Return-Path: Received: from pop3.olsusa.com ([63.150.212.2] verified) by logan.com (CommuniGate Pro SMTP 3.5b5) with ESMTP id 925119 for rob@logan.com; Fri, 19 Oct 2001 06:49:06 -0400 Received: from mail015.syd.optusnet.com.au ([203.2.75.178]) by pop3.olsusa.com (Post.Office MTA v3.5.3 release 223 ID# 0-71866U8000L800S0V35) with ESMTP id com for ; Fri, 19 Oct 2001 04:03:51 -0400 Received: from user (porax3-090.dialup.optusnet.com.au [198.142.88.90]) by mail015.syd.optusnet.com.au (8.11.1/8.11.1) with SMTP id f9J8BF518584 for ; Fri, 19 Oct 2001 18:11:16 +1000 Message-ID: <001c01c15874$0b41d940$5a588ec6@user> From: "Robert Overmars" To: "lancair list" Subject: freezing, brrr Date: Fri, 19 Oct 2001 17:59:54 +1000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Mailing-List: lancair.list@olsusa.com Reply-To: lancair.list@olsusa.com <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> I'm suddenly curious about the freezing temperature of water or vapour to ice. With decreasing ambient pressure such as when climbing to altitude the boiling point of water lowers. Such that at the top of Mt Everest it's not possible to boil an egg. I have a vacuum pump that will suck down to 1/2000 of atmospheric pressure, when experimenting and pulling a hard vacuum on water at approx 25'C it boils and gets very cold and turns to ice rapidly. Obviously with decreasing pressure (ie Altitude) the boiling point lowers, but what about the freezing point? Does any one have any data on this? Just curious Roberto d'Australia. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please send your photos and drawings to marvkaye@olsusa.com. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>