[time-nuts] Determination of the placement of the first pps

J. Forster jfor at quikus.com
Mon Jan 23 13:40:14 EST 2012


Yes. The 1421 MHz is about the closest, practical, universal standard
available to us at the moment. But is not absolute. What if you were in a
different gravitational field? (The Pound gravitational red-shift
experiment)

-John

=================


> On 1/23/12 9:45 AM, J. Forster wrote:
>> The fundamental problem is our system of units is not defined
>> rationally.
>> What is universal about a meter or a second or a kilogram? Nothing!
>>
>> If you were suddenly transported elsewhere in the universe bareassed,
>> could you replicate the standards we use?
>>
>> If you lived on another planet, perhaps Klingon, would the second make
>> any
>> sense?
>>
>> This problem was faced maybe 50 years ago by the SETI folks. How do you
>> know what frequency an ET might be transmitting on? 1.000000000 GHz? And
>> if their unit of time is different, what then?
>>
>>
>
> isn't that why they relate things to Hydrogen frequency, etc. (viz gold
> plates on Voyager)
>
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