Arvind Bhatnagar
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Arvind Bhatnagar
Arvind Bhatnagar (19 November 1936 – 18 May 2006) was an Indian astronomer who made significant contributions to solar astronomy and founded several planetaria across India. He was the founder-director of the Udaipur Solar Observatory The Udaipur Solar Observatory (USO) is in Udaipur, Rajasthan in India on an island in the Fateh Sagar Lake. The sky conditions at Udaipur are quite favourable for solar observations. Since the observatory is situated amidst a large mass of wat ..., and the founder director of Nehru Planetarium of Bombay.Bulletin of the Astronomical Society of IndiaVolume 34, Number 2, June 2006 Obituary Prof. Arvind Bhatnagar was known internationally for his significant contributions to Solar Astronomy. He was the founder-director of the Udaipur Solar Observatory. He also took immense interest in popularization of astronomy and helped establishing several planetaria across India. Arvind Bhatnagar was born in Beawar, Rajasthan on 19 November 1936. After c ...
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Beawar
Beawar () is a city in Ajmer district of Rajasthan, India. Beawar was the financial capital of Merwara state of Rajputana. As of 2011, the population of Beawar is 342,935. It is located 70 kilometres from Ajmer, the district headquarters and southwest of the state capital Jaipur, amidst Aravali hills. The city used to be a major center for trade, especially in raw cotton, and used to have cotton presses and the Krishna cotton mills. Currently, major industries include mineral-based units, machine-based units, machine tools and accessories, pre-stressed concrete pipes, plastic products, textiles, wooden furniture and asbestos cement pipes. Beawar is the largest producer of cement in northern India and home to Shree Cement. It is situated in a mineral-rich region having reserves of feldspar, quartz, asbestos, soapstone, magnesite, calcite, limestone, mica, emerald, granite, and masonry stone. Reserves of barytes, fluorite, wollastonite and vermiculite have also been found. Ne ...
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Rajasthan
Rajasthan (; lit. 'Land of Kings') is a state in northern India. It covers or 10.4 per cent of India's total geographical area. It is the largest Indian state by area and the seventh largest by population. It is on India's northwestern side, where it comprises most of the wide and inhospitable Thar Desert (also known as the Great Indian Desert) and shares a border with the Pakistani provinces of Punjab to the northwest and Sindh to the west, along the Sutlej- Indus River valley. It is bordered by five other Indian states: Punjab to the north; Haryana and Uttar Pradesh to the northeast; Madhya Pradesh to the southeast; and Gujarat to the southwest. Its geographical location is 23.3 to 30.12 North latitude and 69.30 to 78.17 East longitude, with the Tropic of Cancer passing through its southernmost tip. Its major features include the ruins of the Indus Valley civilisation at Kalibangan and Balathal, the Dilwara Temples, a Jain pilgrimage site at Rajasthan's only hill stat ...
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Udaipur Solar Observatory
The Udaipur Solar Observatory (USO) is in Udaipur, Rajasthan in India on an island in the Fateh Sagar Lake. The sky conditions at Udaipur are quite favourable for solar observations. Since the observatory is situated amidst a large mass of water, air turbulence which occurs due to ground heating by sun's rays is decreased. This improves the image quality and accuracy (average between 1-2 arc seconds). History The observatory was built in 1976 by Dr. Arvind Bhatnagar following the model of the Solar Observatory at Big Bear lake in Southern California. Later, he was joined by Dr. Ashok Ambastha in 1983 and subsequently by many others at different stages who have continued further contributing to the growth of this observatory. Telescopes Utilizing a variety of telescopes, USO is known for its solar observations, which include high-resolution solar chromospheric, magnetic field, velocity, and spectral observations, for studies pertaining to solar flares, mass ejections, and ...
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Vainu Bappu
Manali Kallat Vainu Bappu (10 August 1927 – 19 August 1982) was an Indian astronomer and president of the International Astronomical Union. Bappu helped to establish several astronomical institutions in India, including the Vainu Bappu Observatory which is named after him, and he also contributed to the establishment of the modern Indian Institute of Astrophysics. In 1957, he discovered the Wilson–Bappu effect jointly with American astronomer Olin Chaddock Wilson. On 2 July 1949, when Bappu was taking pictures of the night sky, he spotted a bright moving object which he had rightfully understood to be a comet. When he turned to his professor, Bart Bok, and colleague Gordon Newkirk, they confirmed the discovery. They calculated the orbit of the comet which revealed that the comet would reappear only after 60,000 years. The International Astronomical Union officially named the comet as the Bappu-Bok-Newkirk comet (C/1949N1). Bappu also received the Donohoe Comet Medal of ...
