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Satellite Instructional Television Experiment

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151-657: Satellite Instructional Television Experiment or SITE was an experimental satellite communications project launched in India in 1975, designed jointly by NASA and the Indian Space Research Organization (ISRO). The project made available informational television programs to rural India. The main objectives of the experiment were to educate the financially backward and academically illiterate people of India on various issues via satellite broadcasting, and also to help India gain technical experience in

302-619: A "Look East" policy that seeks to strengthen partnerships with the ASEAN nations, Japan , and South Korea that revolve around many issues, but especially those involving economic investment and regional security. China's nuclear test of 1964 , as well as its repeated threats to intervene in support of Pakistan in the 1965 war, convinced India to develop nuclear weapons. India conducted its first nuclear weapons test in 1974 and carried out additional underground testing in 1998. Despite criticism and military sanctions, India has signed neither

453-519: A 1988 coup d'état attempt in the Maldives. After the 1965 war with Pakistan, India began to pursue close military and economic ties with the Soviet Union ; by the late 1960s, the Soviet Union was its largest arms supplier. Aside from its ongoing special relationship with Russia , India has wide-ranging defence relations with Israel and France . In recent years, it has played key roles in

604-417: A fast-growing major economy and a hub for information technology services , with an expanding middle class. India has a space programme with several planned or completed extraterrestrial missions . Indian movies , music , and spiritual teachings play an increasing role in global culture. India has substantially reduced its rate of poverty , though at the cost of increasing economic inequality. India

755-722: A multi-party system , India has six   recognised national parties , including the Indian National Congress (INC) and the Bharatiya Janata Party (BJP), and more than 50   regional parties . The Congress is considered center in Indian political culture , and the BJP right-wing . For most of the period between 1950—when India first became a republic—and the late 1980s, the Congress held

906-505: A SITE television set in Sri Lanka ) for NASA to continue the experiment. The SITE transmissions had a very significant impact in the Indian villages. For the entire year, thousands of villagers gathered around the TV set and watched the shows. Studies were conducted on the social impact of the experiment and on viewership trends. It was found that general interest and viewership were highest in

1057-532: A TV studio at Ahmedabad and a TV transmitter at Pij in Kheda district . It also gave assistance for setting up a TV Training Institute to train many of the programme production staff who would join All India Radio to work on SITE. UNESCO was the executing agency for this project. UNICEF contributed to SITE by sponsoring 21 film modules produced by Shyam Benegal , a noted Indian filmmaker. This resulted in

1208-510: A lot of interaction between filmmakers and folk-artists. Shyam Benegal went on to include many of these artists in his children's feature film Charandas Chor (1975) . The production of the television programmes was decentralised, with three Base Production Centres located at Delhi , Cuttack and Hyderabad , and an ISRO studio located in Mumbai . Each of the centres had a production studio, three IVC tape recorders, two 16 mm. projectors,

1359-674: A majority in the Parliament . Since then, however, it has increasingly shared the political stage with the BJP, as well as with powerful regional parties which have often forced the creation of multi-party coalition governments at the center. In the Republic of India's first three general elections, in 1951 , 1957 , and 1962 , the Pandit Jawaharlal Nehru -led Congress won easy victories. On Nehru's death in 1964, Lal Bahadur Shastri briefly became prime minister; he

1510-552: A more detailed treatment of this and the above frequency ranges, see Electromagnetic spectrum . Gravitational waves are also described in Hertz. Current observations are conducted in the 30–7000 Hz range by laser interferometers like LIGO , and the nanohertz (1–1000 nHz) range by pulsar timing arrays . Future space-based detectors are planned to fill in the gap, with LISA operating from 0.1–10 mHz (with some sensitivity from 10 μHz to 100 mHz), and DECIGO in

1661-685: A quarter of a million local government bodies at city, town, block, district and village levels. In the 1950s, India strongly supported decolonisation in Africa and Asia and played a leading role in the Non-Aligned Movement . After initially cordial relations with neighbouring China, India went to war with China in 1962 and was widely thought to have been humiliated. This was followed by another military conflict in 1967 in which India successfully repelled Chinese attack. India has had tense relations with neighbouring Pakistan;

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1812-610: A report on a pilot project in the use of satellite communication. The expert panel concluded that the such a project would be feasible. Following the report, a study team of three engineers from India visited USA and France in June 1967, and came to the conclusion that India could meet the technical requirements for the project. Following this, the Indian government set up the National Satellite Communications Group SATCOM in 1968 to look into

1963-679: A slide Projector in Telecine and audio equipment like tape desks and turntables. Each centre also had 2–3 full-fledged synchronised sound camera units, an editing table (Delhi had two) and a film processing plant. There was also a sound dubbing studio equipped with a pilot tone recording plant and an audio mixing console. The television programmes prepared by the Indian government at the four studios were transmitted at 6  GHz to ATS-6 from one of two ground stations located in Delhi and Ahmedabad. These signals were then re-transmitted at 860 MHz by

2114-431: A third of Indian plant species are endemic. India also contains four of the world's 34 biodiversity hotspots , or regions that display significant habitat loss in the presence of high endemism. According to official statistics, India's forest cover is 713,789 km (275,595 sq mi), which is 21.71% of the country's total land area. It can be subdivided further into broad categories of canopy density , or

2265-564: A young and rapidly growing working-age population; growth in the manufacturing sector because of rising education and engineering skill levels; and sustained growth of the consumer market driven by a rapidly growing middle-class. The World Bank cautions that, for India to achieve its economic potential, it must continue to focus on public sector reform, transport infrastructure , agricultural and rural development, removal of labour regulations, education , energy security , and public health and nutrition. Hertz The hertz (symbol: Hz )

