More importantly, does this impose an upper limit on data transport speed over networks, in particular wireless networks? If and when one produces the network technology that would demand the accuracy and precision of these new standards, if one object is moving relative to the other, there could be loss of data as the moving clock goes out of sync with the stationary one. We know this was possible just from special relativity, but motion at "normal" speeds does not contribute appreciably at the currently achievable accuracies and precisions. However, with the next generation, driving in a car or certainly flying in a plane will limit bandwidth. And, of course there's the gravitation effect to contend with in the future as well, which could also limit bandwidth.
As I am thinking about this, does this impose a limit on GPS accuracy and precision based on the next gen technology? Jeff Jeffrey K. Okamitsu, PhD, MBA +1-609-638-5402 US Mobile Phone +1-240-421-0692 GSM Mobile Phone ________________________________ From: Pieter ten Pierick <time-nuts-m...@tenpierick.com> To: Discussion of precise time and frequency measurement <time-nuts@febo.com> Sent: Wed, September 29, 2010 12:55:59 PM Subject: Re: [time-nuts] Next Generation Time/Frequency Standards May Require Provisions Preventing Vertical Displacement Hi, > See the following: > > http://www.nature.com/news/2010/100923/full/news.2010.487.html > > Of course, we're probably a few years away from seeing commercially > available > instruments with the required precision/accuracy...but it will come. I read that the moving of NIST F1 1 floor indeed changed the frequency quite a bit. (The change in altitude was 11.5 feet) That article also mentioned that the warming up of the building itself in summer has an effect on some of the newest research clocks, because the environment changes shape... See http://www.wired.com/science/discoveries/news/2007/12/time_nist?currentPage=all (Not that those clocks are commercially available, though :-/ ) Greetings, Pieter. > > Jeff > Jeffrey K. Okamitsu, PhD, MBA > +1-609-638-5402 US Mobile Phone > +1-240-421-0692 GSM Mobile Phone > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.