[time-nuts] BYMLBI (Back Yard Medium LBI)

Wolfgang timenuts at triplespark.net
Sat Mar 19 03:58:25 UTC 2011


On Friday 18 March 2011, Brooke Clarke wrote:
> For a number of decades I've tried to figure out a way to measure the
> period of the Earth's rotation accurate to at least 1 ms.
>
> [...]
> 
> Is it possible to do it using a radio method in my (large) back yard?
>
1 ms / day = 1.2e-8 = 460um position accuracy on the ground. 

If the measurement takes more than a couple of days, continental drift 
may need to be considered. 

- Wolfgang, DL1SKY




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