2416-427: Is 1/time (T ). Expressed in base SI units, the unit is the reciprocal second (1/s). In English, "hertz" is also used as the plural form. As an SI unit, Hz can be prefixed ; commonly used multiples are kHz (kilohertz, 10  Hz ), MHz (megahertz, 10  Hz ), GHz (gigahertz, 10  Hz ) and THz (terahertz, 10  Hz ). One hertz (i.e. one per second) simply means "one periodic event occurs per second" (where

2567-528: Is a federation with a parliamentary system governed under the Constitution of India—the country's supreme legal document. It is a constitutional republic. Federalism in India defines the power distribution between the union and the states . The Constitution of India, which came into effect on 26 January 1950, originally stated India to be a " sovereign , democratic republic ;" this characterisation

2718-528: Is a nuclear-weapon state , which ranks high in military expenditure . It has disputes over Kashmir with its neighbours, Pakistan and China, unresolved since the mid-20th century. Among the socio-economic challenges India faces are gender inequality , child malnutrition , and rising levels of air pollution . India's land is megadiverse , with four biodiversity hotspots . Its forest cover comprises 21.7% of its area. India's wildlife , which has traditionally been viewed with tolerance in India's culture ,

2869-494: Is also used to describe the clock speeds at which computers and other electronics are driven. The units are sometimes also used as a representation of the energy of a photon , via the Planck relation E  =  hν , where E is the photon's energy, ν is its frequency, and h is the Planck constant . The hertz is defined as one per second for periodic events. The International Committee for Weights and Measures defined

3020-699: Is defined by regional kingdoms and cultural diversity. When Harsha of Kannauj , who ruled much of the Indo-Gangetic Plain from 606 to 647  CE , attempted to expand southwards, he was defeated by the Chalukya ruler of the Deccan. When his successor attempted to expand eastwards, he was defeated by the Pala king of Bengal . When the Chalukyas attempted to expand southwards, they were defeated by

3171-470: Is expected to remain so in the near future. According to a 2011 PricewaterhouseCoopers ( PwC ) report, India's GDP at purchasing power parity could overtake that of the United States by 2045. During the next four decades, Indian GDP is expected to grow at an annualised average of 8%, making it potentially the world's fastest-growing major economy until 2050. The report highlights key growth factors:

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3322-624: Is indicated by the large number of megalithic monuments dating from this period, as well as by nearby traces of agriculture , irrigation tanks , and craft traditions. In the late Vedic period, around the 6th century BCE, the small states and chiefdoms of the Ganges Plain and the north-western regions had consolidated into 16 major oligarchies and monarchies that were known as the mahajanapadas . The emerging urbanisation gave rise to non-Vedic religious movements, two of which became independent religions. Jainism came into prominence during

3473-599: Is supported among these forests, and elsewhere, in protected habitats . According to the Oxford English Dictionary (third edition 2009), the name "India" is derived from the Classical Latin India , a reference to South Asia and an uncertain region to its east. In turn the name "India" derived successively from Hellenistic Greek India ( Ἰνδία ), ancient Greek Indos ( Ἰνδός ), Old Persian Hindush (an eastern province of

3624-493: Is the unit of frequency in the International System of Units (SI), often described as being equivalent to one event (or cycle ) per second . The hertz is an SI derived unit whose formal expression in terms of SI base units is s , meaning that one hertz is one per second or the reciprocal of one second . It is used only in the case of periodic events. It is named after Heinrich Rudolf Hertz (1857–1894),

3775-452: Is usually measured in kilohertz (kHz), megahertz (MHz), or gigahertz (GHz). with the latter known as microwaves . Light is electromagnetic radiation that is even higher in frequency, and has frequencies in the range of tens of terahertz (THz, infrared ) to a few petahertz (PHz, ultraviolet ), with the visible spectrum being 400–790 THz. Electromagnetic radiation with frequencies in the low terahertz range (intermediate between those of

3926-722: The Achaemenid Empire ), and ultimately its cognate , the Sanskrit Sindhu , or "river", specifically the Indus River and, by implication, its well-settled southern basin. The ancient Greeks referred to the Indians as Indoi ( Ἰνδοί ), which translates as "The people of the Indus". The term Bharat ( Bhārat ; pronounced [ˈbʱaːɾət] ), mentioned in both Indian epic poetry and

4077-632: The Arabian Sea . Coastal features include the marshy Rann of Kutch of western India and the alluvial Sundarbans delta of eastern India; the latter is shared with Bangladesh. India has two archipelagos : the Lakshadweep , coral atolls off India's south-western coast; and the Andaman and Nicobar Islands, a volcanic chain in the Andaman Sea . Indian climate is strongly influenced by

4228-506: The Asiatic cheetah ; the blackbuck, no longer extant in Punjab, is now severely endangered in India, and the cheetah is extinct. The pervasive and ecologically devastating human encroachment of recent decades has critically endangered Indian wildlife. In response, the system of national parks and protected areas , first established in 1935, was expanded substantially. In 1972, India enacted

4379-615: The Comprehensive Nuclear-Test-Ban Treaty nor the Nuclear Non-Proliferation Treaty , considering both to be flawed and discriminatory. India maintains a " no first use " nuclear policy and is developing a nuclear triad capability as a part of its " Minimum Credible Deterrence " doctrine. It is developing a ballistic missile defence shield and, a fifth-generation fighter jet . Other indigenous military projects involve

4530-475: The Constitution of India , is used in its variations by many Indian languages . A modern rendering of the historical name Bharatavarsha , which applied originally to North India , Bharat gained increased currency from the mid-19th century as a native name for India. Hindustan ( [ɦɪndʊˈstaːn] ) is a Middle Persian name for India that became popular by the 13th century, and

