Jantar Mantar (Jaipur)
Encyclopedia
The Jantar Mantar is a collection of architectural astronomical instruments, built by Maharaja
Maharaja
Mahārāja is a Sanskrit title for a "great king" or "high king". The female equivalent title Maharani denotes either the wife of a Maharaja or, in states where that was customary, a woman ruling in her own right. The widow of a Maharaja is known as a Rajamata...

 (King) Jai Singh II at his then new capital of Jaipur
Jaipur
Jaipur , also popularly known as the Pink City, is the capital and largest city of the Indian state of Rajasthan. Founded on 18 November 1727 by Maharaja Sawai Jai Singh II, the ruler of Amber, the city today has a population of more than 3.1 million....

 between 1727 and 1734. It is modeled after the one that he had built for him at the Mughal
Mughal Empire
The Mughal Empire ,‎ or Mogul Empire in traditional English usage, was an imperial power from the Indian Subcontinent. The Mughal emperors were descendants of the Timurids...

 capital of Delhi
Delhi
Delhi , officially National Capital Territory of Delhi , is the largest metropolis by area and the second-largest by population in India, next to Mumbai. It is the eighth largest metropolis in the world by population with 16,753,265 inhabitants in the Territory at the 2011 Census...

. He had constructed a total of five such facilities at different locations, including the ones at Delhi and Jaipur. The Jaipur observatory is the largest and best preserved of these. It has been inscribed on the World Heritage List as "an expression of the astronomical skills and cosmological concepts of the court of a scholarly prince at the end of the Mughal period".
Early restoration work was undertaken under the supervision of Major
Major
Major is a rank of commissioned officer, with corresponding ranks existing in almost every military in the world.When used unhyphenated, in conjunction with no other indicator of rank, the term refers to the rank just senior to that of an Army captain and just below the rank of lieutenant colonel. ...

 Arthur Garrett, a keen amateur astronomer, during his appointment as Assistant State Engineer for the Jaipur District.

Name

The name is derived from jantar
Jantar
*jantar - amber in old Polish language*jantar - amber in Croatian language*jantar - amber in Slovenian language*Jantar, Poland - a village in Poland*a series of Polish gliders:**SZD-37 Jantar**SZD-38 Jantar 1**SZD-41 Jantar Standard**SZD-42 Jantar 2/2b...

 ("instrument"), and Mantar ("formula", or in this context "calculation"). Therefore jantar mantar means literally 'calculation instrument'. This observatory has religious significance, since ancient Indian astronomers were also Jyotisa masters.

Description

The observatory consists of fourteen major geometric devices for measuring time, predicting eclipses, tracking stars' location as the earth orbits around the sun, ascertaining the declinations of planets, and determining the celestial altitudes and related ephemerides. Each is a fixed and 'focused' tool. The Samrat Yantra, the largest instrument, is 90 feet (27.4 m) high, its shadow carefully plotted to tell the time of day. Its face is angled at 27 degrees, the latitude of Jaipur. The Hindu chhatri (small cupola) on top is used as a platform for announcing eclipses and the arrival of monsoons.

Built from local stone and marble, each instrument carries an astronomical scale, generally marked on the marble inner lining. Bronze tablets, all extraordinarily accurate, were also employed. Thoroughly restored in 1901, the Jantar Mantar was declared a national monument in 1948.

An excursion through Jai Singh's Jantar is a unique experience of walking through solid geometry and encountering a collective astronomical system designed to probe the heavens.
The instruments are in most cases huge structures. The scale to which they have been built has been alleged to increase their accuracy. However, the penumbra of the sun can be as wide as 30 mm, making the 1mm increments of the Samrat Yantra sundial devoid of any practical significance. Additionally, the masons constructing the instruments had insufficient experience with construction of this scale, and subsidence of the foundations has subsequently misaligned them. The samrat yantra, for instance, which is a sundial
Sundial
A sundial is a device that measures time by the position of the Sun. In common designs such as the horizontal sundial, the sun casts a shadow from its style onto a surface marked with lines indicating the hours of the day. The style is the time-telling edge of the gnomon, often a thin rod or a...

, can be used to tell the time to an accuracy of about two seconds in Jaipur local time
Time zone
A time zone is a region on Earth that has a uniform standard time for legal, commercial, and social purposes. In order for the same clock time to always correspond to the same portion of the day as the Earth rotates , different places on the Earth need to have different clock times...

. The Giant Sundial, known as the Samrat Yantra (The Supreme Instrument) is the world's largest sundial
Sundial
A sundial is a device that measures time by the position of the Sun. In common designs such as the horizontal sundial, the sun casts a shadow from its style onto a surface marked with lines indicating the hours of the day. The style is the time-telling edge of the gnomon, often a thin rod or a...

, standing 27 meters tall. Its shadow moves visibly at 1 mm per second, or roughly a hand's breadth (6 cm) every minute, which can be a profound experience.

Today the observatory is a popular tourist attraction. However, local astronomers still use it to predict the weather for farmers, although their authority is becoming increasingly questionable. Students of astronomy and Vedic astrology are required to take some of their lessons at the observatory, and it can be said that the observatory is the single most representative work of Vedic thought that still survives, apart from the texts. Many of the smaller instruments display remarkable innovation in architectural design and its relation to function, for instance - the Ram Yantra.

Filming location

It was used as a filming location for the 2006 film The Fall as a maze.

Storm Thorgerson
Storm Thorgerson
Storm Thorgerson is an English graphic designer, known for his work for rock bands such as Pink Floyd, Led Zeppelin, Black Sabbath, 10cc, Dream Theater, The Mars Volta, Muse, The Cranberries, and Biffy Clyro.-Biography:...

 photographed the sundial for the cover of Shpongle
Shpongle
Shpongle is an English psychedelic downtempo/psybient music project formed in 1996. The group includes Simon Posford and Raja Ram . Their musical style combines eastern ethnic instruments and vocals with contemporary western synthesizer-based psychedelic music...

's DVD, Live at the Roundhouse 2008.

Further reading


External links

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