[time-nuts] ***SPAM*** Time and navigation

[Hal Murray]

(Time sink warning.  I haven't followed everything.  What I have looks good.)

http://stardate.org/radio/program/time-and-navigation

http://airandspace.si.edu/exhibitions/gal213/timeandnavigation/
http://timeandnavigation.si.edu/

If you want to know where you are, you need a reliable clock. It might seem 
suprising, but knowing the accurate time is essential for determining 
position.


What Makes a Sea Chronometer So Precise?
http://tinyurl.com/cgflygu
http://timeandnavigation.si.edu/multimedia-asset/what-makes-a-sea-chronometer-
so-precise



-- 
These are my opinions.  I hate spam.