[email protected] said:
> A bit OT, but back in the day there was what amounted to an X-prize for a
> real accurate chronometer for navigation.

> Make that way back in the day. http://en.m.wikipedia.org/wiki/John_Harrison 

There is a good book out on that topic:
  Longitude by Dava Sobel
  There is also a fancy version with lots of very good pictures.
  I'll have to go find my copy so I can look at them again.



-- 
These are my opinions.  I hate spam.



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