Posted: Feb 23, 2011 4:36 pm
The PH gradient propulsion reminds me of a soap boat.
[youtube]http://www.youtube.com/watch?v=5u8ED8d6qb0[/youtube]
[youtube]http://www.youtube.com/watch?v=5u8ED8d6qb0[/youtube]
Lifeboat for the rational mind :D
http://www.rationalskepticism.org/
http://www.rationalskepticism.org/viewtopic.php?p=732252#p732252