Will Kimber <[email protected]> wrote: > > The thing with TIME is that its measurement is a abstract concept. Most > other "standards" have a physical representation.
The metre is derived from the second and the speed of light using interferometry. The kg is derived from the metre and the second and the planck constant using a watt balance. A lot of metrology is based on precise frequency standards. Tony. -- f.anthony.n.finch <[email protected]> http://dotat.at/ Forties: Cyclonic 3 to 5, increasing 6 or 7 in northeast. Moderate or rough, becoming slight. Fog patches, thundery rain later. Moderate, occasionally very poor. _______________________________________________ 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.
