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We have a wave tank with a simple mechanical wave generator made of
stainless steel. You pull the handle to move a blade forward in the water
that creates the wave. The inventional addition is that the blade is
folding, thus preventing the "backwave" to soak the visitor. Contact me off
list and I can send a picture of the construction.

Olle

_________________________
Olle Nordberg
Director of Exhibitions
Teknikens Hus
S-97187 Luleå
SWEDEN
tel +46 920 492 212
fax +46 920 492 202
mob +46 705 772 212 
www.teknikenshus.se

-----Ursprungligt meddelande-----
Från: Informal Science Education Network
[mailto:[log in to unmask]] För George Wurtak
Skickat: den 2 november 2005 04:45
Till: [log in to unmask]
Ämne: Re: Ways to Power a Wave Tank

ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related
institutions.
****************************************************************************
*

At the Manitoba Science Centre we built a wave tank with pneumatic (hollow
rubber) bladders, used on semi-trailer truck suspension, on either side of
the fulcrum.  They inflate in alternate periods (using a clock cam) when
visitors push a button.  While it was very reliable it was not terribly
interactive, and certainly not what I think you are thinking of via visitors
pushing on large rubber bladders. I have seen other tanks where visitors
move a plate, horizontally, to create a beautiful wave (possibly at
ScienceWorld B.C.), but I think this was also electrically controlled.
-George Wurtak
Winnipeg, Canada
[log in to unmask]

-----Original Message-----
Date:    Mon, 31 Oct 2005 10:52:05 -0600
From:    Eric Yuan <[log in to unmask]>
Subject: Ways to Power a Wave Tank

Hello,

We are developing a wave tank as part of an alternative energy exhibit and
are looking for a fun way for visitors to create waves. I've heard there's a
wave tank where visitors push against a rubber bladder.  Has anyone seen
such a device, or know about its reliability?

Thank you in advance for your help!
-Eric

***************************
Eric Yuan
Exhibit Developer
The Tech Museum of Innovation
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