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Navigation - LoveToKnow 1911 (14119 words) |
 | Among the earliest authors who touched upon navigation was John Werner of Nuremberg, who in 1514, in his notes upon Ptolemy's geography, describes the cross-staff as a very ancient instrument, but says that it was only then beginning to be generally introduced among seamen. |
| In 16 99 Edmund Halley (subsequently astronomer royal), in command of the " Paramour," undertook a voyage to improve the knowledge of longitude and of the variation of the compass. |
| The chief astronomical observations made at sea are those for ascertaining (t) latitude, (2) time and thence longitude, (3) error of compass, and (4) latitude and longitude simultaneously. |
| John Bird: Information from Answers.com (118 words) |
| John Bird, Bishop of Chester from 1542 to 1554 |
| John Bird (New York politician), a U.S. Representative from New York |
| John Taylor Bird (1829-1911), a U.S. Representative from New Jersey |
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