[quote=DamonLinkous]I watched it with the same smug assurance that they were wasting an episode of my favorite show. I hate it when they spend time on something that is just plain stupid and anyone who can think should know better. (Prime example is the "theory" that an airplane wouldn't be able to take off from a treadmill)
This one was a surprise but the result was obvious once it was done. By using a really big fan against a curved surface (square sail) they simply produced a really inefficient ducted fan which produced enough thrust in the right direction to propel their boat at 3 mph.
Loved being surprised.[/quote]
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