[time-nuts] GENIUS by Stephen Hawking (PBS TV), with 5071A cesium clocks

Clint Jay cjaysharp at gmail.com
Fri May 20 16:07:39 UTC 2016


To  my simple mind they'd be out but by a constant amount because they're
still locked to one master clock.   The discrepancy would be from the "time
of flight"  between the top and bottom of the mountain.

Or I may have completely misunderstood.
On 20 May 2016 17:01, "Peter Reilley" <preilley_454 at comcast.net> wrote:

> I have a question.   I, of small brain, am wondering: if the time
> difference between the
> top of the mountain and the bottom of the mountain is 20 nS over 24 hours
> could you
> repeat the same experiment using GPS?    The time difference of 20 nS is
> measurable
> using GPS.
>
> The GPS clock must run faster on the mountain top than the GPS at the
> mountain
> base and yet the two remain synchronized to the satellite reference.
>  Therefore
> the GPS 1 PPS signal (measurable to a few nS) must be wrong in in one of
> the local
> frame references.
>
> My brain hurts.
>
> Pete.
>
>
> On 5/20/2016 10:16 AM, Bob Camp wrote:
>
>> Hi
>>
>> Ok, so *that* link got me to the episode. Very impressive stuff. Well
>> done !!!
>>
>> Bob
>>
>>
>> On May 20, 2016, at 2:04 AM, Tom Van Baak <tvb at LeapSecond.com> wrote:
>>>
>>> For those of you who missed the live TV broadcast, I'm told PBS has a
>>> live stream:
>>> http://www.pbs.org/video/2365757267/
>>>
>>> The cesium clock parts are in the last 15 minutes of the show.
>>> I also added more photos/plots to:
>>> http://leapsecond.com/great2016a/photos.htm
>>>
>>> /tvb
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