Hi Morris, The idea of the author of "A Brief History of Time" telling the time briefly has a certain appeal. Can you share some construction details? Even a parts list would be useful.
Thanks, Bill Hawkins -----Original Message----- From: Morris Odell Sent: Wednesday, July 06, 2016 5:32 PM 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 _______________________________________________ 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.