Oh. I see! It was already a joke that I didn't get. Thanks. Chuck Harris wrote: > According to Donald DeCarle's Watch and Clock Encyclopedia: > > Clepsydra- Water Clock. There are various types of water > clocks, from the plain vessel with an orifice at its base through > which water percolates and, by the lowering of the surface > of the water the passage of time is denoted, to the water clock > with a mechanical device to cause a hand to rotate. The mechanical > clepsydra shown overleaf is simple in operation. The cylindrical > vessel is slowly filled with water and a float with a stem and rack > engages the wheel to which the hour hand is attached. As the vessel > fills so the float rises and the hour hand is made to rotate. When > the vessel is full it is emtied (sic) and the process starts over > again. While this type of clock is spectacular and one would like > to think it is of ancient origin, it has to be recorded that no > ancient example has been handed down to us. On the other hand, > Egyptian water clocks, as illustrated, have been found and date from > about 1400B.C. Primitive water clocks of Saxon times have been > found in the British Isles. They are of the "sinking bowl" type, > where a bronze bowl with a hole in the bottom was placed upon the > surface of the water, water percolated through the hole and > eventually it sank which denoted a period of time. It is > interesting to note that this system is still used in Algeria for > timing periods of the supply of water for irrigation purposes. > > -Chuck Harris > > Rex wrote: > >> Mark Sims wrote: >> >>> And my clepsydra is now indicating "Leak Second Pending"... >>> ---------------------------------------- >>> >>> >>> >>> >> Did you make a typo... or is clepsydra a real word? >> >> >> :-) (just joking) >> >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > >
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