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Planetarium
A planetarium ( planetariums or ''planetaria'') is a theatre built primarily for presenting educational and entertaining shows about astronomy and the night sky, or for training in celestial navigation. A dominant feature of most planetariums is the large dome-shaped projection screen onto which scenes of stars, planets, and other celestial objects can be made to appear and move realistically to simulate their motion. The projection can be created in various ways, such as a star ball, slide projector, video, fulldome projector systems, and lasers. Typical systems can be set to simulate the sky at any point in time, past or present, and often to depict the night sky as it would appear from any point of latitude on Earth. Planetaria range in size from the 37 meter dome in St. Petersburg, Russia (called “Planetarium No 1”) to three-meter inflatable portable domes where attendees sit on the floor. The largest planetarium in the Western Hemisphere is the Jennifer Chalsty Plan ...
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Nehru Planetarium
Nehru Planetariums are the five planetariums in India, named after India's first Prime Minister, Jawaharlal Nehru. These are located in Mumbai, New Delhi, Pune and Bangalore, plus there is a Jawahar Planetarium in Prayagraj, where Nehru was born. The Nehru Planetarium in New Delhi is situated on the grounds of Teen Murti Bhavan, officially known as 'Nehru Memorial Museum and Library', earlier the official residence of India's first Prime Minister, Jawaharlal Nehru and now a museum in his memory. In 1964, the Jawaharlal Nehru Memorial Fund was set up to promote his ideas and it undertook to build the Nehru Planetarium with its aim being the promotion of astronomy education. This planetarium, like its namesake in Mumbai, was also inaugurated by Smt. Indira Gandhi on 6 February 1984. One of the major attractions of this place is the Soyuz T-10 which carried India's first cosmonaut Rakesh Sharma to space, along with his space suit and mission journal. The Sky Theatre shown at Jawa ...
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Nainital
Nainital ( Kumaoni: ''Naintāl''; ) is a city and headquarters of Nainital district of Kumaon division, Uttarakhand, India. It is the judicial capital of Uttarakhand, the High Court of the state being located there and is the headquarters of an eponymous district. It also houses the Governor of Uttarakhand, who resides in the Raj Bhavan. Nainital was the summer capital of the United Provinces. Nainital is located in the Kumaon foothills of the Jagbeer Himalayas at a distance of from the state capital Dehradun and from New Delhi, the capital of India. Situated at an altitude of above sea level, the city is set in a valley containing an eye-shaped lake, approximately two miles in circumference, and surrounded by mountains, of which the highest are Naina Peak () on the north, Deopatha () on the west, and Ayarpatha () on the south. From the tops of the higher peaks, "magnificent views can be obtained of the vast plain to the south, or of the mass of tangled ridges lying no ...
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1936 Births
Events January–February * January 20 – George V of the United Kingdom and the British Dominions and Emperor of India, dies at his Sandringham Estate. The Prince of Wales succeeds to the throne of the United Kingdom as King Edward VIII. * January 28 – Britain's King George V state funeral takes place in London and Windsor. He is buried at St George's Chapel, Windsor Castle * February 4 – Radium E (bismuth-210) becomes the first radioactive element to be made synthetically. * February 6 – The 1936 Winter Olympics, IV Olympic Winter Games open in Garmisch-Partenkirchen, Germany. * February 10–February 19, 19 – Second Italo-Ethiopian War: Battle of Amba Aradam – Italian forces gain a decisive tactical victory, effectively neutralizing the army of the Ethiopian Empire. * February 16 – 1936 Spanish general election: The left-wing Popular Front (Spain), Popular Front coalition takes a majority. * February 26 – February 26 Inci ...
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2006 Deaths
File:2006 Events Collage V1.png, From top left, clockwise: The 2006 Winter Olympics open in Turin; Twitter is founded and launched by Jack Dorsey; The Nintendo Wii is released; Montenegro votes to declare independence from Serbia; The 2006 FIFA World Cup in Germany is won by Italy; Gol Transportes Aéreos Flight 1907 crashes in the Amazon rainforest after a mid-air collision with an Embraer Legacy 600 business jet; The 2006 Yogyakarta earthquake kills over 5,700 people; The IAU votes on the definition of "planet", which demotes Pluto and other Kuiper belt objects and redefines them as "dwarf planets"., 300x300px, thumb rect 0 0 200 200 2006 Winter Olympics rect 200 0 400 200 Twitter rect 400 0 600 200 Nintendo Wii rect 0 200 300 400 IAU definition of planet rect 300 200 600 400 2006 Montenegrin independence referendum rect 0 400 200 600 2006 Yogyakarta earthquake rect 200 400 400 600 Gol Transportes Aéreos Flight 1907 rect 400 400 600 600 2006 FIFA World Cup 2006 was ...
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People From Ajmer District
A person ( : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of property, or legal responsibility. The defining features of personhood and, consequently, what makes a person count as a person, differ widely among cultures and contexts. In addition to the question of personhood, of what makes a being count as a person to begin with, there are further questions about personal identity and self: both about what makes any particular person that particular person instead of another, and about what makes a person at one time the same person as they were or will be at another time despite any intervening changes. The plural form "people" is often used to refer to an entire nation or ethnic group (as in "a people"), and this was the original meaning of the word; it subsequently acquired its use as a plural form of per ...
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