I have a Popular Science magazine here (or maybe it's in one of my
Popular Mechanics magazines) from earlier this year with an article
about a wind pipe someone is expeimenting with.The pipe tapers smaller
toward the middle section of the pipe (venturi effect) than at the ends
of the pipe.The wind going through either end of the pipe speeds up and
spins a generator in the middle section of the pipe,according to the
article in the magazine.It is nothing but a big pipe with a generator in
the middle of the pipe.Stick a big kite way up in the air/wind,let the
tether line tug on some gears and spin a generator.
cuhulin