Voltage Calibration - Do you think the volt meter in your Palm is way off? Are you changing your batteries too early? You have a digital voltmeter? Or at least a friend with a voltmeter? Try out Voltage Calibration then.
It allows you to compensate the error of the internal voltmeter of any Palm (works for all OS)
WaterFlow - Hydraulic application. This is a helpful tool for engineers and students. Calculate energy heads, geometric elements in a open channel, ditch or canal, hydraulic jump, and the Reynold's number. Take it for a spin and use this handly tool.
Pipes: Claculate the energy head of a duct, pipe under pressure, using the Bernoulli equation between two points
