Re: [time-nuts] Pulsars, clocks, and time nuts (Jim Palfreyman)

2018-04-15 Thread djl
Nice, Jim!!! On 2018-04-13 01:54, Tom Van Baak wrote: Amazing news... 1.2.3. 1) Many of you know that pulsars are weird astronomical sources of periodic signals. Some are so accurate that they rival atomic clocks for stability! True, but I don't have a 100 foot antenna at home so I'll take

Re: [time-nuts] Pulsars, clocks, and time nuts (Jim Palfreyman)

2018-04-14 Thread Achim Gratz
Bill Hawkins writes: > It seems that pulsars are rotating stellar objects that have no reason > to change their rotation, except to decay. The whole point of that exercise was to determine which of the theories that predict what the internal structure of a neutron star looks like is more likely

Re: [time-nuts] Pulsars, clocks, and time nuts (Jim Palfreyman)

2018-04-14 Thread Dana Whitlow
kins > > > -Original Message- > From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Dana > Whitlow > Sent: Friday, April 13, 2018 8:39 AM > To: Tom Van Baak; Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Pulsars, clocks,

Re: [time-nuts] Pulsars, clocks, and time nuts (Jim Palfreyman)

2018-04-14 Thread Bill Hawkins
, and time nuts (Jim Palfreyman) Tom's discussion about pulsars brought back some memories... Many pulsars exhibit skipped pulses. And one curiosity that I didn't see mentioned in Tom's discussion is that some pulsars even exhibit behavior reminiscent of the "sawtooth jitter" so evident

Re: [time-nuts] Pulsars, clocks, and time nuts (Jim Palfreyman)

2018-04-13 Thread Dana Whitlow
Tom's discussion about pulsars brought back some memories... Many pulsars exhibit skipped pulses. And one curiosity that I didn't see mentioned in Tom's discussion is that some pulsars even exhibit behavior reminiscent of the "sawtooth jitter" so evident in the PPS outputs of most GPS receivers.

Re: [time-nuts] Pulsars, clocks, and time nuts (Jim Palfreyman)

2018-04-13 Thread Tom Van Baak
Amazing news... 1.2.3. 1) Many of you know that pulsars are weird astronomical sources of periodic signals. Some are so accurate that they rival atomic clocks for stability! True, but I don't have a 100 foot antenna at home so I'll take their word for it. Plus, you have to account for a myriad