4681-625: The Delhi Sultanate and drawing northern India into the cosmopolitan networks of mediaeval Islam . In the 15th century, the Vijayanagara Empire created a long-lasting composite Hindu culture in south India. In the Punjab , Sikhism emerged, rejecting institutionalised religion. The Mughal Empire , in 1526, ushered in two centuries of relative peace, leaving a legacy of luminous architecture . Gradually expanding rule of

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4832-686: The Ganges and the Brahmaputra . According to some current projections, the number and severity of droughts in India will have markedly increased by the end of the present century. India is a megadiverse country , a term employed for 17 countries that display high biological diversity and contain many species exclusively indigenous , or endemic , to them. India is the habitat for 8.6% of all mammals , 13.7% of bird species, 7.9% of reptile species, 6% of amphibian species, 12.2% of fish species, and 6.0% of all flowering plant species. Fully

4983-586: The Himalayas . Immediately south of the emerging Himalayas, plate movement created a vast crescent-shaped trough that rapidly filled with river-borne sediment and now constitutes the Indo-Gangetic Plain . The original Indian plate makes its first appearance above the sediment in the ancient Aravalli range , which extends from the Delhi Ridge in a southwesterly direction. To the west lies

5134-548: The Indian Rebellion of 1857 . Fed by diverse resentments and perceptions, including invasive British-style social reforms, harsh land taxes, and summary treatment of some rich landowners and princes, the rebellion rocked many regions of northern and central India and shook the foundations of Company rule. Although the rebellion was suppressed by 1858, it led to the dissolution of the East India Company and

5285-597: The Indian subcontinent from Africa no later than 55,000 years ago. Their long occupation, initially in varying forms of isolation as hunter-gatherers, has made the region highly diverse, second only to Africa in human genetic diversity . Settled life emerged on the subcontinent in the western margins of the Indus river basin 9,000 years ago, evolving gradually into the Indus Valley Civilisation of

5436-535: The Indus Valley Civilisation , the first urban culture in South Asia, which flourished during 2500–1900  BCE in Pakistan and western India. Centred around cities such as Mohenjo-daro , Harappa , Dholavira , and Kalibangan , and relying on varied forms of subsistence, the civilisation engaged robustly in crafts production and wide-ranging trade. During the period 2000–500  BCE , many regions of

5587-720: The Intelsat -III and Arvi Earth Station organisation agreed to provide free satellite time for pre-SITE testing. The United Nations Development Programme (UNDP) provided assistance of $ 500,000 for setting up the Experimental Satellite Communications Earth Station (ESCES) at Ahmedabad and nominated the International Telecommunication Union (ITU) as the executing agency for this project. The UNDP provided another $ 1.5 million, for setting up

5738-668: The Pallavas from farther south, who in turn were opposed by the Pandyas and the Cholas from still farther south. No ruler of this period was able to create an empire and consistently control lands much beyond their core region. During this time, pastoral peoples, whose land had been cleared to make way for the growing agricultural economy, were accommodated within caste society, as were new non-traditional ruling classes. The caste system consequently began to show regional differences. In

5889-557: The South Asia Satellite , a gift from India to its neighbouring SAARC countries. In October 2018, India signed a US$ 5.43 billion (over ₹ 400 billion) agreement with Russia to procure four S-400 Triumf surface-to-air missile defence systems, Russia's most advanced long-range missile defence system. According to the International Monetary Fund (IMF), the Indian economy in 2024

6040-735: The South Asian Association for Regional Cooperation and the World Trade Organization . The nation has provided 100,000 military and police personnel to serve in 35 UN peacekeeping operations across four continents. It participates in the East Asia Summit , the G8+5 , and other multilateral forums. India has close economic ties with countries in South America , Asia, and Africa; it pursues

6191-748: The Thar Desert , the eastern spread of which is checked by the Aravallis. The remaining Indian Plate survives as peninsular India , the oldest and geologically most stable part of India. It extends as far north as the Satpura and Vindhya ranges in central India. These parallel chains run from the Arabian Sea coast in Gujarat in the west to the coal-rich Chota Nagpur Plateau in Jharkhand in

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6342-739: The United Kingdom , and Canada . The President of India is the supreme commander of the nation's armed forces; with 1.45 million active troops, they compose the world's second-largest military . It comprises the Indian Army , the Indian Navy , the Indian Air Force , and the Indian Coast Guard . The official Indian defence budget for 2011 was US$ 36.03 billion, or 1.83% of GDP. Defence expenditure

6493-717: The Wildlife Protection Act and Project Tiger to safeguard crucial wilderness; the Forest Conservation Act was enacted in 1980 and amendments added in 1988. India hosts more than five hundred wildlife sanctuaries and eighteen   biosphere reserves , four of which are part of the World Network of Biosphere Reserves ; seventy-five wetlands are registered under the Ramsar Convention . A parliamentary republic with

6644-496: The direct administration of India by the British government. Proclaiming a unitary state and a gradual but limited British-style parliamentary system, the new rulers also protected princes and landed gentry as a feudal safeguard against future unrest. In the decades following, public life gradually emerged all over India, leading eventually to the founding of the Indian National Congress in 1885. The rush of technology and

6795-531: The temperate coniferous forest of the Himalayas , the moist deciduous sal forest of eastern India, and the dry deciduous teak forest of central and southern India. Open forest , whose canopy density is between 10% and 40%, occupies 9.26% of India's land area. India has two natural zones of thorn forest , one in the Deccan Plateau , immediately east of the Western Ghats, and the other in

