From: "Poul-Henning Kamp" <[EMAIL PROTECTED]> Subject: Re: [time-nuts] ARRL FMT results Date: Thu, 04 Jan 2007 12:05:54 +0000 Message-ID: <[EMAIL PROTECTED]>
> In message <[EMAIL PROTECTED]>, "M. Warner Losh" writes > : > >I have a silly question about these measurements... > > > >Since the signal is being transmitted from a fixed point. Wouldn't > >people west of the transmitter measure a different (lower?) frequency > >than those east of the transmitter due to the rotation of the earth? > >Or are those effect well below the margin of error that people have > >reported measuring? > > > You're a couple of hundred years behind on physics Warner :-) > > Speed of light is constant, so as long as transmitter and receiver > does not move relative to each other, the frequency stays the same. > > But there will be a correction for their relative height in the > gravity field (as shown by Toms mountain excursion). However, if the signal "bounces" on an "object" moving towards or from the receiver there will be a doppler effect. This is used in radar for instance. Cheers, Magnus _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
