Since when is the Anarchist Cookbook censored??? I have an original copy that
I'm saving for a sale about 30 years from now. ($$$ I hope) It's really a
rather simple publication with too much obvious information and questionable
recipes, or so I've been told by people who should know.
Dave
I thought the ball dropped at noon. Perhaps you were there in the summer,
and they had advanced 1 hour for summertime (daylight savings).
Rob K
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of WB6BNQ
Sent: 05 November 2010 12:11 AM
To:
When did clocks get good enough to notice the analemma?
li...@rtty.us said:
My guess would be the 1600's. They certainly had everything they would need
before 1620.
What happened in 1620 to indicate that people could measure the analemma?
One way to discover the analemma is to have a good
Hi
They were doing accurate enough measurement of other astronomical phenomena in
the late 1500's to have a framework to work against. By the early 1600's the
data had been published and was pretty well accepted. You could have figured it
out much earlier, but you would not have missed it past
The variation of solar time was obvious from the time from star
observations.
Harrison used to line up a scratch on his window with a star
disappearing behind a
distant roof top to get consistent time intervals when he was
adjusting the
temperature compensation of his clocks and observing
Another existing sample of a time ball station close to home (for me)
is here in Lyttelton near Christchurch, NZ (quake city)
http://www.teara.govt.nz/en/timekeeping/2/3
It too suffered some building damage in the recent seismic event but
will no doubt be restored in due course.
Worth a look
I also have an original that I found at a flea market for $2 about 5 years
ago. CNN recently, on their web site, had a list of 10 censored books, and
this was one of them. I am sure that only means that it is not readily
available. Heck, even Uncle Tom's Cabin was on the list. Regards - Mike
Mike
Other Timeballs that I know are at USNO (Washington DC) and Real
Observatorio de la Armada (ROA, San Fernando, Cadiz, Spain).
Regards,
Jean-Louis
- Original Message -
From: Dave Brown tract...@ihug.co.nz
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent:
Hal Murray wrote:
When did clocks get good enough to notice the analemma?
li...@rtty.us said:
My guess would be the 1600's. They certainly had everything they would need
before 1620.
What happened in 1620 to indicate that people could measure the analemma?
One way to discover the
On 11/05/2010 09:28 AM, Achim Vollhardt wrote:
Any idea on what would be a preferred (stable) device for a 10 MHz phase
detector? I know that many use the 4046 (which has amongst others an XOR
intetgrated) but what are the exact pros and cons of the different
approaches compared to a (example)
I remember the ball dropping at Greenwich at noon GMT, but that's
because it was summer, and 1 PM BST. Makes you wonder how they
interpolated the hour after the noon transit. Chronometers must
have been pretty good by then, or there would have been no
point to generating a time signal.
The US
Hi
Consider that the Harrison Chronometer had accuracy specs of 2 minutes
over a months long voyage. His later marine clocks got to seconds / month
levels. Stationary clocks of the same era were doing sub-second/month type
accuracies in a good environment.
Bob
-Original Message-
From:
I have this bridge for sale...
Don
Jim Palfreyman
http://www.marketwatch.com/story/frequency-electronics-awarded-contract-for-chip-scale-atomic-clock-2010-11-04?reflink=MW_news_stmp
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Achim,
The 74LV4046 from Texas Instruments is far superior to any of the earlier
variants.
It can accept much wider range of both amplitude frequency to yield clean,
fast
and low jitter output.
Pete Rawson
On Nov 5, 2010, at 2:28 AM, Achim Vollhardt wrote:
Any idea on what would be a
very good
thanks
On Fri, Nov 5, 2010 at 12:09 AM, J. Forster j...@quik.com wrote:
http://video.pbs.org/video/1579336059/
-John
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Achim,
Don’t re-invent the wheel. Google James Miller 10 MHz GPS. Very similar ckts
are by Talbot and Bozic. The basic idea is to divide the 10 MHz to 10 KHz and
then use a phase detector. All will work well. It comes down to personal
choice. If you’re into complexity the Brooks Shera
Gents,
Wrote: I have this bridge for sale...
Perusing the Symmetricom web site is appears that they have built something
similar and are now offering a evaluation board. Price unknown.
When the Sandia Lab design was featured several years ago IIRC in Popular
Science magazine and the street
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