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during the Olympics there is a commercial
showing some Vikings sailing, even water skiing, while the other sailors
still row their boats. they also show some wind turbines. I noticed
that the blades on the turbines look very much like the ellipse prop, a high
ratio, very thin chord. someday maybe house fans might even have blades
that work efficiently (ever see a plane with a prop like a fan? they look
more like boat props to me). I just find it interesting how after
something is brought to your attention, you start seeing it elsewhere.
another obvious example is ed's manifold work. articles are springing up
in several mags about that phenomenon.
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