So you put a sensor on the neck of the hourglass, and rotate it whenever the
sand stops falling. You'd have to adjust the sand to make up for the rotation
time, and to further calibrate it...
-Dave
-- Original message --
From: Bruce Griffiths [EMAIL PROTECTED]
[EMAIL PROTECTED] wrote:
So you put a sensor on the neck of the hourglass, and rotate it whenever the
sand stops falling. You'd have to adjust the sand to make up for the
rotation time, and to further calibrate it...
-Dave
-
That would certainly be an interesting experiment.
Should be
On Fri, 1 Feb 2008 [EMAIL PROTECTED] wrote:
Hi, I dont know about other counties but the oad shedding is certainly still
dont this way in the UK, BUT the incremental frequency adjectments are
corrected for the mean daily frequency to be correvt at 06:00 in the
morning so that all the
the caseit is probably enshrined in law in the UK. Also Our
nominal voltage is 240v not the 230v decreed by the EU fortunately we
According to the Electricity Supply (Amendment) (No. 2) Regulations
1994 (Statutory Instrument 1994 No. 3021) at
Fun! What piece of equipment is that Isotemp OCXO (page 28) used in?
Scott, it's from a Trak 8812 GPS Station Clock (an early GPSDO).
I must say the drip clock was very nice.
Re the mains frequency, I believe it changes with the load on the grid.
Do you have a record of this?
Sylvain,
Tom,
for your archive of tuning fork oscillators pictures, look at my Bryans
Aeroquipment (later a Negretti Zambra division) 50 Hz fork at
http://xoomer.alice.it/iovane
and click on fork.htm -
This appeared to be quite stable.
Antonio
___
time-nuts
Whether or not the rate of atomic clocks may be affected by a solar eclipse is
a controversial matter.
NATURE magazine published the article Chronometry: Effect of the 1999 solar
eclipse on atomic clocks,
see:
http://www.nature.com/nature/journal/v402/n6763/abs/402749a0.html
but the full text
