Dear Humberto and Tonja,
Try asking the reference librarian at your local library.
They provide expert help to answer such questions as this and for free.
3601 Lyon Street
San Francisco, CA 94123-1099
On Wed, 19 Nov 2003, Humberto & Tonja Sepulveda wrote:
> How can I get information on how a Cartesian diver works and how people use it for things?
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