[time-nuts] First "accurate" atomic clock video

Rob Kimberley robkimberley at btinternet.com
Tue May 8 10:52:33 UTC 2012


Mike,

Thanks for posting that. A wonderful film, and a great insight into early Cs
development. 

I was lucky to see one of their Cs fountains a few years ago when attending
an NPL T&F Club meeting. They also gave us a view of the work being done on
optical clocks. 

Louis Essen would have been most impressed.

Rob Kimberley

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Michael Costolo
Sent: 08 May 2012 11:22
To: time-nuts at febo.com
Subject: [time-nuts] First "accurate" atomic clock video

I've always been fascinated with science history.  If you all haven't seen
this already, here is a video from 1955 about the first "accurate" cesium
atomic clock designed by Louis Essen and made in the UK's National Physical
Laboratory.  Interesting that the one made after the prototype was 17 feet
long.

http://www.youtube.com/watch?feature=player_embedded&v=MGoVXLzUDsQ

-Mike-
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