How many Jantar Mantar are there in India: Locate their cities in the map of India.
Name the ruler who constructed the famous Jantar Mantar of Jaipur. Collect information about it and comment on the application of scientific knowledge in that period.
Answers
The Jantar Mantar monument of Jaipur, Rajasthan, was built by Rajput King Sawai Jai Singh in the early 18th century. It is located near Citi Palace and Hawa Mahal in Jaipur. This monument presents masonry, stone and brass instruments that were built using astronomy and instrument design principles of ancient Hindu Sanskrit texts. It was designed for the observation of astronomical positions with the naked eye.
The Jantar Mantar has various architectural and astrological instruments that have caught the attention of historians, astronomers and architects all over the world. The astronomical observatory at Jantar Mantar houses fourteen major geometric devices for tracking constellations, measuring time, and also observing the orbits around the sun.
Answer:
The Jantar Mantar is a collection of 19 astronomical instruments built by the Rajput king Sawai Jai Singh II, the founder of Jaipur, Rajasthan. The monument was completed in 1734.[1][2] It features the world's largest stone sundial, and is a UNESCO World Heritage site.[1][3] It is located near City Palace and Hawa Mahal.[4] The instruments allow the observation of astronomical positions with the naked eye.[1] The observatory is an example of the Ptolemaic positional astronomy which was shared by many civilizations.[1][2]
The Jantar Mantar, Jaipur
UNESCO World Heritage Site
Jantar Mantar at Jaipur.jpg
Location
Jaipur, Rajasthan, India
Criteria
Cultural: (iii), (iv)
Reference
1338
Inscription
2010 (34th session)
Area
1.8652 ha (4.609 acres)
Buffer zone
14.6664 ha (36.241 acres)
Coordinates
26°55′29″N 75°49′28″E
The monument features instruments operating in each of the three main classical celestial coordinate systems: the horizon-zenith local system, the equatorial system, and the ecliptic system.[2] The Kanmala Yantraprakara is one that works in two systems and allows transformation of the coordinates directly from one system to the other.[5]
The monument was damaged in the 19th century. Early restoration work was undertaken under the supervision of Major Arthur Garrett, a keen amateur astronomer, during his appointment as Assistant State Engineer for the Jaipur District
Explanation:
Purpose
Jai Singh noticed that the Zij, which was used for determining the position of celestial objects, did not match the positions calculated on the table. He constructed five new observatories in different cities in order to create a more accurate Zij. The astronomical tables Jai Singh created, known as the Zij-i Muhammad Shahi, were continuously used in India for a century. (However, the table had little significance outside of India.) Also, it was used to measure time.