You can see pendulum clocks swing and hear them tick. On the other hand,
quartz, cesium, and GPS references are silent and invisible. It's Rb and
H-masers that have a special glow. Here's one of mine:
http://leapsecond.com/museum/ch175/coil.htm
which also answers the question from Anders Wallin, "Any ideas on what
the spiral is":
http://www.anderswallin.net/2016/01/h-maser-glow/
/tvb
On 12/24/2020 8:02 AM, Magnus Danielson wrote:
Fellow time-nuts,
It is the time of year to wish people a Merry Christmas and God Jul.
However, doing this in time and frequency world is hard, until I recall
that the color of the dissociator light of a hydrogen maser is close
enough, so I therefore present you the Happy H-mas of EFOS-10!
Cheers,
Magnus
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