noel shelley | 18/08/2023 10:39:13 |
2308 forum posts 33 photos | It would not figure in the fine models class but the one that made me think long and hard was shown at I think Olimpia in the 90s ! It was an anniversary of the BHI I seem to think. It was a clock that as the day went on showed the right time, I came back several times to check, but it only had 2 hands on a plain spindle. There was no visible mechanism to move the hands or keep them in step. I have my own ideas as to how it might have been done BUT does anyone remember this item or know how it worked ? Noel |
Bazyle | 18/08/2023 10:55:45 |
![]() 6956 forum posts 229 photos | I remember that and I think there are pictures on the internet and some for sale. Possibly also plans for sale. Two methods used. One is by balance using a watch mechanism in the hand and one using hands painted on a clear plastic disc that is rotated by a mechanism in the encircling frame. |
Peter Cook 6 | 18/08/2023 11:13:10 |
462 forum posts 113 photos | Nice example of the latter form here Robert-Houdin Triple Mystery Clock - Jacques Nève (horloger.net) And a typical example of the former. Edited By Peter Cook 6 on 18/08/2023 11:18:08 |
SillyOldDuffer | 18/08/2023 11:31:22 |
10668 forum posts 2415 photos | Not exactly a clock, but this video of Adam Savage looking at a fake Perpetual Motion machine at the Royal Society is interesting. |
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