paranoid.lipkowski.org (8.13.7/8.13.6/Submit) with ESMTP id oAKMHJ9G004558 for ; Sat, 20 Nov 2010 23:17:19 +0100 X-Authentication-Warning: paranoid.lipkowski.org: sq5bpf owned process doing -bs Date: Sat, 20 Nov 2010 23:17:18 +0100 (CET) From: Jacek Lipkowski To: rsgb_lf_group@blacksheep.org In-Reply-To: <23D1DE4ACD7A42A1B4A42B2A11C37A84@White> Message-ID: References: <1290270401.1475.15.camel@gerhard-desktop> <23D1DE4ACD7A42A1B4A42B2A11C37A84@White> MIME-Version: 1.0 X-Spam-Score-sq5bpf: -2.601 () BAYES_00,SPF_HELO_PASS,SPF_PASS X-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: VLF: Funny things! Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G x-aol-sid: 3039ac1d41114ce8494878d0 X-AOL-IP: 195.171.43.25 X-Mailer: Unknown (No Version) On Sat, 20 Nov 2010, Markus Vester wrote: [...] > Regarding the cats' hearing, I can definitely confirm your observation. Our > two cats didn't seem to be bothered by the transformer or coil noise at all. > They were simply inspecting the hardware with due curiosity, and one of them > even took a nap in the vicinity. And I am sure they do hear well, proven by > their unambiguous reaction to certain little noises coming from the kitchen Marcus, maybe it's because they practiced listening to DHO38 for so long, that a 9kHz whine doesn't annoy them now :) they hear up to 64kHz according to this: http://www.lsu.edu/deafness/HearingRange.html VY 73 Jacek / SQ5BPF