[time-nuts] "When you google word ..."

[David G. McGaw]

I am not sure why they would be discouraged.  We have known of the 
gravitational red-shift for a while and it is of course part of GPS 
calculations.  The Mossbauer effect, which involves a very narrow 
nuclear resonance, was used to demonstrate it in 1959 over a height of 
22.5 meters (the Pound–Rebka experiment).  It is cool that we now have 
clocks accurate enough to detect changes of the order of meters and 
getting better.

David N1HAC

On 10/29/20 10:32 PM, The Fiber Guru wrote:
> I actually had the privilege of hearing David Allan present his theories in the yearly NIST conference in Boulder.  Interesting fellow.
>
> One thing that was pretty cool is that NIST developed a fountain clock that is so accurate it is influenced by altitude.  They had to raise the clock once to install a new floor beneath and when they raised the clock it impacted the frequency.  Originally discouraged by this it suddenly occurred to someone that they had developed an extremely accurate way to measure height!  Now they just have to miniaturize it and make it affordable (of course this is the bane of laboratory experiments).
>
> I was once Dir of R&D at a fortune 50 electronics firm and love hanging out in labs like NIST.
>
> db
>
>> On Oct 29, 2020, at 7:00 PM, cdelect at juno.com wrote:
>>
>> Also when you google  "alien deviation" you get:
>>
>> About 11,800,000 results (0.50 seconds)
>>
>> Cheers! :>)
>>
>> Corby
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