EEVblog #423 - HP5061A Atomic Clock Cesium Beam Frequency Standard

Channel:

EEVblog

Subscribers:

970,000

Published on February 12, 2013 11:13:45 AM ● Video Link: https://www.youtube.com/watch?v=3yTL06ZU5SU

Category:

Vlog

Duration: 9:38

77,754 views

1,264

A look at one of the original HP 5061A Cesium Beam atomic clock frequency standards used in the "flying clocks" experiment in the 1960's, that showed (not definitely at the time) that time dilation as part of Einstein's relatively theory was correct. The effect was not confirmed until a more precise run in 1971, again with the same clocks.

Forum Topic: http://www.eevblog.com/forum/blog/eevblog-423-hp5061a-atomic-clock-cesium-beam-frequency-standard

EEVblog Main Web Site:
http://www.eevblog.com
EEVblog Amazon Store:
http://astore.amazon.com/eevblogstore-20
Donations:
http://www.eevblog.com/donations/
Projects:
http://www.eevblog.com/projects/
Electronics Info Wiki:
http://www.eevblog.com/wiki/