Re: [time-nuts] Clock Powers of Ten

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]

Re: [time-nuts] Clock Powers of Ten

[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

Re: [time-nuts] Clock Powers of Ten

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

Re: [time-nuts] Clock Powers of Ten

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,

Re: [time-nuts] Clock Powers of Ten

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

[time-nuts] Clock Powers of Ten

There are good clocks and bad clocks. Most need power, one needs food, another runs all by itself. Take a trip across 15 orders of magnitude of clock performance: http://www.leapsecond.com/ten/ /tvb ___ time-nuts mailing list --

Re: [time-nuts] Clock Powers of Ten

At 03:55 PM 1/31/2008, Tom Van Baak wrote: Take a trip across 15 orders of magnitude of clock performance: http://www.leapsecond.com/ten/ Fun! What piece of equipment is that Isotemp OCXO (page 28) used in? -- newell N5TNL ___ time-nuts

Re: [time-nuts] Clock Powers of Ten

Tom Van Baak wrote: There are good clocks and bad clocks. Most need power, one needs food, another runs all by itself. Take a trip across 15 orders of magnitude of clock performance: http://www.leapsecond.com/ten/ /tvb I must say the drip clock was very nice. Re the mains

Re: [time-nuts] Clock Powers of Ten

There are good clocks and bad clocks. Most need power, one needs food, another runs all by itself. Take a trip across 15 orders of magnitude of clock performance: Excellent stuff Tom! Best Rgds Rob K ___ time-nuts mailing list --

Re: [time-nuts] Clock Powers of Ten

Very cool, Tom! John Tom Van Baak said the following on 01/31/2008 04:55 PM: There are good clocks and bad clocks. Most need power, one needs food, another runs all by itself. Take a trip across 15 orders of magnitude of clock performance: http://www.leapsecond.com/ten/ /tvb

Re: [time-nuts] Clock Powers of Ten

Very nice, it reminded me of a NYT article about a year ago that describes the long zoom as one of the defining aspects of this generation: http://www.nytimes.com/2006/10/08/magazine/08games.html?ei=5090en=d551133c9414ebbdex=131796partner=rssuserlandemc=rsspagewanted=all jeff John

Re: [time-nuts] Clock Powers of Ten

On Jan 31, 2008 5:27 PM, Sylvain RICHARD [EMAIL PROTECTED] wrote: Re the mains frequency, I believe it changes with the load on the grid. Do you have a record of this? I forget the reasoning for frequency variation, but it is load or source related I believe. Part of the reason it A project

Re: [time-nuts] Clock Powers of Ten

michael taylor a écrit : On Jan 31, 2008 5:27 PM, Sylvain RICHARD [1][EMAIL PROTECTED] wrote: Re the mains frequency, I believe it changes with the load on the grid. Do you have a record of this? I forget the reasoning for frequency variation, but it is load or source related I believe. Part

Re: [time-nuts] Clock Powers of Ten

time and frequency measurement time-nuts@febo.com Sent: Friday, February 01, 2008 12:25 AM Subject: Re: [time-nuts] Clock Powers of Ten michael taylor a écrit : On Jan 31, 2008 5:27 PM, Sylvain RICHARD [1][EMAIL PROTECTED] wrote: Re the mains frequency, I believe it changes with the load

Re: [time-nuts] Clock Powers of Ten

From: Sylvain RICHARD [EMAIL PROTECTED] Subject: Re: [time-nuts] Clock Powers of Ten Date: Fri, 01 Feb 2008 01:25:54 +0100 Message-ID: [EMAIL PROTECTED] michael taylor a écrit : On Jan 31, 2008 5:27 PM, Sylvain RICHARD [1][EMAIL PROTECTED] wrote: Re the mains frequency, I believe

Re: [time-nuts] Clock Powers of Ten

Hi Tom: Nice overview. Charles and Ray Eames did: Powers of Ten http://www.imdb.com/title/tt0078106/ Toccata for Toy Trains http://www.imdb.com/title/tt0051091/ and the Eames chair which is still available from Herman Miller:

Re: [time-nuts] Clock Powers of Ten

Brooke Clarke wrote: Hi Tom: Nice overview. I think in your Powers of Ten you showed a timepiece for which I don't remember any data. Since it's shown on the last page does that mean the hour glass has very good specs? How can it have (as a clock)? It isnt a periodic device by