Those in Australia might want to check out the traveling "ships, clocks, and stars" exhibit at the Australian National Maritime Museum in Sydney through Oct 30. I saw this earlier this year when it was in Mystic Connecticut and found it very interesting. It is also appropriate for non Time Nuts. It presents a good overview of the quest for longitude at sea and features beautiful working replicas of Harrison's clocks.
On Wed, Jul 6, 2016, 7:46 PM Morris Odell <vilgo...@bigpond.net.au> wrote: > This is a terrific thread. I have been to Greenwich too and also some of > the > clock exhibits in London. There's a beautiful pendulum master and slave > clock set up in the British Museum, and there's an original huge Caesium > (British spelling!) frequency standard in the Kensington Science Museum. > The last time I was there in 2013 there was also a special feature > exhibition about Alan Turing and the Bletchley code breakers. I did pass > through Bletchley station on the train about 20 years ago when I was in the > UK but regrettably didn't have the time to stop there. I can recommend the > climb up the hill at Greenwich to anyone - it's definitely worth the > effort. > They didn't allow photography of the Harrison clocks but I did manage to > sneak one or two before the minder got to me :-) > > I'd love to have a genuine electro-optical speaking clock. There's one in > the Australian Telecom museum not far from where I live. There's also a > terrific display of a complete electromechanical telephone exchange > including a speaking clock in the telecommunications museum in Stockholm > but > as I don't speak Swedish I couldn't understand what it was saying. I've > just finished making a speaking clock using more modern technology, it uses > a 30 year old speech synthesizer chip and sounds just like Stephen Hawking. > > Morris > Melbourne, Australia > ------------------------------------------------------------------------- > Date: Wed, 6 Jul 2016 10:42:19 +1000 > From: Jim Palfreyman <jim77...@gmail.com> > To: Discussion of precise time and frequency measurement > <time-nuts@febo.com> > Subject: Re: [time-nuts] Visiting Greenwich > > Speaking of "speaking clocks" - here's two photos of the ones that used to > be used in Australia: > > https://en.wikipedia.org/wiki/Speaking_clock#Australia > > The top photo with rotating optical disks is a gorgeous piece of machinery. > > The one below - I have one, and I keep it running. > > :-) > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.