?Yes, perhaps 0.5 seconds is it. Last Sunday it was 0.5 seconds fast and Frank did something with the coins to change its rate. This Sunday it is 1 second fast, discounting the leap second. So, the clock gained an additional 0.5 seconds in the week. Did I get it right this time? More/fewer coins needed? ;-)
-- Richard Langley ----------------------------------------------------------------------------- | Richard B. Langley E-mail: l...@unb.ca | | Geodetic Research Laboratory Web: http://gge.unb.ca<http://gge.unb.ca/> | | Dept. of Geodesy and Geomatics Engineering Phone: +1 506 453-5142 | | University of New Brunswick Fax: +1 506 453-4943 | | Fredericton, N.B., Canada E3B 5A3 | | Fredericton? Where's that? See: http://www.fredericton.ca/<https://unbmail.unb.ca/owa/redir.aspx?C=tVxi5OaRXE2jUmSNTu0wE7USusV6L9AIh-TKOqhq1DE--EjKeq-SUal8Myg-FGJn53Gm890SFIc.&URL=http%3a%2f%2fwww.fredericton.ca%2f> | ----------------------------------------------------------------------------- ________________________________ From: Patrick Vyvyan <patrickvyv...@gmail.com> Sent: Sunday, January 1, 2017 9:54 AM To: Richard Langley Subject: Re: Fw: Leap Second Quiz Question 0.5 seconds for me! It's not exactly the fault of your clock's mechanism that due to the foibles of the IERS, the rules of the game have been changed. Every time a government decides to apply or remove DST, for example, I doubt you would say the clock had gained or lost 60 minutes? Patrick Vyvyan Presidente CorporaciĆ³n Cultural de Putaendo [http://banners.wunderground.com/cgi-bin/banner/ban/wxBanner?bannertype=wxstnsticker_both&weatherstationcount=IVALPARA7] On 1 January 2017 at 10:17, Richard Langley <l...@unb.ca<mailto:l...@unb.ca>> wrote: 1.5 seconds? The clock is two seconds fast this morning due to its natural rate and the leap second. By the way, did anyone catch the seven pips live on BBC Radio 4 last night? Using the BBC's "listen again" feature, none of the other BBC radio stations carried the pips at midnight; they all (or mostly all) used Big Ben. And the listen again feature for Radio 4 just before midnight is a repeat of an earlier program when they announce the time as 5 p.m.! -- Richard Langley ----------------------------------------------------------------------------- | Richard B. Langley E-mail: l...@unb.ca<mailto:l...@unb.ca> | | Geodetic Research Laboratory Web: http://gge.unb.ca | | Dept. of Geodesy and Geomatics Engineering Phone: +1 506 453-5142<tel:%2B1%20506%20453-5142> | | University of New Brunswick Fax: +1 506 453-4943<tel:%2B1%20506%20453-4943> | | Fredericton, N.B., Canada E3B 5A3 | | Fredericton? Where's that? See: http://www.fredericton.ca/ | ----------------------------------------------------------------------------- ________________________________________ From: sundial <sundial-boun...@uni-koeln.de<mailto:sundial-boun...@uni-koeln.de>> on behalf of Frank King <f...@cl.cam.ac.uk<mailto:f...@cl.cam.ac.uk>> Sent: Sunday, January 1, 2017 8:30 AM To: sundial@uni-koeln.de<mailto:sundial@uni-koeln.de> Subject: Leap Second Quiz Question Dear All, I hope you all enjoyed the extra second in bed this morning and that your alarm clock didn't go off one second early. Here is an easy question to start off the New Year... Every Sunday at 08:00 I check the first stroke of the hour-bell of the University Clock against a radio-controlled UTC clock. If it is slow I add coins to the tray on the pendulum. If it is fast I remove coins. My formula for the required adjustment includes a figure for: Last Week's Gain [LWG] Here are my recent observations: 25 December clock 0.5 seconds fast 1 January clock 2.0 seconds fast Is the appropriate figure for LWG: a) 0.5 seconds b) 1.5 seconds c) 2.5 seconds Frank Frank H. King Keeper of the University Clock Cambridge, U.K. --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
--------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial