The monofilament fishing line is a truly novel idea. It is clear so a few feet should pass a signal all right. What a variation on the old mechanical telephone made from two cups and a piece of fishing line! To me, the big fiscal stumbling block is not the fiber as much as the connectors that one has to use to properly terminate a piece of fiber. The guys that do fiber here at the university where I work use $20,000 fusion splicers and each connector that feeds in to a router or patch panel costs several Dollars. What we need is some kind of clear goo with the same index of refraction as the fiber that would allow one to cut the fiber with a pocket knife or pair of wire cutters and still have it work correctly. This discussion also reminds me of my days in the eighties as an audio visual service technician. I once discovered that film carries a tiny trace of the projection lamp's light within the clear backing material. It's known by many technicians that you can make a lot of noise by putting your hand in front of the projection lens and reflecting the light which is modulated by the shutter back towards the machine. If you have the covers off the sound optics, some of that light will get to the photo cell and you hear a 72-HZ square-wave buzz in the speaker. I once discovered that I could hear a tiny bit of that buzz if there was film in the projector and no exciter lamp. If one ran the projector with no film, the faint buzz was gone. This says to me that a little light was bouncing around between the front and back surfaces of the film, itself and causing the film to appear to glow slightly as it passed over the photo cell. I also once held a scrap of fiber in such a way as to catch some of the projection lamp light while I held the other end approximately where the exciter bulb went. You could hear faint sound if you got everything just right. The other folks in our shop thought I was kind of crazy. Hey! One of my favorite questions about technology is, What else can you do with it? Martin McCormick WB5AGZ Stillwater, OK OSU Center for Computing and Information Services Network Operations Group -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics