Dale: I've got this thing, like Ahab and the whale about building a rain gauge. The problem has been that my understanding of electricity was all wrong. I used a piece of four inch PVC pipe, and put screws in four columns, so that you could read down to the quarter inch. The screws protruded into the inside of the pipe. I used cilacone glue around the screws, and also used that to afix a piece of galvanized metal on the bottom. The plan was to use the pipe like a switch, with a buzzer and a six volt battery. Of course, no way could I get a current through the water, which really astounded me. I had heard about people being electricuted in bath tubs etc. for years.
Is there a way to use this kind of circuit principal to read a gauge like this? And, yeah, next time, I'm gonna use a longer pipe and space the holes differently. I figure if I use a funnel that's four times the area of the inside of a cilinder, then having a read point every half inch, I'd be able to read down to the eighth, is that right? Thanks.
