Here is one that has a steady picture over a relatively long period of time.
http://www.youtube.com/watch?v=0HX_L-FDLCc&feature=relmfu
The best footage on this one is in the second half. Turn the sound down if the frenetic hyperventilation of the film crew bores you.
http://www.youtube.com/watch?v=DNL7ASvl4k4
Same is true here; lots of tiresome melodrama and shifting camera at the beginning, but the stuff from the middle on is breathtaking.
http://www.youtube.com/watch?v=PsTDWgmPCuY&NR=1
Sometimes it appears as if the visible tornado is doing the damage; sometimes it appears as if the air around the tornado Is doing the damage.
Again, I would love to know how these WORK?
Nick
Nicholas S. Thompson
Emeritus Professor of Psychology and Biology
Clark University
http://home.earthlink.net/~nickthompson/naturaldesigns/
http://www.cusf.org
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