an ancient time measuring device SUNDIAL at jatntar mantar
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Jantar Mantar Jaipur is a stone sundial that was built to collect astronomical data. The structure uses the position of the sun and the direction of the shadows to tell time in the ancient days. It has been designed skilfully to also predicts the movement and position of other celestial bodies in space.
How is the sundial at Jantar Mantar used for measuring time?
The samrat yantra, for instance, which is a sundial, can be used to tell the time to an accuracy of about two seconds in Jaipur local time. The GiantSundial, known as the Samrat Yantra (The Supreme Instrument) is one of the world's largest sundials, standing 27 metres tall.
The Jantar Mantar is a collection of nineteen architectural astronomical instruments built by the Kachwaha Rajput king Sawai Jai Singh II, the founder of Jaipur, Rajasthan. The monument was completed in 1734. It features the world's largest stone sundial, and is a UNESCO World Heritage site. It is located near City Palace and Hawa Mahal. The instruments allow the observation of astronomical positions with the naked eye.The observatory is an example of the Ptolemaic positional astronomy which was shared by many civilizations.
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