What is Story of John Harrison’s Clocks?
Longitude is a measurement of how far east or west you are from Greenwich, London, England, where the prime meridian is a specially defined imaginary north-south line that runs between Greenwich’s geographic poles. Longitude is measured in degrees in the east and west of the prime meridian. But do you know what is John Harrison’s […]
What is Story of John Harrison’s Clocks? Read More »
