NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: GPS as a time authority
From: Brad Morris
Date: 2009 Sep 15, 23:52 -0400
From: Brad Morris
Date: 2009 Sep 15, 23:52 -0400
Hi Douglass I must say that I rather enjoyed my visits to the Greenwich Museum and the National Maritime Museum down the hill. Harrison's chronometers were fascinating to watch. I drove my wife absolutely bonkers. Contrary to Mr. Betts' opinion, I spent the better part of 2 hours staring at the mechanisms, on each of my two visits to that room. Would have spent more time there but my wife mutinied. I found the NMM and the displays of navigational equipment, like the repeating reflecting circles on the second floor, to be wonderful. I would easily do that again. I suppose I have pity on the poor curators. Catering to the whims of the vast majority of un-educated tourists, whilst disappointing the thirst of the knowledgable. Best Regards Brad ________________________________________ From: navlist@fer3.com [navlist@fer3.com] On Behalf Of douglas.denny@btopenworld.com [douglas.denny@btopenworld.com] Sent: Tuesday, September 15, 2009 3:17 PM To: NavList@fer3.com Subject: [NavList 9752] Re: GPS as a time authority Exactly correct. I was informed of that too. It most likely was the same particular Caesium standard - now owned by the Greenwhich Observatory Museum, and was on display a few years ago in the 'Time Room' along with Harrson's clocks. Teddington had (if I remember correctly) a couple of those Hewelet Packard "portable" atomic clocks. I am pleased (and give myself a pat on the back) that it was myself that suggested that particular Caesium Clock should be given to the Greeenwich Observatory museum, as the Teddington time department was going to throw them out, as they were obsolete because of the GPS comparison method. The Greewich museum also had on display an example of PIM - Precision Indication of the Meridian on it's properly designed tripod. ---------- Sad to say, the Greenwich Museum is now but a shadow of it's former glory. More a kiddies play room now, with only a very few artefacts on display and practically no explanations of any substance about either time measurement or navigation. The main atttraction still being of course the Harrison chronometers - the only reason for going into the museum now in my opinion, - Oh, I should also include - experiencing the Octagon room where Neville Maskelyne worked in the old original part of the Observatory. The 'Time room' in the basement which you had to go down the helical staircase to get to, was literally stuffed full of chronometers and clocks of all descriptions, including displays of all of different stages of development of the chronometer showing the different methods of compensation. A wonderful magical place. Mostly all working too, ticking away merrily they seemed to be alive. A wonderful experience which I well remember the first time I went into that room. Now that's all gone and there is nothing other than Harrison's clocks and one or perhaps two chronometers only upstairs. A terrible shame. And a cheek to call it a museum of time and navigation as it has been robbed of everything that made it so. And why? .... I complained to Johnathan Betts the curator and was told that is "museum policy" (!?) They have done surveys (!!??) and found the maximum time anyone stays in the room as the walk through is one or two minutes, and on that basis they believe it is: "appropriate to only display a very few items so they have chance to absorb something". How daft is that? .... you couldn't make it up. I don't suppose it occurs to them that only having a few items to see means people will only spend a few seconds glancing around, then leave the room because there is nothing to see!! The country has gone mad. The Greenwich Museum and Science Museum in Kensington (for they are just as bad with the same daft "museum policy") should give everything they have stored in the vast warehouses in Wiltshire to the Smithsonian Museum in the USA where it would be revered and put on display, instead of gathering dust in some dark corner of a government warehouse here. Britain has never appreciated it's wonderful heritage and rich history in the same way as the Americans do. Douglas Denny. Chichester. England. "Confidentiality and Privilege Notice The information transmitted by this electronic mail (and any attachments) is being sent by or on behalf of Tactronics; it is intended for the exclusive use of the addressee named above and may constitute information that is privileged or confidential or otherwise legally exempt from disclosure. 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