Skip to main content

Jantar Mantar: Scintific Acumen of India

Jantar Mantar is very popular among tourists and the people of Delhi. The structure is another great masterpiece of Indian architecture which shows the scientific acumen of ancient India. Jantar Manter is situated at Parliament Street, very close to Connaught Place. Jantar Mantar is also called Delhi Observatory. It is maintained by the Jaipur government because it was built by Maharaja Sawai Jai Singh II of Jaipur in 1710 A.D.
It is a remarkable structure which consists of fourteen geometric devices used for measuring time, forecasting weather changes, predicting behaviour of planets and finding extraterrestrial altitude. All these devices are fixed structures and point to a specific direction. The largest device or instrument is the Samrat Jantar which is 90 feet high and its shadow is plotted in such a manner so that is shows the exact time of the day. Any weather change or the onset of monsoons can be ascertained by the Hindu Chhatri, which is a small domed structure.
The whole structure is made of stone and marble with each of then having an engraved astronomical scale. Jantar Mantar finally got the status of a national monument in 1948. It has always attracted architects, historians and scientists from all over the world.


Maharaja Jai Singh was a fanatical astronomer himself who studied various works from Hindu, Muslim and European astronomy. He had the perception that the tables used by the pundits were deceptive and the actual planetary changes and predictions of eclipses would not have been possible through these measuring parameters. So he thought that he would find an improved and efficient means through which exact prediction could be made. It was his own inspiration and foresightedness that gave shape to such an instrument. He built other observatories at Jaipur, Ujjain, Benares and Mathura to have an exact calculation. It took almost seven years before the whole structure was fully operational because he wanted to be fully satisfied with the accuracy of the instruments at Jantar Mantar.




Some of the major instruments at Jantar Mantar are:
  • The Samrat Yantra 'Prince of Dials' (the largest device)
  • The Ram Yantra - two circular buildings
  • The Jai Prakash
  • The Misra Yantra (north-west to the Samrat Yantra)
  • Pillars on the southwest of Mishra Yantra used to measure the shortest and longest days of the year.
The Samrat Yantra measured the accurate time of the day. It also measured the declination of the sun which can be seen by the shadow moving around the structure.


The Jai Prakash shows the sun's position at the time of equinox. There is a hole near the bottom of the structure which witnesses sunshine only once in a year that is on 21 march, called vernal eqinox.


Another important structure called the Ram Yantra, consists of two large buildings with open top. Both these two buildings form a complete device. The device is used to measure the altitude of stars which is equivalent to the latitude and the longitude on the earth.


To the north-west of the Prakash Yantra, there is a structure or instrument called Mishra Yantra. It consists of five instruments. Pillars on the southwest of Mishra Yantra are used to measure the shortest day (21 December) and the longest day (21 June) of the year.


It is no denying the fact that the structure does represent the scientific heritage of India, though not being used in the modern scientific research. Having said that, we must give accreditation to the Jantar Mantar for its scientific acumen which could have reaped more fruits had there been appropriate motivation and resource given for research and development.


Comments

Popular posts from this blog

The Battle of Longewala

After drifting for approximately thousand kilometers from Alwar, I have reached Longewala. This place romanticizes me allot. The battle of Longewala a legend in itself. It is located at 120 kms from city of Jaisalmer. Only way to reach this place is boulevard and if you are tourist then you have to hire a cab. Longewala is prevalent because of the illustrious skirmish tussled between India and Pakistan in 1971. The clash of Longewala is all about how hundred odd men clogged and overwhelmed approximately 2000 Pakistani legionnaires. This battle was all about the audacity, impetus, chauvinism and drive to prizefight exhibited by those eighty Indian warriors. This scuffle is one of my favorite scuffles, and whenever I come to this place, my mind start envisaging how horde of men repudiated the destiny. During the Indo-Pak war of 1971, A-Coy of 23 Punjab had taken up the defences at Longewala. The A-Coy company commander was Major Kuldeep Singh Chandpuri later on emer...

IS THIS TRUTH OR ANOTHER COMEDY BY PAKISTAN ARMY????

Kashmir War 1947 - 49 By November 1947 Auchinleck, Supreme Commander based in New Delhi, being convinced that Indian Cabinet was seeking to destroy and undo Pakistan by economic and military means, was forced to resign. As the build-up of Indian forces in Jammu and Kashmir continued, Pakistan Army units were being hurriedly organized and equipped without any base for manufacture of ammunition, signal stores, equipment or vehicles. Simultaneously, Pakistan National Guards were raised from ex-servicemen and other volunteers along border areas to provide a second line of defence. By February 1948 Indian build up in Jammu and Kashmir reached five brigades plus, under two full-fledged division Headquarters. Our 101 Brigade, commanded by Brigadier Akbar Khan was rushed into the critical front to forestall and halt the Indian offensive along Uri-Muzaffarabad axis. In April 1948, Commander-in-Chief Pakistan Army appreciating the threats in the north along Muzaffarabad-Kohala...

INDIAN AIR FORCE ADOPTS 'GO GREEN TREND'

Mission Accomplishment Paramount Even as IAF Initiates ODS Alternatives in Weapon Systems The Indian Air Force (IAF) is adopting a multi-pronged strategy to combat ozone depletion including limiting the use of Halon to mission critical uses, tighter control laws and incorporating accountability towards phase-out of ODS (Ozone Depleting Substances) said Air Chief Marshal PV Naik while delivering the inaugural address at the two-day International Workshop on ‘Benefits of ODS Phase-out in Defence Forces’ organized by Centre for Air Power Studies (CAPS), today. Air Chief Marshal P.V. NAIK While highlighting initiatives taken by the IAF, and encouraging alternatives, the Air Chief however, clarified, “Mission accomplishment remains paramount for the Armed Forces. Substituting an ODS would only be done, if it doesn’t impinge on operational effectiveness of the system in question.” For new weapon systems in the pipeline, inclusion of a clause in RFPs for provision of alter...