Re: [time-nuts] Interesting Graphical Clock

2006-09-30 Thread Rob Kimberley
Tried it on both Internet Explorer and Firefox. Get lots of coloured circles but no clock. Rob K -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of tom Sent: 29 September 2006 21:20 To: Discussion of precise time and frequency measurement Subject: Re:

Re: [time-nuts] Interesting Graphical Clock

2006-09-30 Thread Rex
On Sat, 30 Sep 2006 07:46:30 +0100, Rob Kimberley [EMAIL PROTECTED] wrote: Tried it on both Internet Explorer and Firefox. Get lots of coloured circles but no clock. Rob K Look very closly in the lower right corner. I see some time info. I don't get it much either. Cool though.

Re: [time-nuts] Interesting Graphical Clock

2006-09-30 Thread Rob Kimberley
Not quite what I was expecting! Try the attached, which I found and modified for my own use a few years back. Works OK in Internet Explorer, but not in Firefox - need to check settings. Rob -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rex Sent: 30

Re: [time-nuts] Danjon Astrolabe meridian transit timing errors

2006-09-30 Thread Dr Bruce Griffiths
Tom Van Baak wrote: Accuracy still won't be much better than1% of the solar diameter or about 1 second of time nowhere near the o.1 sec or better hoped for. Bruce Bruce, Can you show us how to derive the accuracy number? I would have guessed that with fractional degree Al-El

Re: [time-nuts] Danjon Astrolabe meridian transit timing errors

2006-09-30 Thread Bill Hawkins
OK, there are serious sources of error in making a one-time solar transit measurement. What I propose is a differential method, a favorite of instrument makers to reduce errors. This is possible because the equation of time makes a correction of only one percent or so. A steady platform with a

Re: [time-nuts] Danjon Astrolabe meridian transit timing errors

2006-09-30 Thread Dr Bruce Griffiths
Bill Hawkins wrote: OK, there are serious sources of error in making a one-time solar transit measurement. What I propose is a differential method, a favorite of instrument makers to reduce errors. This is possible because the equation of time makes a correction of only one percent or so.

Re: [time-nuts] Interesting Graphical Clock

2006-09-30 Thread Jack Hudler
12 rows 30 columns... -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rob Kimberley Sent: Saturday, September 30, 2006 2:50 AM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Interesting Graphical Clock Not quite what