6946-449: The 0.1–10 Hz range. In computers, most central processing units (CPU) are labeled in terms of their clock rate expressed in megahertz ( MHz ) or gigahertz ( GHz ). This specification refers to the frequency of the CPU's master clock signal . This signal is nominally a square wave , which is an electrical voltage that switches between low and high logic levels at regular intervals. As

7097-476: The 10th century, Muslim Central Asian nomadic clans, using swift-horse cavalry and raising vast armies united by ethnicity and religion, repeatedly overran South Asia's north-western plains, leading eventually to the establishment of the Islamic Delhi Sultanate in 1206. The sultanate was to control much of North India and to make many forays into South India. Although at first disruptive for

7248-526: The 17th century was a factor in India's economic expansion, resulting in greater patronage of painting , literary forms, textiles, and architecture . Newly coherent social groups in northern and western India, such as the Marathas , the Rajputs , and the Sikhs , gained military and governing ambitions during Mughal rule, which, through collaboration or adversity, gave them both recognition and military experience. Expanding commerce during Mughal rule gave rise to new Indian commercial and political elites along

7399-653: The 1820s. India was then no longer exporting manufactured goods as it long had, but was instead supplying the British Empire with raw materials. Many historians consider this to be the onset of India's colonial period. By this time, with its economic power severely curtailed by the British parliament and having effectively been made an arm of British administration, the East India Company began more consciously to enter non-economic arenas, including education, social reform, and culture. Historians consider India's modern age to have begun sometime between 1848 and 1885. The appointment in 1848 of Lord Dalhousie as Governor General of

7550-468: The 1970s. In some usage, the "per second" was omitted, so that "megacycles" (Mc) was used as an abbreviation of "megacycles per second" (that is, megahertz (MHz)). Sound is a traveling longitudinal wave , which is an oscillation of pressure . Humans perceive the frequency of a sound as its pitch . Each musical note corresponds to a particular frequency. An infant's ear is able to perceive frequencies ranging from 20 Hz to 20 000  Hz ;

7701-596: The 1980s and the collaboration with Soviet Union for technical know-how, has created a large urban middle class, transformed India into one of the world's fastest-growing economies , and increased its geopolitical clout. Yet, India is also shaped by seemingly unyielding poverty, both rural and urban; by religious and caste-related violence ; by Maoist-inspired Naxalite insurgencies ; and by separatism in Jammu and Kashmir and in Northeast India . It has unresolved territorial disputes with China and with Pakistan . India's sustained democratic freedoms are unique among

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7852-473: The 3rd century BCE, the kingdom of Magadha had annexed or reduced other states to emerge as the Maurya Empire . The empire was once thought to have controlled most of the subcontinent except the far south, but its core regions are now thought to have been separated by large autonomous areas. The Mauryan kings are known as much for their empire-building and determined management of public life as for Ashoka 's renunciation of militarism and far-flung advocacy of

8003-633: The 4th and 5th centuries, the Gupta Empire had created a complex system of administration and taxation in the greater Ganges Plain; this system became a model for later Indian kingdoms. Under the Guptas, a renewed Hinduism based on devotion, rather than the management of ritual, began to assert itself. This renewal was reflected in a flowering of sculpture and architecture , which found patrons among an urban elite. Classical Sanskrit literature flowered as well, and Indian science , astronomy , medicine , and mathematics made significant advances. The Indian early medieval age, from 600 to 1200  CE ,

8154-493: The 6th and 7th centuries, the first devotional hymns were created in the Tamil language. They were imitated all over India and led to both the resurgence of Hinduism and the development of all modern languages of the subcontinent . Indian royalty, big and small, and the temples they patronised drew citizens in great numbers to the capital cities, which became economic hubs as well. Temple towns of various sizes began to appear everywhere as India underwent another urbanisation. By

8305-521: The 8th and 9th centuries, the effects were felt in Southeast Asia, as South Indian culture and political systems were exported to lands that became part of modern-day Myanmar , Thailand , Laos , Brunei , Cambodia , Vietnam , Philippines , Malaysia , and Indonesia . Indian merchants, scholars, and sometimes armies were involved in this transmission; Southeast Asians took the initiative as well, with many sojourning in Indian seminaries and translating Buddhist and Hindu texts into their languages. After

8456-433: The Andaman, Nicobar, and Lakshadweep island chains. According to the Indian naval hydrographic charts, the mainland coastline consists of the following: 43% sandy beaches; 11% rocky shores, including cliffs; and 46% mudflats or marshy shores. Major Himalayan-origin rivers that substantially flow through India include the Ganges and the Brahmaputra , both of which drain into the Bay of Bengal . Important tributaries of

8607-468: The BJP became the first political party since 1984 to win a majority and govern without the support of other parties. In the 2019 general election , the BJP was victorious again with majority. In the 2024 general election , the BJP failed to achieve majority and the BJP-led NDA coalition formed the government . Narendra Modi , a former chief minister of Gujarat , is serving as the 14th Prime Minister of India in his third term since May 26, 2014. India

8758-435: The BJP was able to form a successful coalition, the National Democratic Alliance (NDA). Led by Atal Bihari Vajpayee , the NDA became the first non-Congress, coalition government to complete a five-year term. Again in the 2004 Indian general elections , no party won an absolute majority, but the Congress emerged as the largest single party, forming another successful coalition: the United Progressive Alliance (UPA). It had

8909-429: The British East India Company followed, turning India into a colonial economy but also consolidating its sovereignty . British Crown rule began in 1858. The rights promised to Indians were granted slowly, but technological changes were introduced, and modern ideas of education and public life took root. A pioneering and influential nationalist movement emerged, which was noted for nonviolent resistance and became

9060-498: The Buddha is recorded in the Pali canon to have sought enlightenment. Many Indian species have descended from those of Gondwana , the southern supercontinent from which India separated more than 100 million years ago. India's subsequent collision with Eurasia set off a mass exchange of species. However, volcanism and climatic changes later caused the extinction of many endemic Indian forms. Still later, mammals entered India from Asia through two zoogeographic passes flanking

9211-436: The Buddhist dhamma . The Sangam literature of the Tamil language reveals that, between 200  BCE and 200  CE , the southern peninsula was ruled by the Cheras , the Cholas , and the Pandyas , dynasties that traded extensively with the Roman Empire and with West and Southeast Asia . In North India, Hinduism asserted patriarchal control within the family, leading to increased subordination of women. By

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9362-627: The Congress saw a change in leadership in 1984, when Indira Gandhi was assassinated ; she was succeeded by her son Rajiv Gandhi , who won an easy victory in the general elections later that year . The Congress was voted out again in 1989 when a National Front coalition, led by the newly formed Janata Dal in alliance with the Left Front , won the elections; that government too proved relatively short-lived, lasting just under two years. There were two prime ministers during this period; V.P. Singh and Chandra Shekhar . Elections were held again in 1991 ; no party won an absolute majority. The Congress, as

9513-424: The East India Company set the stage for changes essential to a modern state. These included the consolidation and demarcation of sovereignty, the surveillance of the population, and the education of citizens. Technological changes—among them, railways, canals, and the telegraph—were introduced not long after their introduction in Europe . However, disaffection with the company also grew during this time and set off

9664-418: The Ganges include the Yamuna and the Kosi ; the latter's extremely low gradient, caused by long-term silt deposition, leads to severe floods and course changes. Major peninsular rivers, whose steeper gradients prevent their waters from flooding, include the Godavari , the Mahanadi , the Kaveri , and the Krishna , which also drain into the Bay of Bengal; and the Narmada and the Tapti , which drain into

9815-438: The Himalayas and the Thar Desert, both of which drive the economically and culturally pivotal summer and winter monsoons . The Himalayas prevent cold Central Asian katabatic winds from blowing in, keeping the bulk of the Indian subcontinent warmer than most locations at similar latitudes. The Thar Desert plays a crucial role in attracting the moisture-laden south-west summer monsoon winds that, between June and October, provide

9966-399: The Himalayas. This had the effect of lowering endemism among India's mammals, which stands at 12.6%, contrasting with 45.8% among reptiles and 55.8% among amphibians. Among endemics are the vulnerable hooded leaf monkey and the threatened Beddome's toad of the Western Ghats. India contains 172 IUCN -designated threatened animal species , or 2.9% of endangered forms. These include

10117-401: The Indian elites, the sultanate largely left its vast non-Muslim subject population to its own laws and customs. By repeatedly repulsing Mongol raiders in the 13th century, the sultanate saved India from the devastation visited on West and Central Asia, setting the scene for centuries of migration of fleeing soldiers, learned men, mystics, traders, artists, and artisans from that region into

10268-408: The Mughals united their far-flung realms through loyalty, expressed through a Persianised culture, to an emperor who had near-divine status. The Mughal state's economic policies, deriving most revenues from agriculture and mandating that taxes be paid in the well-regulated silver currency, caused peasants and artisans to enter larger markets. The relative peace maintained by the empire during much of

10419-484: The SITE clusters, at the SITE studio in Bombay , and at the headquarters of the REC in Ahmedabad. The research design was finalized by the SITE Social Science Research Co-ordination Committee under the chairmanship of Dr. M. S. Gore, Director of the Tata Institute of Social Sciences in Bombay. Impact on primary school children was studied under a joint project involving ISRO and the National Council of Educational Research and Training (NCERT). The overall evaluation design

10570-610: The TV set density was higher than in the villages while not as much as in a city. The concept of a low-power limited rebroadcast (LRB) TV transmitter system was evolved to overcome such situations. The LRB consisted of a simple receiver system having a 4.5 m chicken-mesh parabolic antenna with a low-noise block converter , that served as the front-end for a low-power TV transmitter at the same location. Two suitable locations, Sambalpur in Orissa (75 villages) and Muzaffarpur in Bihar (110 villages), were tentatively identified for implementing LRB transmitter systems. This experiment

10721-415: The Vikram Sarabhai approach NASA for help. Sarabhai saw this as a great opportunity for India to expand its space program and to train Indian scientists and engineers. Consequently, the Indian Department of Atomic Energy and NASA signed an agreement regarding SITE in 1969. The experiment was launched on 1 August 1975. As per the Memorandum of Understanding signed between the two countries, the objectives of

10872-557: The advent of independence in 1947, but tempered by the partition of India into two states: India and Pakistan. Vital to India's self-image as an independent nation was its constitution, completed in 1950, which put in place a secular and democratic republic. Per the London Declaration , India retained its membership of the Commonwealth , becoming the first republic within it. Economic liberalisation, which began in

11023-512: The agricultural sector 18.1%. India's foreign exchange remittances of US$ 100 billion in 2022, highest in the world, were contributed to its economy by 32 million Indians working in foreign countries. Major agricultural products include rice, wheat, oilseed, cotton, jute, tea, sugarcane, and potatoes. Major industries include textiles, telecommunications, chemicals, pharmaceuticals, biotechnology, food processing, steel, transport equipment, cement, mining, petroleum, machinery, and software. In 2006,

11174-476: The average adult human can hear sounds between 20 Hz and 16 000  Hz . The range of ultrasound , infrasound and other physical vibrations such as molecular and atomic vibrations extends from a few femtohertz into the terahertz range and beyond. Electromagnetic radiation is often described by its frequency—the number of oscillations of the perpendicular electric and magnetic fields per second—expressed in hertz. Radio frequency radiation

