[time-nuts] Time of death-Again

Neville Michie namichie at gmail.com
Thu Oct 28 19:46:07 EDT 2010


Surely astronomical events are rather rubbery.
The distance between the celestial bodies is measured in Light Years,
this must give uncertainties as the exact distances are varying all  
the time
and the solution of the many bodied problem is probably chaotic,  
meaning that it
may not be possible to deduce exactly where anything was at some  
point in the past.
The rate at which time happens depends on the local gravity and that  
varies as
everything moves around.
What we need here is a Grand Unified Time to keep cell phones working
through the universe. How would you administer that to a nanosecond?
I am sure Douglas Adams would have had some humorous situations with
excellent moral messages for us if he were still here.
cheers, Neville Michie


On 29/10/2010, at 5:18 AM, Marshall Eubanks wrote:

>
> On Oct 28, 2010, at 2:05 PM, Max Robinson wrote:
>
>> How about the crab supernova.
>>
>
> Msec pulsars are much more stable - see http://arxiv.org/pdf/ 
> 0911.5534 for some comparisons.
>
> Regards
> Marshall
>
>> Regards.
>>
>> Max.  K 4 O D S.
>>
>> Email: max at maxsmusicplace.com
>>
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>>
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>> ----- Original Message ----- From: "jimlux" <jimlux at earthlink.net>
>> To: "Discussion of precise time and frequency measurement" <time- 
>> nuts at febo.com>
>> Sent: Thursday, October 28, 2010 8:30 AM
>> Subject: Re: [time-nuts] Time of death-Again
>>
>>
>>> Steve Rooke wrote:
>>>> One thing we should bear in mind that our tombstone timestamp  
>>>> should
>>>> have things like the timezone, and calendar in use, references,  
>>>> such
>>>> that future people can determine the exact point in time of our  
>>>> death.
>>>> In fact, basing the timestamp on some true reference point would
>>>> better than about 2000 years after some event happened on earth as
>>>> archaeologists from other words coming to the Earth in the future
>>>> would be left to figure out this arbitrary time event. I would  
>>>> propose
>>>> that we relate the year portion (which is the LSB and most  
>>>> important)
>>>> to some celestial event thereby making it possible to document this
>>>> easily for future life-forms to determine. The whole year/date  
>>>> thing
>>>> really should be made secular as there is no place for religion  
>>>> in the
>>>> governance of society.
>>>>
>>>> Steve
>>>
>>>
>>> Is this not the same problem we all face when specifying an  
>>> absolute time? Is it TAI? GPS? UTC? etc.
>>>
>>> And, then, if you are moving, the local time offsettime  relative  
>>> to some reference might be different at different times.
>>>
>>> I think this is a sort of relativity question, isn't it?  That  
>>> is, you just have to pick some place/time, and reference  
>>> everything else to that. So which astronomical event do you want  
>>> use as your reference (e.g. a T=0 epoch)and is it sufficiently  
>>> well determined that you can figure it out later?  It's all well  
>>> and good, for instance, to use noon on January 1st, 1900 or  
>>> something as your time zero, but that's hardly a universally  
>>> available reference point.
>>>
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