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Just for grins...
A 6" X 18" cylinder displaces:
     510 cubic inches
     .295 cubic feet
     2.2 gallons
     17.66 lbs
So... subtract the weight cylinder (and contents) from the displaced water =
and you have your bouyancy.
(slow day)
C.


Chris Elmore
College of Liberal Arts
Univ. of SC
(803) 777-1534 office
(803) 348-3055 mobile
Please use this address for all email: chris@sc*.ed*

>>> "Cam Banks" <cam@ca*.co*> 06/02 1:54 AM >>>
You are correct that the displacement is fixed, but the buoyancy will not
always be the same.  Buoyancy is the weight of the water displaced versus
the weight of the displacing object.  Adding weight inside the cannister
will, of course, decrease it's buoyancy.

See, I did learn something from PADI!  Nothing useful though.

Cam

----- Original Message -----
From: "Steve Lindblom" <s_lindblom@co*.co*>
To: <techdiver@aquanaut.com>
Sent: Thursday, June 01, 2000 5:32 PM
Subject: Re: EE canister lights


> Cryptic, very cryptic. If you are not looking for weight, what
> are you looking for?
>
> The canister has a fixed amount of buoyancy as a result of its
> displacement. FIlling it with feathers, epoxy or lead will not effect
that.
> You can make it heavier or lighter, but that displacement and resulting
> buoyancy will always be the same. The only way you can take another 4lbs
of
> you belt is by putting another 4lbs in the canister, and then you'll =
just
> have a heavier canister to lug around ,which you don't seem to want.
>
> >I'm not looking for weight, it just bugs me to lug around 8 pounds
> >which then turn into 1.5 in the water.  If there is a good reason for
> >that, ok, but if there isn't, I'd rather take another 4 pounds off my
> >belt.
>
>
> --
> Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
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>

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