> > How would you like to count practically every raindrop? > > > What it does is "listen" for raindrops. How will it know it's rain or > birdseed? Heavy rain or a light drizzle? And more importantly how much rain > is falling? >..... > Benefits are, it will have no mechanical moving parts, no corrosion, > adaptable to function as a rain detector, liquid flow detector or count > small falling objects like screws, nuts, ball bearings, etc. > There are devices that measure rain by shaping every drop into the same size and the Frequency of the drops coming off the bottom of this plumb-bob looking device is proportional to the actual rainfall. I know this because the chap who taught me to programme microcontrollers was working on the controller for such a device and I have found the units for sale on the web..cant remember where though. _____________________________ Lance Allen Technical Officer Uni of Auckland Psych Dept New Zealand www.psych.auckland.ac.nz _____________________________