[time-nuts] Cs tube pics

Poul-Henning Kamp phk at phk.freebsd.dk
Wed Nov 2 06:02:53 EDT 2016

In message <20161102104103.0c58d35a72b7b36253b3d6b2 at kinali.ch>, Attila Kinali writes:

>I still would like to try to build my own atomic clock at some point,
>even if it would be a quite costly, and a many years project. 

If you like lasers, build an ion trap.

If you only like lasers a little bit, build an optically pumped standard.

If you *really* like lasers, build a fountain.

If you are more chemically inclined, there are a ton of gasses you
can work with, methane, amonia, CO2 etc.

The one thing nobody has done or even tried yet, (as far as I know),
is optically excite a solid crystal.

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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