On Mar 11, 2007, at 3:45 PM, jaymtb_at_amigo.net wrote: > I've been working on an idea to put beach pebbles in pouches and > attach > them to the weight belt for diving, then just dump them when it is > time to > move camp, to save carrying weight. Obviously, lead is about 4-5 > times as > heavy per unit as most rock, so more rock will be needed. > Presently, I'm > working on some weight pouches as an experiment. Remember to take into account that the buoyancy of water will effect the apparent weight of your rocks when submerged. If you need 30 lbs of lead, you could not for example replace this with 30 lbs of wood. The weight of wood and lead in the water is not the same. Or, strapping on 30 lbs jugs of water would not do anything. Likewise with rocks, while they will still help you sink, since they are substantially less dense than lead, the water will support the rocks more than it would lead. In other words, you may need 60 lbs of rocks to achieve the same effect as 30 lbs of lead. You may end up needing more rocks than is practical to dive with. Nick Schade Guillemot Kayaks 824 Thompson St Glastonbury, CT 06033 USA Ph/Fx: (860) 659-8847 http://www.guillemot-kayaks.com/ *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Mon Mar 12 2007 - 06:24:46 PDT
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