>>...he would wear it on the outside of his wrist instead of the inside, so >>that gravity changed the rate of the tuning fork... Sort of manual turbillon...
On Tue, Jan 16, 2018 at 4:04 PM, Tom Van Baak <[email protected]> wrote: > I can't stress enough how important Loomis was to the history of precise > timekeeping in early radio, telephone, pendulum clock, quartz oscillator era. > And for those of us who still have Loran-C receivers can thank him (Loomis > Radio Navigation -> LRN -> Loran). > > So I highly recommend the 2003 book "Tuxedo Park" by Jennet Conant: > http://www.simonandschuster.com/books/Tuxedo-Park/Jennet-Conant/9780684872889 > > Our kind of guy. In the "Palace of Science" chapter she writes: Loomis would > remain a "time nut" for the rest of his life, according to Luis Alvarez, who > recalled that Loomis always wore "two Accutrons--one on his right wrist and > one on his left wrist." He would check them every day against WWV (the > standard frequency broadcasting station of the National Bureau of Standards), > and if one was gaining a half second on the other, he would wear it on the > outside of his wrist instead of the inside, so that gravity changed the rate > of the tuning fork and the two watches tracked each other, and WWV, "to > within less than a second a day." > > > > Some other Loomis links of interest: > > https://en.wikipedia.org/wiki/Alfred_Lee_Loomis > https://en.wikipedia.org/wiki/LORAN > https://timeandnavigation.si.edu/navigating-air/navigation-at-war/new-era-in-time-and-navigation/alfred-loomis > http://www.ob-ultrasound.net/loomis.html > http://leapsecond.com/pages/loomis/ > > > And the clever way to do time transfer and compare precision clocks to 1 ms > in the 1930's... > > http://leapsecond.com/pend/shortt/1931-RAS-Precise-Measurement-Time-Loomis.pdf > > > Also the classic "The Evolution of the Quartz Crystal Clock" by Warren A. > Marrison: > > https://ieee-uffc.org/about-us/history/uffc-s-history/the-evolution-of-the-quartz-crystal-clock/ > via https://ieee-uffc.org/about-us/history/uffc-s-history/ > and original at https://archive.org/details/bstj27-3-510 > > > If someone knows how to record any time/clock/navigation parts of PBS show > for non-US viewers let me know, off-list. > > /tvb > > > ----- Original Message ----- > From: "Hal Murray" <[email protected]> > To: <[email protected]> > Cc: "Hal Murray" <[email protected]> > Sent: Tuesday, January 16, 2018 1:42 AM > Subject: [time-nuts] PBS, Tue evening, The Secret of Tuxedo Park > > >> (Sorry for the clutter to those of you outside the US.) >> >> http://www.pbs.org/wgbh/americanexperience/films/secret-tuxedo-park/ >> Two of the shorts mentions time. >> >> Many thanks for the Tuxedo Park book suggestion many years ago. >> >> >> -- >> These are my opinions. I hate spam. >> > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
