I think I recall seeing on a wall display in an aquarium that different fish swim differently; some use a long, sinusoidal motion, like eels, while others, like tuna, work differently. I do agree with previous posts that it is probably more complex than just two peizo-plastic plates, and that its efficiency, at first glance, would seem to depend heavily on the efficiency of the peizoplastic technology. Someone should study this, and apparently, someone is. I sent a letter off to a friend of mine in the AI department at MIT. He knew of Charlie the Robotic Tuna, and said it probably had a web page somewhere. He pointed me at http://www.ai.mit.edu and I poked around there for a while. Didn't find Charlie, but I didn't have time to search fully (I seem to have plenty of time for email, though....). If someone else can find it, let me know. Anyway, I did see a mention of some kind of artificial muscle experiments. Sounds better than just peizoplastic, and might be what Charlie uses. #----------------------------------------------------# Roger Carlson H 310-frogger Somewhere off Hermosa Beach, CA W 310-813-0858 Roger_Carlson@at*.sp*.tr*.co* F 310-812-1363 #----------------------------------------------------#
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