Read an interesting book called “ Longitude “. There was an English clock maker who finally made a clock accurate enough to locate your exact longitude. He also crafted gears for a sodden clock in a tower in the 1600’s that still works and the gears were made of wood. All the gears were hand cut. The book a great read!
Should read wooden gears
“Read an interesting book called “ Longitude “.”
There was a documentary about him.
Shadow clocks were used to find longitude in both the East and West thousands of years ago, but the knowledge was lost (like most things known and in common use in the Classical Christian Era by the hundred years war (628-723AD) by the Varsity muslim armies led by Mohammad and his successors, who destroyed everything that was not in the koran - even to creating the desert conditions in today’s north Africa using vast goat herds to eat the vegetation).