> >Check out Bill Nye's video "momentum".....he uses rockets and I think he >says much the same thing. > >I happen to know Rafael has a degree in physic - although Matt is a great >science guy too. This may sound funny, but I invite you to do the experiment I have done many times, since I am underwater often. I have experienced the rocket effect every time I use my bilge pump in tranquil waters. As I pump water, and water is leaving to the right of my kayak, the whole kayak moves slowly to the left, even though my arms are moving in a vertical direction pumping up and down. Same thing if water leaves left the kayak moves right. Thatīs a clear proof of momentum conservation. Try it. Another useful one has to do with the fact that when you start your roll with your hip flick, with your body far out from the kayak, and you bring the body into the kayak on a C to C roll or laying on the back deck, the rotation speed is increased, in order to conserve momentum. This is the same as an ice skater that is rotating and closes the arms. Momentum conservation increases his speed. If he opens the arms he slows down again. Best Regards, Rafael el cayuco chief *************************************************************************** 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 Jul 29 2002 - 07:02:17 PDT
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