Attila Kinali <[email protected]> wrote: > Mike Cook <[email protected]> wrote: > > > c. The first commercial cesium clocks were available in 1956, but the > > second did not get redefined until 1967. There is no rush. > > Which caesium beam standards were available in 1956?
The Atomichron, I think: http://ieeemilestones.ethw.org/images/8/8d/Forman_Proc_IEEE_1985.pdf Tony. -- f.anthony.n.finch <[email protected]> http://dotat.at/ Fair Isle: Southwest 5 or 6, becoming variable 4 later. Moderate or rough. Showers, rain later. Good, occasionally poor later. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
