On Nov 30, 2011, at 11:45 AM, Hal Murray wrote: >> Speaking of time, what sort of time is the Long Now clock keeping, anyway? >> Solar, atomic, or something else entirely? > > Solar. It's all mechanical. No electronics.
Just to clarify, it is a digital mechanical device with a tenth-Hz "clock" in the computer science sense. It relies on an external analog sync as the Sun crosses the local meridian. The clock discipline can withstand a stretch of tens of thousands of overcast days by, among other things, carefully correcting for the equation of time. Rob _______________________________________________ LEAPSECS mailing list [email protected] http://six.pairlist.net/mailman/listinfo/leapsecs
