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RE: (TV) The 20 Longest Live Versions Of The Song 'Marquee Moon'



Yes, excellent work Leo, and very entertaining. However, as we all know,
your trusty stopwatch is far more accurate than any caesium (UK spelling?)
clock. Great fun.



-----Original Message-----
From: tv-owner@obbard.com [mailto:tv-owner@obbard.com] On Behalf Of Keith
Allison
Sent: 11 February 2013 10:53
To: tv@obbard.com
Subject: (TV) The 20 Longest Live Versions Of The Song 'Marquee Moon'

On 09/02/2013 06:06, Leo Casey wrote:
> Technical Note 1: A Cesium Atomic Clock Was Used To Measure the Lengths of
> Versions of 'M M'
>
>   
>
> A 'cesium atomic clock' is a device that uses as a reference the exact
> frequency of the microwave spectral line emitted by atoms of the metallic
> element cesium, in particular its isotope of atomic weight 133 (Cs-133).
The
> integral of frequency is time, so this frequency, 9,192,631,770 hertz (Hz
=
> cycles/second), provides the fundamental unit of time, i.e., 1 second,
which
> may thus be measured by cesium clocks.

Leo, I would expect no less...!

A fine, fine piece of detective work/obsessive behaviour. Congratulations!

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