## Nautical Science in Its Relation to Practical Navigation: Together with a Study of the Tides and Tidal Currents |

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Nautical Science in Its Relation to Practical Navigation, Together with a ... Charles Lane Poor No preview available - 2012 |

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accurate actual Almanac altitude amount apparent astronomical average becomes body calculated called caused centre changes chronometer circle clock coast computed correction crosses curve declination depends determined direction directly distance earth east equal equator error exactly extremely fall feet finding force formula four give given greater greatest Greenwich half heat heavens height high water horizon hour angle increase instant interval Island known latitude length less light longitude low water lunar mean measured meridian method miles minutes moon motion moving Nautical navigator nearly noon noted observation ocean oscillation particle passes path period planet pole portion position practical range reaches reduction refraction result rise rotation ship sidereal sight simple solar star Sumner line surface tables temperature tidal tides tion true varies wave zenith

### Popular passages

Page 71 - The squares of the periods of revolution of any two planets are proportional to the cubes of their mean distances from the sun.

Page 96 - our astronomical observer" at a salary of £100 per annum, his duty being "forthwith to apply himself with the most exact care and diligence to the rectifying the tables of the motions of the heavens and the places of the fixed stars, so as to find out the so much desired longitude of places for the perfecting the art of navigation.