Category Archives: Sundials

This sundial at UNESCO World Heritage site, Jantar Mantar observatory in Jaipur, is the largest and most accurate (to within 2 seconds) in the world.. The observatory, built in the first half of the 18th century, has 19 main astronomical instruments or groups of instruments. All are fascinating. Ce cadran solaire à l’observatoire Jantar Montar à Jaipur, site …

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