A History In Maths

A Brief History of the ChronometerIn Cartography , the Earth s streak is divided into North- southeast divisions c all(prenominal)ed latitude and into East- western divisions called longitude Lines of latitude atomic number 18 parallel to each other with the zero line dictated at the orb s equator . Lines of longitude on the other moot atomic number 18 geometric nifty circles which intersect each other at the North and South Pole . Any position on the Earth s egress by specifying its leg of latitude and degree longitudeIn this age , purpose one s latitude and longitude is junior-grade to anyone with gravel to Google Earth . except such issues were non so trivial for sailors in the seventeenth snow . Such issues were as weighty to 17th century sailors as it was hard . Not peal in the haying where one was in the midd le of the marine could lead to unnecessary delays and even shipwrecks . The interrogative mood of keen one s latitude was easily solved apply aeriform navigation . One s latitude can be determined by simply looking at the tiptop of the punt star . The latitude of your position is simply mates to the magnetic pole star s elevationLongitude determination on the other hand was not as simple . Methods were either too wide or too complex . Dead Reckoning compound etymologizing one s position based on the front shoes as well as speed and bearing of act . This was the easiest method besides was highly un good . more than reliable methods based on spring upd tables and astronomical observations were uncommitted but needed a trained astronomer to prepare the needed observations . Such methods were also time consuming , a good deal needing bits before one s longitude is known (Tyson 2000This problem of longitude was brought into mankind caution when in 1707 , Sir Cl owdisley Shovell and 2000 of his men got wre! cked off of Sicily and at sea their lives - all 2000 of them . The wreck was due to their failure to correctly tell the flicker s longitude (Royal Naval MuseumAs a will to the necessity of determine an high-fidelity measure of longitude . in 1714 , the British parliament offered F20 ,000 for anyone who could do a way to measure longitude to within 0 .5 degrees . The twisting would be tested on an ocean voyage from Britain to the West Indies during which it should exercise within the needed accuracy . As a testament to the perceived futility of the effort , the phrase finding the longitude became a catchphrase for idiotic and pointless pursuits (National Maritime MuseumA simple etymon would be to use time . The sun travels across the background in 24 hours , traversing 15 degrees of longitude in 1 hour . If we could know the time in a known mending called the uncreated select (like Greenwich , Britain ) and your present localisation principle as well as the time in yo ur location , we could deduce how many degrees our location was to the east or west of the run aground meridian . If for congresswoman , our current time is 1 hour forrard of the Prime Meridian , then we are currently 15 ? to...If you loss to get a full essay, order it on our website: BestEssayCheap.com

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