Subject: Re: baidarka stability
From: robert spano (rspano@attglobal.net)
Date: Thu Dec 21 2000 - 12:46:02 EST
if you think that depleted uranium is dense you should meet my boss!!!-- i'm
thinking neutron star here.
robert
----- Original Message -----
From: Craig Keller <craigk@chem.ucsb.edu>
To: <baidarka@lists.intelenet.net>
Sent: Wednesday, December 20, 2000 7:29 PM
Subject: Re: baidarka stability
> 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
> > >
> > -
> > Baidarka Mailing List - All postings copyright the author and not to be
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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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