Dear Jim,
Thanks for the reference. I took a copy out of our library the other day.
Amongst the many other things which were utterly unknown to me were 18th century
clocks which incorporated Equation of Time 'kidneys' so that they could read
sundial time! Is the Dialist's Companion the only contemporary equivalent?
best wishes,
Peter
Quoting "James E. Morrison" <[EMAIL PROTECTED]>:
> The best reference on geared astronomical machines, including monumental
> clocks such the Prague clock is:
>
> King, Henry C., "Geared to the Stars", University of Toronto Press (1978).
>
> (The late professor King also wrote "The History of the Telescope".)
>
> This book has a fairly detailed description of the Prague gearing, and the
> trains for many other astronomical machines.
>
> Best regards,
>
> Jim
>
>
>
> James E. Morrison
> [EMAIL PROTECTED]
> Astrolabe web site at astrolabes.org
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>
>
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