Tag: social studies

The Indian Astronomical Observatory, located near Leh in Ladakh, India, has one of the world's highest located sites for optical, infrared and gamma-ray telescopes. It is operated by the Indian Institute of Astrophysics, Bangalore.

The first telescope was made by Hans Lippershey in the early 1600s. He was a German-Dutch glassmaker, and he managed to reduce the amount of light in his telescope while focusing it. His model inspired other scientists to work on perfecting the telescope.

The Vainu Bappu Observatory is an astronomical observatory owned and operated by the Indian Institute of Astrophysics. It is located at Kavaloore in the Javadi Hills, near Vaniyambadi in Tirupattur district in the Indian state of Tamil Nadu.

Maharaja Sawai Jai Singh of Jaipur who was also an astronomer built the Jantar Mantar. Jantar Mantar has 19 instruments out of which Samrat Yantra, Jai Prakash Yantra, Ram Yantra, Chakra Yantra, Dakshin Mural Yantra, Digamya Yantra, Disha Yantra, Kanali Yantra are prominent.

• Vikram Sarabhai Space Centre is located at Thiruvananthapuram.
• Satellite Tracking and Ranging Station (STARS) was established and operated by Indian Space Research Organisation (ISRO) in collaboration with Academy of Sciences (AS-USSR) at Kavalur, in Jawadi hills near Vaniyambadi, Tamil Nadu, India.
• National remote sensing centre is located at Hyderabad.
• Satellite control Centre is in Sriharikota in Andhra Pradesh.

The Indian Space Research Organisation  is the space agency of the Government of India and has its headquarters in the city of Bengaluru .

The Indian Space Research Organisation (ISRO) operates through a countrywide network of centres.

1.  Sensors and payloads are developed at the Space Applications Centre in Ahmedabad. 
2. Satellites are designed, developed, assembled, and tested at the U R Rao Satellite Centre (formerly the ISRO Satellite Centre) in Bangalore. 
3. Launch vehicles are developed at the Vikram Sarabhai Space Centre in Thiruvananthapuram. 
4. Launches take place at the Satish Dhawan Space Centre on Sriharikota Island, near Chennai. 
5. The Master Control Facilities for geostationary satellite station keeping are located at Hassan and Bhopal. 
6. Reception and processing facilities for remote-sensing data are at the National Remote Sensing Centre in Hyderabad.

In physics, escape velocity is the minimum speed needed for a free, non-propelled object to escape from the gravitational influence of a massive body. The escape velocity from Earth is about 11.186 km/s (6.951 mi/s; 40,270 km/h; 36,700 ft/s; 25,020 mph; 21,744 km) at the surface.

Mahanagar Telephone Nigam Limited is a state-owned telecommunications service provider and a wholly-owned subsidiary of BSNL headquartered in New Delhi, India. MTNL Provides services in the metro cities of Mumbai and New Delhi in India and in the island nation of Mauritius in Africa.

The company had a monopoly in Mumbai and New Delhi until 1992 when the telecom sector was opened to other service providers. "Transparency makes us different" is the motto of the company. The Government of India currently holds 57% stock in the company with the rest being held by public and institutional investors.