-------- Brooks Harris writes: > Multidecadal variation of the Earth's inner-core rotation
Thanks a LOT! If I read this right, 1955 was the worst possible time for IAU define the second ? In 1955, purely by accident, the inner core was at the same stage of it's multidecal oscillation (Extended data, fig 7), as when Newcomb made the astronomical observations in the 1890'ies on which IAU based their definition of the second, and so, presumably, all the contemporary LOD observations, moon camera and all that, gave results close to Newcombs. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@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. _______________________________________________ LEAPSECS mailing list LEAPSECS@leapsecond.com https://pairlist6.pair.net/mailman/listinfo/leapsecs