It is hard to believe that they would go public with such earth shaking results based on a single GPS timebase, but I have found it is easy to focus on the test head and neglect the back end of an experiment. I must also admit it is even worse science for someone sitting in Boulder Co like myself to second guess these brilliant researchers without all the facts. In any case I am really look forward to the cause of this mystery. I hope public will judge CERN on their successes and understand that in science there is really no such thing as a mistake if we learn from it.
Thomas Knox > To: time-nuts@febo.com > From: gw...@raytheon.com > Date: Thu, 23 Feb 2012 13:57:11 -0500 > CC: time-nuts-boun...@febo.com > Subject: Re: [time-nuts] Neutrinos not so fast? (defectove connector) > > > A possible mechanism occurs to me. High-precision GPS is very vulnerable > to multipath errors. A loos connector will have a significant reflection. > The reflected energy will propagate backwards, and be reflected off the > transmitter output discontinuity, the twice-reflected energy propagating > back to the receiver. The original and the triple-transit echo will add > coherently (for the modulation, not the photons) in the receiver. This is > a perfect multipath scenario. How long must the cable be? Depends on the > relative strength of main signal and triple-transit echo. > > Joe Gwinn > > > time-nuts-boun...@febo.com wrote on 02/22/2012 06:31:54 PM: > > > From: Jim Palfreyman <jim77...@gmail.com> > > To: rich...@karlquist.com, Discussion of precise time and > > frequency measurement <time-nuts@febo.com> > > Date: 02/22/2012 06:32 PM > > Subject: Re: [time-nuts] Neutrinos not so fast? (defectove connector) > > Sent by: time-nuts-boun...@febo.com > > > > Maybe the loose connector meant the clock at one end *never* synced with > > the GPS and just happened to be 60ns fast. Tighten the connecter, clock > > resyncs, problem solved. > > > > Jim > > > > > > On 23 February 2012 09:57, Rick Karlquist <rich...@karlquist.com> wrote: > > > > > Maybe they checked the connector by replacing the whole > > > fiber optic cable with a new one, and while doing that > > > had the "oh sh.." moment of realizing the length of the > > > old one was 20 meters different than it was supposed to be. > > > I think this sort of thing has happened to all of us > > > with significant experience. Or maybe the cable was marked > > > with an incorrect length (not due to error by the experimenters) > > > and they forgot "trust but verify". We've probably all > > > gotten bit by that one as well. > > > > > > Rick > > > > > > > > > Poul-Henning Kamp wrote: > > > > In message > > <9a458dba-3875-43b2-8383-5ca2f86be...@leapsecond.com>, "Tom > > > Van > > > > Baak > > > > (lab)" writes: > > > > > > > >>Could be on the electrical side of the adapter, not the optical > > > >>side. It's not impossible to get 60 ns of phase or trigger error > > > >>with RF connectors. > > > > > > > > I don't buy that explanation. > > > > > > > > It's very hard to get 60 ns *consistent* phase or trigger error, > > > > with any kind of connector, almost no matter how you go about it. > > > > > > > > 20m of extra fiber sounds *much* more plausible. > > > > > > > > Inventing an excuse about a loose connector to cover up the mistake > > > > sounds even more plausible. > > > > > > > > You really don't want to defend your phd dissertation, being known > > > > as the idiot who made a fool of both CERN and SanGrasso in one go. > > > > > > > > -- > > > > Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 > > > > p...@freebsd.org | TCP/IP since RFC 956 > > > > FreeBSD committer | BSD since 4.3-tahoe > > > > Never attribute to malice what can adequately be explained by > > > > incompetence. > > > > > > > > _______________________________________________ > > > > 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. > _______________________________________________ > 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.