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Dave Doe
 
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Default Any thoughts onhow to make this boat better

In article ,
says...

"Dave Doe" wrote in message
. nz...
In article ,
says...

"Dave Doe" wrote in message
. nz...

Can you sink a 'positive buoyancy' boat with water? Can you
sink it with
lead? You've proven my own point.



What do submarines fill their ballast tanks with?


positive bouyancy boat submarine - EVER.



Bzzzt...Oh, I'm sorry, the correct answer is ''WATER'' .

Thanks for playing.


Thanks for your worthless (top posted) posts and links re subs. They
point out what I have already - that subs sink because their overall
density is greater than that of the water they are in.

They DO NOT SINK BECAUSE OF WATER!!! - and none of those articles you
posted suggest they do. They simply describe the bouyancy mechanism
subs use to go up or down in the water.

Like I also suggested to you - why don't you try thinking of something
simpler - such as a diver.

Even a simpleton like you should be able to work out that, just like a
sub, a diver has a bouyancy device - the BCD. However it is of no use,
no matter how much air you drain from it, or replace with water - if the
diver is not wearing their weight belt.

Thanks for the laughs though.

--
Duncan