2014-09-02 17:46 GMT+02:00 Clifford Snow <[email protected]>: > 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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