Archived posting to the Leica Users Group, 2000/09/16
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]In a message dated 9/16/00 9:13:14 AM Eastern Daylight Time, barney@ncep.noaa.gov writes: << Harrison's struggle to make a chronometer wasn't to make one which always had the correct time on the dial, it was to make one whose error rate was unaffected by the humidity, salt, temprature changes, and constant aceleration and deceleration caused be going over waves. >> Absolutely right. As I said in an earlier post, any watch with that degree of accuracy can be regulated so as to keep perfect time, with a bit of trial and error. BTW, I saw a very well made recent film depicting the incredible history of the development of the marine chronometer. It is unforgettable. The name is "Longitude". Joe Sobel