...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 <t...@leapsecond.com> 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:
https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.simonandschuster.com%2Fbooks%2FTuxedo-Park%2FJennet-&data=02%7C01%7Cdavid.g.mcgaw%40dartmouth.edu%7C2baf103d9c32419fccc108d55d0d047f%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C636517232850475383&sdata=qFPSaqAEbfKwjfSO9D76XsqMfIm91Kw6eZuKLsmTvqo%3D&reserved=0
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://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FAlfred_Lee_Loomis&data=02%7C01%7Cdavid.g.mcgaw%40dartmouth.edu%7C2baf103d9c32419fccc108d55d0d047f%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C636517232850475383&sdata=%2FkxpYWQyHhOGfAPH6N6enMskObQhtRzC8oK5j0sZLFk%3D&reserved=0
https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FLORAN&data=02%7C01%7Cdavid.g.mcgaw%40dartmouth.edu%7C2baf103d9c32419fccc108d55d0d047f%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C636517232850475383&sdata=ijMVI04uZM0eTrbLuv4mUY%2B083xMfjWbNpZ3MTc7t9c%3D&reserved=0
https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftimeandnavigation.si.edu%2Fnavigating-air%2Fnavigation-&data=02%7C01%7Cdavid.g.mcgaw%40dartmouth.edu%7C2baf103d9c32419fccc108d55d0d047f%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C636517232850475383&sdata=jYgt%2FrAP8cQKLvF9R4nVZG3k6nKUJzbJnJTzOcM5UAM%3D&reserved=0
at-war/new-era-in-time-and-navigation/alfred-loomis
https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ob-ultrasound.net%2Floomis.html&data=02%7C01%7Cdavid.g.mcgaw%40dartmouth.edu%7C2baf103d9c32419fccc108d55d0d047f%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C636517232850475383&sdata=GWqcRU3I3aUBiLOIE5Mw3Ei0YcSjgWIkZbUYIzlR%2FFw%3D&reserved=0
https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fleapsecond.com%2Fpages%2Floomis%2F&data=02%7C01%7Cdavid.g.mcgaw%40dartmouth.edu%7C2baf103d9c32419fccc108d55d0d047f%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C636517232850475383&sdata=ClO8gkx05Vq6qhDr5hkYYiwUO8na8HA1%2FYjNAGWuNZk%3D&reserved=0
And the clever way to do time transfer and compare precision clocks to 1
ms in the 1930's...
https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fleapsecond.com%2Fpend%2Fshortt%2F1931-RAS-Precise-&data=02%7C01%7Cdavid.g.mcgaw%40dartmouth.edu%7C2baf103d9c32419fccc108d55d0d047f%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C636517232850475383&sdata=q9iz56t67V0%2BwCYEVnkAtHxpVPLT3WeJo9Q%2FECXznzU%3D&reserved=0
Measurement-Time-Loomis.pdf
Also the classic "The Evolution of the Quartz Crystal Clock" by Warren
A. Marrison:
https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fieee-uffc.org%2Fabout-us%2Fhistory%2Fuffc-s-history%2Fthe-&data=02%7C01%7Cdavid.g.mcgaw%40dartmouth.edu%7C2baf103d9c32419fccc108d55d0d047f%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C636517232850475383&sdata=%2Fhbhe1nN0EpFHrUC9lbFRX8vdOzsqVFh7K6pkUncVQ0%3D&reserved=0
evolution-of-the-quartz-crystal-clock/
via
https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fieee-uffc.org%2Fabout-us%2Fhistory%2Fuffc-s-history%2F&data=02%7C01%7Cdavid.g.mcgaw%40dartmouth.edu%7C2baf103d9c32419fccc108d55d0d047f%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C636517232850475383&sdata=gkQ3dzxJODXSS2QoxyZ9pCDH%2FvMNByXOxXDkbWelwDE%3D&reserved=0
and original at
https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Farchive.org%2Fdetails%2Fbstj27-3-510&data=02%7C01%7Cdavid.g.mcgaw%40dartmouth.edu%7C2baf103d9c32419fccc108d55d0d047f%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C636517232850475383&sdata=z74H2E33KXInYSJOPdK9YFchrDmzN4AzUBhWwGutgUs%3D&reserved=0
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" <hmur...@megapathdsl.net>
To: <time-nuts@febo.com>
Cc: "Hal Murray" <hmur...@megapathdsl.net>
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.)
https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Famericanexperience%2Ffilms%2Fsecret-tuxedo-park%2F&data=02%7C01%7Cdavid.g.mcgaw%40dartmouth.edu%7C2baf103d9c32419fccc108d55d0d047f%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C636517232850475383&sdata=aUWBUJU2BmB46OmWfj5JShfUyypuRelczNpqqwOA78k%3D&reserved=0
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 -- time-nuts@febo.com
To unsubscribe, go to
https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.febo.com%2Fcgi-bin%2F&data=02%7C01%7Cdavid.g.mcgaw%40dartmouth.edu%7C2baf103d9c32419fccc108d55d0d047f%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C636517232850475383&sdata=LXpXqqvsiIIIkkqyNpkuuEeC1PjAtQCKpO3NT8NFgBc%3D&reserved=0
mailman/listinfo/time-nuts
and follow the instructions there.
_______________________________________________
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.febo.com%2Fcgi-bin%2F&data=02%7C01%7Cdavid.g.mcgaw%40dartmouth.edu%7C2baf103d9c32419fccc108d55d0d047f%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C636517232850475383&sdata=LXpXqqvsiIIIkkqyNpkuuEeC1PjAtQCKpO3NT8NFgBc%3D&reserved=0
mailman/listinfo/time-nuts
and follow the instructions there.
