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'[AD]: will add concrete canoe racing to RUBYROUC 2'
2006\08\14@124759 by Gus S Calabrese

face picon face
thanks to all the comments about bubble blowing, RUBYROUC 2006 has
added a new event.
http://nope9.com/projects-axxx/tiki-index.php?page=2006+International
+PIClist+conference
http://nope9.com/projects-axxx/tiki-index.php?page=A326

inspired by http://www.concretecanoe.org/


Gus S Calabrese
4337 Raleigh Street
Denver, CO
720 222 1309     303 908 7716 cell
adding "spam2006" bypasses my spam blocker.  Please place in the text  
or at the END of the subject line.
( i am hard to reach by phone )


2006\08\14@213004 by James Newton, Host

face picon face
James Newton "BASH" (!) What? Piñata? Sputter! Wait a minute now...
What the heck is this?

And how does one recover a concrete canoe in the sad event that it sinks?

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> {Original Message removed}

2006\08\14@214438 by William Chops Westfield

face picon face

On Aug 14, 2006, at 6:30 PM, James Newton, Host wrote:

> how does one recover a concrete canoe in the sad event that it sinks?
>
I believe they must be constructed so that they CAN NOT sink.
Thus the interest in hollow spheres...

BillW

2006\08\15@091554 by M. Adam Davis

face picon face
They have a density that is lower than water.  Some teams simply
create large voids in the canoe ends for this purpose, but most make
the concrete composition less dense than water.

If I understand correctly, one of the competition events includes
completely submerging the canoe near a checkpoint and then bailing it
out before continuing the race.

So it's just like a regular canoe... Only not.

My brother in law helped out a team one year when he was getting his
civil engineering degree, and he made a concrete rose for his wife
which floats in water.  It feels like concrete - but extraordinarily
light.

-Adam

On 8/14/06, James Newton, Host <.....jamesnewtonKILLspamspam@spam@piclist.com> wrote:
{Quote hidden}

> > {Original Message removed}

2006\08\15@092516 by Randy Glenn

picon face
Pffft - concrete canoes. Who needs 'em.

Concrete toboggans - that's some serious business. I'm told some of
those can hit 70-80km/h. 300lb of concrete, with a multitude of (often
drunken) engineering students on top.

http://www.gnctr.info/English%20-%20About%20-%20What%20is%20GNCTR.htm

On 8/15/06, M. Adam Davis <.....stienmanKILLspamspam.....gmail.com> wrote:
{Quote hidden}

> > > {Original Message removed}

2006\08\15@102104 by Tony Smith

picon face
> > how does one recover a concrete canoe in the sad event that
> it sinks?
> >
> I believe they must be constructed so that they CAN NOT sink.
> Thus the interest in hollow spheres...
>
> BillW


Someone mentioned microspheres.  They are so small they look like dust; you
can get different sizes.  

You can buy them easily enough, I've got some here somewhere.  When using
casting resin, they make the piece lighter and a bit cheaper.

Chemicals supply places have them too, I don't know what labs use them for.

Tony

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