[Tagging] "floating" or "pontoon" bridges?

John F. Eldredge john at jfeldredge.com
Tue Sep 2 18:36:09 UTC 2014


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 <dieterdreist at gmail.com> wrote:
> 2014-09-02 17:46 GMT+02:00 Clifford Snow <clifford at 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
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Tagging mailing list
> Tagging at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/tagging

-- 
John F. Eldredge -- john at 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.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/tagging/attachments/20140902/7e5159ef/attachment.html>


More information about the Tagging mailing list