A big part of the problem is the affinity that water has for glass and it 'sticks' to the glass distorting the image seen through that glass - - a product called "RainX" changes that 'like' to a 'dislike' and the water beads up and quite literally balls up and 'rolls off'. I highly recommend it for long trips (in the rain) - or for when your wipers have died and it isn't practical to effect a repair right away. Using RainX *almost* removes the need for wipers at all ... RF Jim ----- Original Message ----- From: "Herbert Graf" To: Sent: Monday, November 04, 2002 9:07 AM Subject: Re: [EE]:Infra-red Opto help > > Do people really pay for devices to automatic turn > > on their wiper thingies so they don't have to > > reach down and flick a switch? Are these the same > > people who don't know which way to look when > > driving in the rain? > > > > I would suggest that they stop the car on the > > road, crawl underneath it and see if the road is > > wet or dry. > > > > I have found that a wet road smells like a wet > > potato chip, if that is any help. > > Actually, as silly as it sounds, the point of "rain detecting wipers" is > more than just turning them on. It's the rate of wiping that's important. > Often, when driving in stop and go traffic, one finds that while traveling > fast the wipers need to wipe more often, when travelling slower the wipers > don't need to wipe as often. When in stop and go traffic this becomes quite > annoying since you are constantly adjusting the speed of the wipers. Rain > sensing wipers do away with this problem by sensing when enough of the > windsheild is obscured and activate the wipers for one wipe. It is a feature > I truly wish I had on my car, I am in stop and go traffic quite often and > such a feature during moderate rainfall is a Godsend. TTYL > -- 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