On Thu, Jun 30, 2011 at 19:58, Andy Lipscomb <AndyLipscomb@decosimo.com> wrote:
>>The latter is more complicated, given that the orbit and rotational speed of the ball in question weren't set up with
>>reference to the energy level difference between the two hyperfine levels of the ground state of the cesium-133 atom,
>>and that both change over time.
>*both*? Surely, sir, you jest.
>I have a Cs atom calibrated by BIPM, preserved in a bottle of snake oil, which it breaks my heart to sell, but I have
>an old mother ...
Both the orbit and the rotational speed, I think he might mean...
Aah. That makes sense.
I thought the reference was to a change in the basic constants (that the ground state was changing).
--
Sanjeev Gupta
+65 98551208 http://www.linkedin.com/in/ghane