Nautical Clocks as a Tool
Also known as a marine chronometer, a pricise instrument of time keeping, needed in navigation at sea. The first truly accurate chonometer was invented by John Harrison around 1760. John had made the development of the chronometer his lifes work, and was awarded the longitude prize offered by the British government for his chronometer. Although very expensive at the time , further development made them affordable to most everyone. The chonometer along with the sextant and compass were the main tools of early navigation. Read it all..