Is this true?? (TI & watches

Hi The use of quartz crystals in watches did take some invention. Most crystals used for oscillators would have either had to be made very large to get to lower frequencies or run at high frequencies. Running at high frequencies would run the battery down quite soon. It was the concept of the cantilever mounted crystal that allowed a piece of quartz to both oscillate at a low frequency and be small as well. They also found a cut with the right temp coef to work well attached to a humans arm. It was these things that made the quartz watch work. The Swiss were into making chronometers. This also required that they maintain exact time, over a wide range of temperatures. With out additional correction, these quartz watches can't meet such requirements. Of course, the Swiss didn't think that most would keep their watch with them most of the time and would still be quite accurate. Such is life. When looking at the inventions of the twentieth century, I have considered the quartz oscillator to be the most important. No good replacement has been found. Tubes to transistors to FET's and the quartz crystal is still essential. Dwight _________________________________________________________________ Don?t miss your chance to WIN 10 hours of private jet travel from Microsoft? Office Live http://clk.atdmt.com/MRT/go/mcrssaub0540002499mrt/direct/01/