[time-nuts] A Time-Nut's Worst Nightmare
Jim Lux
jimlux at earthlink.net
Sat May 11 20:50:31 UTC 2013
On 5/11/13 9:29 AM, Ed Palmer wrote:
>
> On 5/11/2013 5:32 AM, Magnus Danielson wrote:
>> On 11/05/13 06:48, Jim Lux wrote:
>>> On 5/10/13 6:52 PM, Ed Palmer wrote:
>>>> Part of me thinks it's cute, part of me wants to kill it. :-)
>>>>
>>>> https://www.tindie.com/products/akafugu/vetinari-clock
>>
>> Looking forward to seeing NIST having one of these in their lobby. :)
>
> Of course, they'd reference it to a cesium fountain!
>
Cesium fountain and/or ensemble.. driving a processor implementing a
very high quality random number generator, so that the time is
*precisely* random.
Actually, I've been casually looking at a thing that can generate pulses
with a specified phase noise distribution. It turns out that human
heartbeats, like most all oscillators, have a fairly well defined phase
noise/ADEV characteristic, and not only that, but the shape of that
distribution (as well as some other statistics) are fairly unique to
each person.
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