You seem to be trying to rewrite history because it contradicts your attempts to rewrite science.
James Cook - Navigation and science
To create accurate maps, latitude and longitude must be accurately determined. Navigators had been able to work out latitude accurately for centuries by measuring the angle of the sun or a star above the horizon with an instrument such as a backstaff or quadrant. Longitude was more difficult to measure accurately because it requires precise knowledge of the time difference between points on the surface of the earth. The Earth turns a full 360 degrees relative to the sun each day. Thus longitude corresponds to time: 15 degrees every hour, or 1 degree every 4 minutes.
Cook gathered accurate longitude measurements during his first voyage by his navigational skills, the help of astronomer Charles Green, and by using the newly published Nautical Almanac tables, via the lunar distance method—measuring the angular distance from the moon to either the sun during daytime or one of eight bright stars during night-time to determine the time at the Royal Observatory, Greenwich, and comparing that to his local time determined via the altitude of the sun, moon, or stars. On his second voyage, Cook used the K1 chronometer made by Larcum Kendall, which was the shape of a large pocket watch, 5 inches (13 cm) in diameter. It was a copy of the H4 clock made by John Harrison, which proved to be the first to keep accurate time at sea when used on the ship Deptford's journey to Jamaica in 1761–62.
Cook succeeded in circumnavigating the world on his first voyage without losing a single man to scurvy, an unusual accomplishment at the time. |
Sure he did.
That's why these Captains couldn't duplicate that wondrous feat...
http://www.atlanteanconspiracy.com/2015/06/south-pole-does-not-exist.html
During Captain James Clark Ross’s voyages around the Antarctic circumference, he often wrote in his journal perplexed at how they routinely found themselves out of accordance with their charts, stating that they found themselves an average of 12-16 miles outside their reckoning every day, some days as much as 29 miles. Lieutenant Charles Wilkes commanded a United States Navy exploration expedition to the Antarctic from August 18th, 1838 to June 10th, 1842, almost four years spent “exploring and surveying the Southern ocean.” In his journals Lieutenant Wilkes also mentioned being consistently east of his reckoning, sometimes over 20 miles in less than 18 hours.
“The commanders of these various expeditions were, of course, with their education and belief in the earth's rotundity, unable to conceive of any other cause for the differences between log and chronometer results than the existence of currents. But one simple fact is entirely fatal to such an explanation, viz., that when the route taken is east or west the same results are experienced. The water of the southern region cannot be running in two opposite directions at the same time; and hence, although various local and variable currents have been noticed, they cannot be shown to be the cause of the discrepancies so generally observed in high southern latitudes between time and log results. The conclusion is one of necessity, forced upon us by the sum of the evidence collected that the degrees of longitude in any given southern latitude are larger than the degrees in any latitude nearer to the northern center; thus proving the already more than sufficiently demonstrated fact that the earth is a plane, having a northern center, in relation to which degrees of latitude are concentric, and from which degrees of longitude are diverging lines, continually increasing in their distance from each other as they are prolonged towards the great glacial southern circumference.” -Dr. Samuel Rowbotham, “Zetetic Astronomy: Earth Not a Globe!” (261)
“February 11th, 1822, at noon, in latitude 65.53. S. our chronometers gave 44 miles more westing than the log in three days. On 22nd of April (1822), in latitude 54.16. S. our longitude by chronometers was 46.49, and by D.R. (dead reckoning) 47° 11´: On 2nd May (1822), at noon, in latitude 53.46. S., our longitude by chronometers was 59° 27´, and by D.R. 61° 6´. October 14th, in latitude 58.6, longitude by chronometers 62° 46´, by account 65° 24´. In latitude 59.7. S., longitude by chronometers was 63° 28´, by account 66° 42´. In latitude 61.49. S., longitude by chronometers was 61° 53´, by account 66° 38´.” -Captain James Weddell, “Voyages Towards the South Pole”