The key is to have enough empty space at the center, so that the overall
density is less than that of water.
On September 2, 2014 12:12:02 PM CDT, Martin Koppenhoefer
<dieterdre...@gmail.com> wrote:
> 2014-09-02 17:46 GMT+02:00 Clifford Snow <cliff...@snowandsnow.us>:
>
> > Then again if I made a pontoon out of concrete, they'd just sink.
>
>
>
>
> While I generally agree with your agreement, this is not true, ships
> can be
> built out of concrete (think aircraft carriers for instance), and
> German
> universities even hold a regular competition who builds the best canoe
> out
> of (fibre)cement: http://www.betonkanu-regatta.de/
> ;-)
>
> cheers,
> Martin
>
>
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John F. Eldredge -- j...@jfeldredge.com
"Darkness cannot drive out darkness; only light can do that. Hate cannot drive
out hate; only love can do that."
Dr. Martin Luther King, Jr.
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