Subject: Re: baidarka stability
From: Craig Keller (craigk@chem.ucsb.edu)
Date: Wed Dec 20 2000 - 22:29:06 EST
There is the problem of the small dense ballast falling through the bottom
of the boat.... ;->
On an equally serious note, there is something unappealing about a hunk of
uranium (yeah, I know it's depleted) at "keel level". It's like the
old warnings in lab about not carrying the radioactive sources in your
pockets.
Always wanted to play with a chunk of depleted uranium. Something
facinating about something soooo dense.
On Wed, 20 Dec 2000, Andrew Lukban wrote:
> What would really be trick is to use an old "lead apron" that is used for fluoroscopy. A
> lot of hospitals just chuck them out when they get torn or get pinholes in them. Their
> plus side is that they are "rubberized lead sheets" so you can actually use them as butt
> or spine pads. They're really quite managable.
>
> Now, if you really want pinpoint control in modifying center of gravity, I've got this
> chunk of depleted Uranium that fits in the palm of my hand but feels about twice heavier
> than similarly sized lead!
>
>
>
> Craig Keller wrote:
> >
> > A gallon of water weighs aproximately 8 pounds. For 50 pounds, that means
> > 6.25 gallons. I bought 50 lbs of lead shot today (looks like about two
> > quarts worth, water is much cheaper BTW); the same equation means that I
> > need float bags with at least 6.25 gallons of volume to float the lead if
> > the boat should happen to fill with water. The one advantage of lead is
> > that the weight can be placed very low in the boat enhancing the stability
> > gained per pound of ballast. Harvey has mentioned the disadvantages.
> >
> > -Craig
> >
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Dr. Craig Keller +1 805 893 5845
Department of Chemistry and Biochemistry +1 805 893 4120 (fax)
University of California craigk@chem.ucsb.edu
Santa Barbara, CA 93106-9510
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