A while back there was some ideas being floated for generating electric
power from air to drive some electronic controls.
Well just today I was having a look at the new goodies from MAC TOOLS
and saw that they have an "AIR POWERED LIGHT" to attach to your air
tools to give you light right where you need it.

-The light bulb is only rated at 2.5V .3A
-It is very small and light.
-uses small air volume
-generated noise low
-Canadian Price ~$135.00

Maybe output could be increased? (Using the charging a super cap idea)
Just thought you might be interested.

 CUTTLER! wrote:

> A general "square" DC brushless muffin fan will not work because it
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>  The average computer fan is rated 12V, 0.15A, making it 1.8W rating.
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> Probably a good 24V 5W rated will give, when driven by air to same rpm
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> I read some company make a ejector-kind of "flow amplifier", maybe
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>  I'd go rather with Father Tom's concept - the "shaker-torch" system.
>Few moving parts, slow (comparatively) speed, minimal noise.  But I'd
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>sleep whenever possible.  By so doing, operation from a supercap should
>be possible.
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