11325-498: The banking sector, 44th in business sophistication, and 39th in innovation, ahead of several advanced economies. With seven of the world's top 15 information technology outsourcing companies based in India, as of 2009 , the country is viewed as the second-most favourable outsourcing destination after the United States. India is ranked 39th in the Global Innovation Index in 2024. As of 2023 , India's consumer market

11476-608: The beginnings of a nonviolent movement of non-co-operation, of which Mahatma Gandhi would become the leader and enduring symbol. During the 1930s, slow legislative reform was enacted by the British; the Indian National Congress won victories in the resulting elections. The next decade was beset with crises: Indian participation in World War ;II , the Congress's final push for non-co-operation, and an upsurge of Muslim nationalism . All were capped by

11627-495: The coasts of southern and eastern India. As the empire disintegrated, many among these elites were able to seek and control their own affairs. By the early 18th century, with the lines between commercial and political dominance being increasingly blurred, a number of European trading companies, including the English East India Company , had established coastal outposts. The East India Company's control of

11778-452: The commercialisation of agriculture in the second half of the 19th century was marked by economic setbacks, and many small farmers became dependent on the whims of far-away markets. There was an increase in the number of large-scale famines , and, despite the risks of infrastructure development borne by Indian taxpayers, little industrial employment was generated for Indians. There were also salutary effects: commercial cropping, especially in

11929-625: The contribution of petrochemical and engineering goods to total exports grew from 14% to 42%. India was the world's second-largest textile exporter after China in the 2013 calendar year. Averaging an economic growth rate of 7.5% for several years prior to 2007, India has more than doubled its hourly wage rates during the first decade of the 21st century. Some 431 million Indians have left poverty since 1985; India's middle classes are projected to number around 580 million by 2030. Though ranking 68th in global competitiveness , as of 2010 , India ranks 17th in financial market sophistication, 24th in

12080-551: The declining status of women, and the incorporation of untouchability into an organised system of belief. In South India , the Middle kingdoms exported Dravidian-languages scripts and religious cultures to the kingdoms of Southeast Asia . In the early mediaeval era, Christianity , Islam , Judaism , and Zoroastrianism became established on India's southern and western coasts. Muslim armies from Central Asia intermittently overran India's northern plains, eventually founding

12231-581: The design and implementation of Vikrant -class aircraft carriers and Arihant -class nuclear submarines . Since the end of the Cold War , India has increased its economic, strategic, and military co-operation with the United States and the European Union . In 2008, a civilian nuclear agreement was signed between India and the United States. Although India possessed nuclear weapons at

12382-519: The direct broadcasts, the earth station at Ahmedabad was micro-wave linked to the TV transmitter built in the village of Pij. The Delhi studio was linked to the terrestrial TV transmitters of AIR. A receive-only station was built in Amritsar and linked to the local TV transmitter. The DRS undertook terrestrial broadcasting for large cities and direct broadcasting to SITE television sets for remote villages. However, it did not provide for small towns where

12533-492: The duration of the project. The project was supported by various international agencies such as the UNDP , UNESCO , UNICEF and ITU . The experiment was successful, as it played a major role in helping develop India's own satellite program, INSAT . The project showed that India could use advanced technology to fulfill the socio-economic needs of the country. SITE was followed by similar experiments in various countries, which showed

12684-507: The early 16th century, northern India, then under mainly Muslim rulers, fell again to the superior mobility and firepower of a new generation of Central Asian warriors. The resulting Mughal Empire did not stamp out the local societies it came to rule. Instead, it balanced and pacified them through new administrative practices and diverse and inclusive ruling elites, leading to more systematic, centralised, and uniform rule. Eschewing tribal bonds and Islamic identity, especially under Akbar ,

12835-705: The earth station were tested and evaluated before SITE was launched. This was done firstly using a spacecraft simulator from NASA, then using the Indian Ocean Intelsat satellite and finally using the ATS-6 satellite. All the components of the Direct Reception System were also thoroughly tested. The TV set was tested by the British Aircraft Corporation . The 3-meter antenna was tested thoroughly before deciding on

12986-664: The east. To the south, the remaining peninsular landmass, the Deccan Plateau , is flanked on the west and east by coastal ranges known as the Western and Eastern Ghats ; the plateau contains the country's oldest rock formations, some over one billion years old. Constituted in such fashion, India lies to the north of the equator between 6° 44′ and 35° 30′ north latitude and 68° 7′ and 97° 25′ east longitude. India's coastline measures 7,517 kilometres (4,700 mi) in length; of this distance, 5,423 kilometres (3,400 mi) belong to peninsular India and 2,094 kilometres (1,300 mi) to

13137-513: The endangered Bengal tiger and the Ganges river dolphin . Critically endangered species include the gharial , a crocodilian ; the great Indian bustard ; and the Indian white-rumped vulture , which has become nearly extinct by having ingested the carrion of diclofenac -treated cattle. Before they were extensively used for agriculture and cleared for human settlement, the thorn forests of Punjab were mingled at intervals with open grasslands that were grazed by large herds of blackbuck preyed on by

13288-478: The equator for testing a direct-broadcast satellite. While the communist regime of China was not recognized at the time by the U.S., Brazil was also ruled out as its population was concentrated in the cities, affecting the outreach of the broadcast across the country. As a consequence, India emerged as the only suitable candidate; however, its strained relationship with the U.S. prevented the U.S. government from directly asking for its assistance, preferring India to make

13439-440: The event being counted may be a complete cycle); 100 Hz means "one hundred periodic events occur per second", and so on. The unit may be applied to any periodic event—for example, a clock might be said to tick at 1 Hz , or a human heart might be said to beat at 1.2 Hz . The occurrence rate of aperiodic or stochastic events is expressed in reciprocal second or inverse second (1/s or s ) in general or, in

