Longitude

Longitude: The true story of a lonely genius who solved the biggest scientific problem at the time was written by Davasobel. This book is related to watch manufacturers that can determine longitude, so it is called "longitude". Longitude decisions are the most advanced scientific problems Galileo and Newton could not solve in the 18th century. The main inspiration behind the invention completed in this book is that many seamen are lost in the ocean because of longitude ignorance.

You may be thinking about the relationship between the two, but since the beauty of longitude is the time to measure longitude, John Harrison's work begins. The problem of finding a measuring system that accurately measures longitude continued until the 18th century when it reached the peak of the discussion. This century, the Economic Committee was established to promote the establishment of accurate longitude, especially at sea. The committee has set a £ 20,000 prize for those who can develop a longitude measure up to half accuracy

Before the progress in the second half of the 20th century navigation relied on the ability to measure latitude and longitude. Latitude can be determined by celestial navigation; longitude measurement requires accurate time knowledge. This demand is the main driving force for the development of precision mechanical watches. John Harrison founded the first high-accuracy navigation station in the mid 18th century. The noon gun in Cape Town still sends a precise signal, allowing the ship to check the timer. For the same purpose, many of the buildings near the main port had big balls (still a few) attached to the tower and mast, letting them fall for a given time. Satellite navigation systems such as the Global Positioning System (GPS) require unprecedented precise time knowledge, but this is provided by equipment on the satellite and the vehicle no longer requires timekeeping equipment

I am reading a document on how to find accurate longitude recently. Mr. Dava Sobel's background is an excellent explanation of the challenges that must be overcome and confronted before John Harrison, a genius clockmaker from the UK countryside, is recognized as a standard tool for tracking time in the sea . The striking feature of this story is its impact on the safety and success of maritime navigation and its power to the British Navy to manage ocean freight and ultimately colonize important parts of the known world .