[LEAPSECS] is leap smear legal in Germany?

[Tom Van Baak]

Steve, et al.

Some good history resources:

"Special Topic 50 years of time dissemination with DCF77"
https://www.ptb.de/cms/fileadmin/internet/fachabteilungen/abteilung_4/4.4_zeit_und_frequenz/pdf/2011_PTBMitt_50a_DCF77_engl.pdf

"Time - the SI Base Unit Second"
https://www.ptb.de/cms/fileadmin/internet/fachabteilungen/abteilung_4/4.4_zeit_und_frequenz/pdf/2012_Bauch_PTBM_125a_en.pdf

The above is of special interest to me (being both a pendulum and atomic clock experimenter) is the mention of A. Scheibe and U. Adelsberger who used multiple quartz clocks to demonstrate that it was the earth, not pendulum clocks, not quartz clocks that was unstable.

"A. Scheibe und U. Adelsberger; Physiker und Uhrenbauer aus Deutschland"
http://chronos-ev.de/vortrag/quarz5.pdf

"Some aspects of precision time measurements, controlled by means of
 piezo-electric-vibrators, as deployed in Germany prior to 1950"
http://www.cdvandt.org/PTR%20quartz-clock.pdf

The above mentions "The first statistical proof of the deviations of the daily earth rotation".

"Special Issue; The System of Units"
https://www.ptb.de/cms/fileadmin/internet/publikationen/ptb_mitteilungen/mitt2012/Heft1/PTB-Mitteilungen_2012_Heft_1_en.pdf

"50 Years of the Atomic Definition of the Second"
https://oar.ptb.de/files/download/59ef10144c918497222d9bb7

"Fifty years of atomic time-keeping: 1955 to 2005"
DOI: 10.1088/0026-1394/42/3/E01

"The 50th Anniversary of the Atomic Second"
DOI: 10.1109/TUFFC.2018.2823591

More (possible dead) links here: https://www.febo.com/pipermail/time-nuts/2005-July/019010.html

/tvb

----- Original Message ----- 
From: "Steve Allen" <sla at ucolick.org>
To: "Leap Second Discussion List" <leapsecs at leapsecond.com>
Sent: Saturday, February 02, 2019 8:27 AM
Subject: [LEAPSECS] is leap smear legal in Germany?


> The story about the German time broadcasts of DCF77 is in Bulletin
> Horaire.  The story about the German decision that the old rubber
> second UTC form of coordination was not legal after CGPM adopted
> the cesium second is in the proceedings of the CCDS, and it is
> also indicated in several popular articles written by H.M. Smith.
>
...