At 10:39 PM 9/5/01 -0400, you wrote:
>Pressure sensor comes to mind, like what they do in air planes. TTYL

Called a Pitot tube, and the first tests were made in a river in 1732
by a gentleman named Henri de Pitot.

There are some subtleties in the design of both the static pressure
probe and the total pressure (static + dynamic) probe, depending on the
angle of attack and so on.

Best regards,
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Spehro Pefhany --"it's the network..."            "The Journey is the reward"
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Contributions invited->The AVR-gcc FAQ is at: http://www.bluecollarlinux.com
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