On 7/10/2011 4:10 PM, Hal Murray wrote:
omni...@gmail.com said:
Then there is this little number...
http://forums.watchnet.com/index.php?t=treegoto=415170rid=0
From their web page:
The power reserve is 52 hours, and the watch is actually very accurate
at about plus or minus 4 seconds a
On 7/10/2011 6:33 AM, Raj wrote:
To me when someone tells me a time of day the first thing I visualize is
the clock hands and not numbers. I suspect the present gen visualize
numbers. They must have trouble with 60 minutes in the hour.. a quarter
past six and such..
I'm 48 years old and prefer
On 7/10/2011 5:04 AM, Javier Herrero wrote:
My car has an interior look similar to this:
http://upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Jaguar_XKR_Convertible_interior.jpg/800px-Jaguar_XKR_Convertible_interior.jpg
Time ago, I pick a young engineer (quite digitally oriented, may I
On 7/9/2011 10:18 PM, Raj wrote:
I dont wear a watch since 25 years or more. Plenty of clocks around
and now will cell phone and other personal devices all have clocks.
Watch it. Those clocks on the cell phones are consistently slow compared
to a WWVB watch. The time clocks where I
On 5/11/2011 9:24 PM, James Fournier wrote:
http://www.smartertechnology.com/c/a/Technology-For-Change/Smarter-Atomic-Clock-on-a-Chip-Debuts/
NIST (aka bureau of standards) invented an atomic clock movement that is the size of a
grain of rice. That's almost good enough to fit in a
Cezary Rozluski wrote:
Well – it is nice solution presented, but I would like ask you what
would be from time-nuts perspective simple (the simplest ?) solution
to drive such 50/60 Hz clocks without to much overweighed stuff (and
of course without modifying the clock itself addig e.g step motor
Robert LaJeunesse wrote:
Poor man's solution: Use an Arduino to read the Thunderbolt 1PPS and lock a 50Hz
(or 60Hz) square wave to the 1PPS. Any resulting jitter can likely be kept in
the tens of microsecond range, easily filtered out by the clock mechanics.
Filter the square wave a bit and
swingbyte wrote:
First New Year at home ( 20 week old baby ) fortunately the neighbours
have let off a few fireworks.
Happy New Decade, mate! (and thanks for that quirk in Strine, too!) In
America, we don't let off fireworks, but instead set them off or
light them off. (possibly
Thomas A Frank wrote:
I await the day when someone opines as to the number of angels that can
dance on the head of a GPS antenna.
Oh dear, now I have this vision in my head of a bunch of angels impaled upon the antennas
of a GPS satellite, much like how some of the folks who get involved
Cook Mike wrote:
Le 24/12/2010 18:00, Michael Poulos a écrit :
We all enjoy good accurate time keeping. :) What is your favorite
watch? My watch (so far) is a Casio WaveCeptor digital watch that
gets the WWVB signal and calibrates itself
Not sure I have a favorite. I can't find any that do
Javier Herrero wrote:
It seems that we're all trying to find the most obstuse way to obtain
60Hz from 10MHz since the division is not integer... why not simply
multiply the 10MHz input signal by 3 and feed the resulting 30MHz
signal to any suitable divider by 50 chain? the result will be
paul swed wrote:
WHAT chip are you using that has the nice divide by 10 outputs please?
I have been wiring 74ls XXXs for years what a pain. Tired of the soldering.
Thanks
Paul
The chip was one I got on eBay from a different seller than the Ru
movement. The chip number is a C8051T602.It's
Chris Albertson wrote:
What you are doing is dithering. That is the Leap Count. There is a better
way that gives you the exact solution. If you think about it, what is the
computer doing between counts? nothing really. Put that time to use.
Why not measure the the 1Khz period. Or
Recently I bought a Efratom Ru frequency standard from eBay and a
frequency divider chip that makes 1MHZ,100KHZ,25KHZ,10KHZ,100HZ and a
1HZ output. Today I thought of a way to make a nice 60HZ so you can use
a mains-powered clock for the display (using amplifier and transformer
wired
Richard H McCorkle wrote:
Time-Nuts,
New members to the Time-Nuts list may wonder if the Time-Nut disease
has infected them just by joining the list. A clear indication that
someone has been infected with the Time-Nut disease is they own a
reference that provides accurate time to better than
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