David Malone wrote: >100ks is almost 28 hours. I don't know for certain, but I suspect >a flight accross 4 hours is enough to jetlag some people. That >probably means it's a little too long to use as a day.
The problem there is in suddenly being 4 hours out of synch with the sun, and having to shift phase. Phase shifting is difficult. I think people are much more flexible about diurnal frequency than you think, especially if the appropriate cues are around to support it. There's some fairly well-known research to the effect that the human biological clock actually has a natural period of 26 hours or so, and its only our exposure to planetary rotation that keeps us on a 24 hour cycle. I've previously mentioned on this list that my personal free-running diurnal cycle is 40 hours, empirically determined when I was an undergrad and had no daily responsibilities. -zefram _______________________________________________ LEAPSECS mailing list LEAPSECS@leapsecond.com http://six.pairlist.net/mailman/listinfo/leapsecs
