Greenwich Observatory

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Ancient Observatory is located in Greenwich Park.

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Here is placed the largest in the Kingdom of refractive telescope.

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Here you can see a huge collection of astronomical instruments and an ancient clock.

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Here you can stand up to "the meridian of Greenwich, find themselves with one foot in the east,

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and another - in the west, and strike their hours daily at 13:00, when the incident" a ball of time.

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"Every day on the roof of Greenwich Observatory lowered the red ball, which indicates the exact time.

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Observatory was established by the Kingdom of King Charles II June 22, 1675.

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It was built to determine longitude, the data which was reported lost at sea by seamen.

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It was long thought that to determine longitude, you can use the stars and the moon.

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In March 1675, Charles II chose his royal astronomer John Flemstida . 28-year-old Flemstid received instructions from the king:

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"With the highest scrutiny and diligence to begin the reconciliation tables movements of celestial bodies in order to accurately determine longitude for navigation of ships.

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In 1676 Flemstid began observations

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But the sailors were able to use the data only in 1767.

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Thanks to these achievements, from XVIII to XIX century, Britain became the world originator of accurate maps.

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Up until the XIX century, all countries have their own system of measuring longitude.

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In France, as the first meridian of longitude was used ,located at the Paris Astronomical Observatory,

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Italy used the meridian v Neapole , Sweden - Stockholm meridian, and Spain - the meridian of Ferro.

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Gleb Surguchev and Egor Chemerev 5-A Goodbye