Log in

No account? Create an account

Previous Entry | Next Entry

9 December 1938: birth of Waris Hussein, director of An Unearthly Child (1963) and Marco Polo (1964).

9 December 1967: broadcast of fifth episode of The Ice Warriors. Clent prepares to use the ioniser; the Ice Warriors prepare to use their sonic cannon.

9 December 1978: broadcast of third episode of The Androids of Tara. The Doctor tries to rescue Romana, but it's her android double; the real Romana escapes and is recaptured.


( 2 comments — Leave a comment )
Dec. 9th, 2010 01:35 pm (UTC)
Turret Clocks
You wrote your MPhil paper on Richard of Wallingford's clock. In it you report "The change from timekeeping by the 'canonical hours' (based on the classical system of dividing each of day and night into twelve equal parts) to the 'equinoctial hours' (24 equal divisions from noon to noon or midnight to midnight) is probably attributable to the introduction of the mechanical clock. [34] Clepsydræ were filled to different levels depending on the time of year, as changes in the length of day and night would affect the time of the next canonical hour of prayer. It is much more difficult to regulate a mechanical clock in this way; for a large tower clock it is virtually impossible. This does not seem to have caused terrible upheaval to anybody; indeed, as early as 1306 the citizens and Bishop of Salisbury agreed that the end of the morning occurred when the cathedral clock struck one. [35]

I am doing some work (in conjunction with a leading medieval horologist and the best tower clock maker in England) on the Salisbury clock (testing etc) specifically and foliot regulated clocks in general (used extensively in Japan until 1872) becuase they are actually easily adjusted for canonical hours. We are also trying to date the Salisbury clock - currently considered to be about 1386. Can you let me know what the reference might be for you interesting quote that there was a clock in 1306 that struck one? That would be a wonderful document to find and a great help to our group.

Malcolm Bell
Dec. 9th, 2010 02:44 pm (UTC)
Re: Turret Clocks
This comment is completely off topic for the subject of this post. My email address is easy to locate, including on the web page you quote. Please have the courtesy to contact me in the way I have indicated that I wish to be approached on your topic.
( 2 comments — Leave a comment )

Latest Month

May 2019


Page Summary

Powered by LiveJournal.com
Designed by yoksel