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

[Peter Reilley]

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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