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Piezoelectric Generators
Teahouse writes: "The U.S. Navy has developed this polymer "eel" that they dump in the water and get a trickle charge back. The biggest application for this would be for deep sea bouys that track weather across the pacific. This could extend accuracy, and lifespans...and save a few lives along the way. Here is the story." NOAA uses buoys that are solar powered and are left out for a year or more at a time, but I imagine that if this worked they'd be interested, too.
I have been doing a reserch paper on this stuff, some great resources also found at:
? I=331&ParentID=146
7 /p37.html
http://www.piezo.com/kgs.html
http://www.avxcorp.com/prodinfo_productdetail.asp
http://www.ndt.net/article/yosi/yosi.htm
http://www.tokin.com/Tokin_America_Products/37/p3
http://www.biospec.com/HomePage/Review.html
http://www.morganelectroceramics.com/pzmat1.html
Have fun...
Two infinite things: your stupidity and mine. But I'm not sure about the latter. If my sig offends you, I'm sorry.
I suspect that the Navy really developed this as a way to expand the SOSUS (SOund SUrveillance System) sonar network, which presently uses long undersea cables to connect the sensors to the monitoring point. Being able to drop buoys wherever and immediately start collecting data would be a great boon. There have been earlier unattached buoys used by the Navy, but they were typically deployed against a specific threat and died quickly. A perpetually self-powered one that didn't have to poke a large solar array above the water and betray its presense would be far better. It would certainly be much less vulnerable to having the enemy (and the occasional accident) cut the sensor cables.
A football scarf is a long (5-9ft) knitted scarf displaying the names of footballers (soccer-club players). They look like this. They're popular among football (soccer) fans in cold European climates: they let you root for the home club without having to take off your warm coat.
Read the rest of this comment...
...if you stick something in the ocean, one of
three things will happen:
1 - something will grow on it
2 - something will try to eat it
3 - it will corrode
There are *no* exceptions to this rule.
--
TO BUY A NEW CAR WOULD MAKE YOU SEXUALLY ATTRACTIVE.
I wonder what sharks and other predators will think of this thing waving around in the water. It looks like a big artificial worm or something. Will these things have any predator repellant of any sort?