13590-402: The field of satellite communications. The experiment ran for one year from 1 August 1975 to 31 July 1976, covering more than 2400 villages in 20 districts of six Indian states and territories (Andhra Pradesh, Bihar, Karnataka, Madhya Pradesh, Orissa, Rajasthan). The television programs were produced by All India Radio and broadcast by NASA's ATS-6 (ATS-F) satellite stationed above India for

13741-501: The final design. Data on failure rates was collected and analysis of the first 1800 failures was carried out to help design future DRS systems. As decided in the original agreement, the SITE program ended in July, 1976 and NASA shifted its ATS satellite away from India, despite demands from Indian villagers, journalists and others such as noted writer Arthur C. Clarke (who was presented with

13892-505: The first few months of the program (200 to 600 people per TV set) and then declined gradually (60 to 80 people per TV set). This decline was due to several factors, including faults developing in the television equipment, failure in electricity supply, and hardware defects, as also the villagers' pre-occupation with domestic or agricultural work. Impact on the rural population was highest in the fields of agriculture and family planning. Nearly 52% of viewers reported themselves amenable to applying

14043-403: The first person to provide conclusive proof of the existence of electromagnetic waves . For high frequencies, the unit is commonly expressed in multiples : kilohertz (kHz), megahertz (MHz), gigahertz (GHz), terahertz (THz). Some of the unit's most common uses are in the description of periodic waveforms and musical tones , particularly those used in radio - and audio-related applications. It

14194-443: The first request for assistance for its own nascent space program . At the same time, India was trying to launch its national space program under the leadership of Vikram Sarabhai . India was interested in the role of satellites for the purpose of communication and asked UNESCO to undertake a feasibility study for a project in that field. Between 18 November 1967 and 8 December 1967, UNESCO sent an expert mission to India to prepare

14345-491: The government. Special committees on education, agriculture, health and family planning identified their own programme priorities and conveyed it to AIR. Two types of programmes were prepared for broadcasting: educational television (ETV) and instructional television (ITV). ETV programmes were meant for school children and focussed on interesting and creative educational programmes. These programmes were broadcast for 1.5 hours during school hours. During holidays, this time

14496-449: The hertz has become the primary unit of measurement accepted by the general populace to determine the performance of a CPU, many experts have criticized this approach, which they claim is an easily manipulable benchmark . Some processors use multiple clock cycles to perform a single operation, while others can perform multiple operations in a single cycle. For personal computers, CPU clock speeds have ranged from approximately 1 MHz in

14647-413: The highest normally usable radio frequencies and long-wave infrared light) is often called terahertz radiation . Even higher frequencies exist, such as that of X-rays and gamma rays , which can be measured in exahertz (EHz). For historical reasons, the frequencies of light and higher frequency electromagnetic radiation are more commonly specified in terms of their wavelengths or photon energies : for

14798-487: The impact of SITE. These included the Impact Survey (Adults) to measure the impact on adults, SITE Impact Survey Children (SIS-C) to measure the impact on school children, and the qualitative anthropology study to measure, at a macro-level, the change brought by TV in rural society. Besides the social evaluation, a technical evaluation was also carried out to help India develop future systems. All major sub-systems of

14949-509: The important role satellite TV could play in providing education. As part of its Applications Technology Satellites program in the 1960s, NASA sought to field test the direct broadcast of television programs to terrestrial receivers via satellite and shortlisted India, Brazil and the People's Republic of China as potential sites to stage the test. The country which would receive these broadcasts would have to be large enough and also close to

15100-494: The largest single party, was able to form a minority government led by P. V. Narasimha Rao . A two-year period of political turmoil followed the general election of 1996 . Several short-lived alliances shared power at the centre. The BJP formed a government briefly in 1996; it was followed by two comparatively long-lasting United Front coalitions, which depended on external support. There were two prime ministers during this period; H.D. Deve Gowda and I.K. Gujral . In 1998 ,

15251-459: The late 1970s ( Atari , Commodore , Apple computers ) to up to 6 GHz in IBM Power microprocessors . Various computer buses , such as the front-side bus connecting the CPU and northbridge , also operate at various frequencies in the megahertz range. Higher frequencies than the International System of Units provides prefixes for are believed to occur naturally in the frequencies of

15402-478: The life of its exemplar, Mahavira . Buddhism , based on the teachings of Gautama Buddha , attracted followers from all social classes excepting the middle class; chronicling the life of the Buddha was central to the beginnings of recorded history in India. In an age of increasing urban wealth, both religions held up renunciation as an ideal, and both established long-lasting monastic traditions. Politically, by

15553-511: The major factor in ending British rule. In 1947, the British Indian Empire was partitioned into two independent dominions , a Hindu-majority dominion of India and a Muslim-majority dominion of Pakistan , amid large-scale loss of life and an unprecedented migration. India has been a federal republic since 1950, governed through a democratic parliamentary system , and has been the world's most populous democracy since

15704-471: The majority of India's rainfall. Four major climatic groupings predominate in India: tropical wet , tropical dry , subtropical humid , and montane . Temperatures in India have risen by 0.7 °C (1.3 °F) between 1901 and 2018. Climate change in India is often thought to be the cause. The retreat of Himalayan glaciers has adversely affected the flow rate of the major Himalayan rivers, including

15855-417: The medium of satellite broadcasts. Besides these social objectives, India also wanted to gain experience in all the technical aspects of the system, including broadcast and reception facilities and TV program material. The primary US objective was to test the design and functioning of an efficient, medium-power, wide bandspace-borne FM transmitter, operating in the 800–900  MHz band and gain experience on

