By PRAGYANSHARMA POLAVARAPU In the great Age of Discovery ,explorers, inventors, discoverers,philosopher took a daring scientific view and wanted to understand many unknown and frightening things of nature like travelling to ends of the great seas and oceans. Till then the sailing ships moved from one port to next known port very carefully . They did not venture into the great unknown oceans—probably due to fear that entire oceans will tumble into unknown abyss from the end of flat table earth! But in Age of Discovery a great truth appeared to have dawned on many senior experienced weather beaten sailors that oceans are not so frightening and that the earth is round and that if one sailed straight in forward direction he most probably may return to his home port after at least two or three years. They half believed and half doubted the words of natural philosophers( scientists and university scholars) that earth may be a huge round s...