>> oh, come off it. Your reaction time is nowhere near what ntp -q would >> give you. Using ntp -q run once every hour, and assuming say a 20PPM >> drift for the crystal, his clock would be out by less than a 100 ms due to >> the >> drifting, and your reaction time with your watch ( and wyour watch) are >> nowhere near that accurate.
>Actually, it is on the borderline of the achievable. You phase lock >your finger bounces to the second ticks and just go that little further >on the exact time. It's certainly good to 200ms and possibly good to 100ms. That would be a fun project for a science fair. Build a setup. Collect a lot of data. How much does it vary? For one person, between people, ... How close can you get if you are trying to set a clock? Can you calibrate the person and subtract off a constant? What if you get multiple samples? Many years ago, my boss did that sort of stuff. I think he said that normal reaction time from light-on to button-press was 250 ms. It's faster if there is no penalties for false presses. -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions