Return-Path: Received: (qmail 87039 invoked from network); 27 Aug 2004 09:06:43 -0000 Received: from unknown (HELO ptb-spamcore02.plus.net) (192.168.71.3) by ptb-mailstore02.plus.net with SMTP; 27 Aug 2004 09:06:43 -0000 Received: from mailnull by ptb-spamcore02.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1C0cgS-000Ifx-7E for dave@picks.force9.co.uk; Fri, 27 Aug 2004 10:06:09 +0100 Received: from [192.168.67.2] (helo=ptb-mxcore02.plus.net) by ptb-spamcore02.plus.net with esmtp (Exim 4.32; FreeBSD) id 1C0cgS-000Ifu-4g for dave@picks.force9.co.uk; Fri, 27 Aug 2004 10:06:08 +0100 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1C0ch0-0006Eo-6V for dave@picks.force9.co.uk; Fri, 27 Aug 2004 09:06:42 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1C0cgL-0000pK-Ej for rs_out_1@blacksheep.org; Fri, 27 Aug 2004 10:06:01 +0100 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1C0cgL-0000pB-2y for rsgb_lf_group@blacksheep.org; Fri, 27 Aug 2004 10:06:01 +0100 Received: from imo-m14.mx.aol.com ([64.12.138.204]) by relay.thorcom.net with esmtp (Exim 4.41) id 1C0cgI-0007h6-08 for rsgb_lf_group@blacksheep.org; Fri, 27 Aug 2004 10:06:01 +0100 Received: from G0MRF@aol.com by imo-m14.mx.aol.com (mail_out_v37_r3.4.) id l.36.60dff716 (4340) for ; Fri, 27 Aug 2004 05:05:49 -0400 (EDT) From: G0MRF@aol.com Message-ID: <36.60dff716.2e60536c@aol.com> Date: Fri, 27 Aug 2004 05:05:48 EDT To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: 9.0 for Windows sub 5003 X-SPF-Result: relay.thorcom.net: domain of aol.com designates 64.12.138.204 as permitted sender X-Spam-Score: 1.1 (+) X-Spam-Report: autolearn=no,HTML_30_40=0.809,HTML_MESSAGE=0.001,NO_REAL_NAME=0.285 Subject: LF: Re: Gas for balloons Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.1 required=5.0 tests=HTML_30_40,HTML_MESSAGE, NO_REAL_NAME 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-Spam-Filtered: by PlusNet SpamCORE (v3.00) Content-transfer-encoding: 8bit

In a message dated 27/08/2004 08:28:56 GMT Standard Time, g8cix@btconnect.com writes:

The latest Maplin Catalogue is now offering a gas cylinder and 30 balloons
for £39.

As a matter of interest you might like to know that one cubic meter of
balloon gas will lift one kilo.

Regards

Martin Maynard

Thanks Martin.

That's an interesting fact.

I had in mind something 'industrial' in scale - An advertising blimp etc.

Hence the interest in the industrial scale of the gas supply, but good to know from members of the group that balloon gas is widely available.

I wonder how the lifting capability of Hydrogen compares to the balloon gas?

It has several major disadvantages - small atomic size so it leaks quickly, not to mention the real posibility of re-creating the Hindenberg disaster. but it has the best lift capability.

Regards

David G0MRF