Deletion of Lake piston

Comment: Actually, neither of the devices mentioned by Jethrobot are similar to the "lake piston" described in the subject article.  The subject article talks about a piston that is driven by the thermal expansion of lake water due to seasonal temperature variations.  The practicality of such a system is so negligible that I have to attribute this article as a |hoax
Stance: delete
Cited policy: Wikipedia:Do not create hoaxes (WP:HOAX)