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Guru Shikhar
Guru Shikhar, a peak in the Arbuda Mountains of Sirohi district in Rajasthan, is the highest point of the Aravalli Range and Rajasthan. It rises to an elevation of . It is 75 km from Sirohi city, the district headquarter and 15 km from Mount Abu and a road from there leads almost to the top of the mountain. It is named ''Guru- Shikhar'' or 'the peak of the guru' after Dattatreya, an incarnation of Vishnu, andof a cave at the summit contains a temple dedicated to him, plus one edicated his mother, Anasuya, wife of sage Atri nearby. Adjacent to the temple is the Mt Abu Observatory operated by the Physical Research Laboratory. This observatory hosts a 1.2m infrared telescope and also several Astronomy Astronomy () is a natural science that studies astronomical object, celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and chronology of the Universe, evolution. Objects of interest ... experiments. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aravalli Range
The Aravalli Range (also spelled ''Aravali'') is a mountain range in Northern-Western India, running approximately in a south-west direction, starting near Delhi, passing through southern Haryana, Rajasthan, and ending in Ahmedabad Gujarat. The highest peak is Guru Shikhar on Mount Abu at . The Aravalli Range is arguably the oldest geological feature on Earth, having its origin in the Proterozoic era. The Aravalli Range is rich in natural resources and serves as check to the growth of the western desert. Etymology Aravalli, a composite Sanskrit word from the roots ''"ara"'' and ''"vali"'', literally means the ''"line of peaks"''. Natural history Geology The Aravalli Range, an eroded stub of ancient mountains, is believed to be the oldest range of fold mountains in India.Roy, A. B. (1990). Evolution of the Precambrian crust of the Aravalli Range. Developments in Precambrian Geology, 8, 327–347. The natural history of the Aravalli Range dates back to times when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vishnu
Vishnu ( ; , ), also known as Narayana and Hari, is one of the principal deities of Hinduism. He is the supreme being within Vaishnavism, one of the major traditions within contemporary Hinduism. Vishnu is known as "The Preserver" within the Trimurti, the triple deity of supreme divinity that includes Brahma and Shiva.Gavin Flood, An Introduction to Hinduism' (1996), p. 17. In Vaishnavism, Vishnu is the supreme being who creates, protects, and transforms the universe. In the Shaktism tradition, the Goddess, or Adi Shakti, is described as the supreme Para Brahman, yet Vishnu is revered along with Shiva and Brahma. Tridevi is stated to be the energy and creative power (Shakti) of each, with Lakshmi being the equal complementary partner of Vishnu. He is one of the five equivalent deities in Panchayatana puja of the Smarta tradition of Hinduism. According to Vaishnavism, the highest form of Ishvara is with qualities (Saguna), and have certain form, but is limitless, transcend ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hill Stations In Rajasthan
A hill is a landform that extends above the surrounding terrain. It often has a distinct summit. Terminology The distinction between a hill and a mountain is unclear and largely subjective, but a hill is universally considered to be not as tall, or as steep as a mountain. Geographers historically regarded mountains as hills greater than above sea level, which formed the basis of the plot of the 1995 film ''The Englishman who Went up a Hill but Came down a Mountain''. In contrast, hillwalkers have tended to regard mountains as peaks above sea level. The ''Oxford English Dictionary'' also suggests a limit of and Whittow states "Some authorities regard eminences above as mountains, those below being referred to as hills." Today, a mountain is usually defined in the UK and Ireland as any summit at least high, while the official UK government's definition of a mountain is a summit of or higher. Some definitions include a topographical prominence requirement, typically or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of Rajasthan
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomy
Astronomy () is a natural science that studies astronomical object, celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and chronology of the Universe, evolution. Objects of interest include planets, natural satellite, moons, stars, nebulae, galaxy, galaxies, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation. More generally, astronomy studies everything that originates beyond atmosphere of Earth, Earth's atmosphere. Cosmology is a branch of astronomy that studies the universe as a whole. Astronomy is one of the oldest natural sciences. The early civilizations in recorded history made methodical observations of the night sky. These include the Babylonian astronomy, Babylonians, Greek astronomy, Greeks, Indian astronomy, Indians, Egyptian astronomy, Egyptians, Chinese astronomy, Chinese, Maya civilization, Maya, and many anc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telescope
A telescope is a device used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. Originally meaning only an optical instrument using lenses, curved mirrors, or a combination of both to observe distant objects, the word ''telescope'' now refers to a wide range of instruments capable of detecting different regions of the electromagnetic spectrum, and in some cases other types of detectors. The first known practical telescopes were refracting telescopes with glass lenses and were invented in the Netherlands at the beginning of the 17th century. They were used for both terrestrial applications and astronomy. The reflecting telescope, which uses mirrors to collect and focus light, was invented within a few decades of the first refracting telescope. In the 20th century, many new types of telescopes were invented, including radio telescopes in the 1930s and infrared telescopes in the 1960s. Etymology The word ''telescope'' was coin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infrared
Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around 1 millimeter (300 GHz) to the nominal red edge of the visible spectrum, around 700 nanometers (430 THz). Longer IR wavelengths (30 μm-100 μm) are sometimes included as part of the terahertz radiation range. Almost all black-body radiation from objects near room temperature is at infrared wavelengths. As a form of electromagnetic radiation, IR propagates energy and momentum, exerts radiation pressure, and has properties corresponding to both those of a wave and of a particle, the photon. It was long known that fires emit invisible heat; in 1681 the pioneering experimenter Edme Mariotte showed that glass, though transparent to sunlight, obstructed radiant heat. In 1800 the astronomer Sir William Herschel discovered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physical Research Laboratory
The Physical Research Laboratory (PRL) is a National Research Institute for space and allied sciences, supported mainly by Department of Space, Government of India. This research laboratory has ongoing research programmes in astronomy and astrophysics, atmospheric sciences and aeronomy, planetary and geosciences, Earth sciences, Solar System studies and theoretical physics. It also manages the Udaipur Solar Observatory and Mount Abu InfraRed Observatory. The PRL is located in Ahmedabad. The Physical Research Laboratory was founded on 11 November 1947 by Dr. Vikram Sarabhai. The laboratory had a modest beginning at his residence, with research on cosmic rays. The institute was formally established at the M.G. Science Institute, Ahmedabad, with support from the Karmkshetra Educational Foundation and the Ahmedabad Education Society. Prof. K. R. Ramanathan was the first Director of the institute. The initial focus was research on cosmic rays and the properties of the upper atmos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mt Abu Observatory
The Mount Abu InfraRed Observatory (MIRO) is located near the town Mount Abu in the state of Rajasthan, India. The observatory is at an altitude of 1680 metres and is adjacent to Guru Shikhar, highest peak of the Aravalli Range. The 1.2 m infrared telescope at It is the first major facility in India specifically designed for ground-based, infrared observations of celestial objects. Further the low amount of precipitable water vapour (1–2 mm during winter) at Guru Shikhar makes it a good site for the infrared telescope observations. The site has been found to be good (about 150 cloud free nights per year) for astronomical observations. Location The Observatory is located near Guru Shikhar, the highest peak of the Aravalli Range at an altitude of 1680 metres. Mount Abu is about 28 km from the Abu Road railway station and about 240 km from Ahmedabad. MIRO is operated by the Astronomy & Astrophysics Division of the Physical Research Laboratory, Ahmedabad. Observation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atri
Atri ( sa, अत्रि) or Attri is a Vedic sage, who is credited with composing numerous hymns to Agni, Indra, and other Vedic deities of Hinduism. Atri is one of the Saptarishi (seven great Vedic sages) in the Hindu tradition, and the one most mentioned in its scripture Rigveda. The fifth Mandala (Book 5) of the Rigveda is called the Atri Mandala in his honour, and the eighty seven hymns in it are attributed to him and his descendants. Atri is also mentioned in the Puranas and the Hindu epics of the Ramayana and the Mahabharata. Legend Atri is one of the seven great Rishi or Saptarshi along with Marichi, Angiras, Pulaha, Kratu, Pulastya and Vashistha. According to the legends of the Vedic era, sage Atri was married to Anasuya Devi. They had three sons, Dattatreya, Durvasa and Chandra. As per divine account, he is the last among the seven saptharishis and is believed to have originated from the tongue. The wife of Atri was Anasuya, who is considered one of the seven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anasuya
Anasuya () is an ascetic, and the wife of Sage Atri in Hinduism. She is the daughter of Devahuti and Sage Kardama in Hindu texts. In the ''Ramayana'', she lives with her husband in a small hermitage on the southern border of the Chitrakuta forest. A pious woman who leads an austere life, she is described as having miraculous powers. Anasuya is the sister of the sage Kapila, who also served as her teacher. She is extolled as ''Sati Anasuya'' (Ascetic Anasuya) and ''Mata Anasuya'' (Mother Anasuya), the chaste wife of Sage Atri. She becomes the mother of Dattatreya, the sage-avatar of Vishnu, Chandra, a form of Brahma, and Durvasa, the irascible sage avatar of Shiva. When Sita and Rama visit her during their exile, Anasuya is very attentive to them, giving the former an unguent that would maintain her beauty forever. Etymology Anasuya is composed of two Sanskrit words: ''ana'' and ''asūya,'' translating to the 'one who is free from jealousy or envy'''. Legend Origin The gene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dattatreya
Dattatreya ( sa, दत्तात्रेय, ), Dattā or Dattaguru, is a paradigmatic Sannyasi (monk) and one of the lords of yoga, venerated as a Hindu god. In Maharashtra, Goa, Andhra Pradesh, Telangana, Karnataka, Gujarat, and Madhya Pradesh he is a syncretic deity, In Bengal he is known as 'Trinath', avatar of the three Hindu gods Brahma, Vishnu, and Shiva, who are also collectively known as the Trimurti. In other regions, and some versions of texts such as Garuda Purana, Brahma Purana and Sattvata Samhita, he is an avatar of Vishnu only. Several Upanishads are dedicated to him, as are texts of the Vedanta-Yoga tradition in Hinduism. One of the most important texts of Hinduism, namely Avadhuta Gita (literally, "song of the free soul") is attributed to Dattatreya. Over time, Dattatreya has inspired many monastic movements in Shaivism, Vaishnavism, and Shaktism, particularly in the Deccan region of India, south India, Gujarat, Madhya Pradesh, Rajasthan and Himalayan regi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