16006-420: The nation to liberalise its economy ; since then, it has moved increasingly towards a free-market system by emphasising both foreign trade and direct investment inflows. India has been a member of World Trade Organization since 1 January 1995. The 522-million-worker Indian labour force is the world's second largest , as of 2017 . The service sector makes up 55.6% of GDP, the industrial sector 26.3% and

16157-593: The new knowledge gained by them. Similar experiments were conducted in the Appalachian region , Rocky Mountains , Alaska , Canada , China and Latin America in the mid-seventies and early eighties. These experiments demonstrated that satellite TV could play a very important role in providing education. Before SITE, the focus was on the use of terrestrial transmission for television signals. But SITE showed that India could make use of advanced technology to fulfill

16308-445: The newly canalled Punjab, led to increased food production for internal consumption. The railway network provided critical famine relief, notably reduced the cost of moving goods, and helped nascent Indian-owned industry. After World War I , in which approximately one million Indians served , a new period began. It was marked by British reforms but also repressive legislation , by more strident Indian calls for self-rule, and by

16459-539: The northern and western regions. By 400  BCE , stratification and exclusion by caste had emerged within Hinduism, and Buddhism and Jainism had arisen, proclaiming social orders unlinked to heredity. Early political consolidations gave rise to the loose-knit Maurya and Gupta Empires based in the Ganges Basin . Their collective era was suffused with wide-ranging creativity, but also marked by

16610-443: The possible uses of a synchronous communications satellite for India. This group consisted of representatives from various cabinet ministries, ISRO and All India Radio (AIR) And Doordarshan . The group recommended that India should use the ATS-6 satellite– a second generation satellite developed by NASA– for an experiment in educational television. Arnold Frutkin , then NASA's director of international programs, arranged to have

16761-406: The programmes were beamed for four hours daily in two transmissions. The targeted audience was categorised into four linguistic groups— Hindi , Oriya , Telugu and Kannada —and programmes were produced according to the language spoken in the cluster. Due to linguistic and cultural differences, it was agreed that all core programmes would be cluster-specific, and would be in the primary language of

16912-484: The project were divided into two parts—general objectives and specific objectives. The general objectives of the project were to: The primary social objectives from an Indian perspective were to educate the populace about issues related to family planning, agricultural practices and national integration. The secondary objectives were to impart general school and adult education, train teachers, improve other occupational skills and to improve general health and hygiene through

17063-546: The proportion of the area of a forest covered by its tree canopy . Very dense forest , whose canopy density is greater than 70%, occupies 3.02% of India's land area. It predominates in the tropical moist forest of the Andaman Islands , the Western Ghats , and Northeast India . Moderately dense forest , whose canopy density is between 40% and 70%, occupies 9.39% of India's land area. It predominates in

17214-538: The region. A brief commentary giving the gist of the programme would be available on the second audio channel, to keep up the interest of the audience in other language regions. All clusters would also receive 30 minutes of common programmes, including news, which would be broadcast only in Hindi . The social research and evaluation of SITE was done by ISRO's special SITE Research and Evaluation Cell (REC). The REC consisted of around 100 persons who were located in each of

17365-564: The rules for capitalisation of a common noun ; i.e., hertz becomes capitalised at the beginning of a sentence and in titles but is otherwise in lower case. The hertz is named after the German physicist Heinrich Hertz (1857–1894), who made important scientific contributions to the study of electromagnetism . The name was established by the International Electrotechnical Commission (IEC) in 1935. It

17516-440: The satellite, which were directly received in 2000 villages by community television receivers with 3  m parabolic antennas . Regular television stations also received the signals and broadcast them to another 3000 villages in the standard VHF television band. Each television signal had two audio channels to carry audio in two major languages of each cluster. This setup was called the Direct Reception System (DRS). Apart from

17667-548: The seas, greater resources, and more advanced military training and technology led it to increasingly assert its military strength and caused it to become attractive to a portion of the Indian elite; these factors were crucial in allowing the company to gain control over the Bengal region by 1765 and sideline the other European companies. Its further access to the riches of Bengal and the subsequent increased strength and size of its army enabled it to annex or subdue most of India by

17818-409: The second as "the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium -133 atom" and then adds: "It follows that the hyperfine splitting in the ground state of the caesium 133 atom is exactly 9 192 631 770  hertz , ν hfs Cs = 9 192 631 770  Hz ." The dimension of the unit hertz

17969-463: The share of external trade in India's GDP stood at 24%, up from 6% in 1985. In 2008, India's share of world trade was 1.7%; In 2021, India was the world's ninth-largest importer and the sixteenth-largest exporter . Major exports include petroleum products, textile goods, jewellery, software, engineering goods, chemicals, and manufactured leather goods. Major imports include crude oil, machinery, gems, fertiliser, and chemicals. Between 2001 and 2011,

18120-524: The socio-economic needs of the country. This led to an increased focus on satellite broadcasting in India. ISRO began preparations for a country-wide satellite system. After conducting several technical experiments, the Indian National Satellite System was launched by ISRO in 1982. The Indian space program remained committed to the goal of using satellites for educational purposes. In September 2004, India launched EDUSAT , which

18271-605: The south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west; China , Nepal , and Bhutan to the north; and Bangladesh and Myanmar to the east. In the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives ; its Andaman and Nicobar Islands share a maritime border with Thailand , Myanmar, and Indonesia . Modern humans arrived on

18422-576: The southern supercontinent Gondwana , began a north-eastward drift caused by seafloor spreading to its south-west, and later, south and south-east. Simultaneously, the vast Tethyan oceanic crust , to its northeast, began to subduct under the Eurasian Plate . These dual processes, driven by convection in the Earth's mantle , both created the Indian Ocean and caused the Indian continental crust eventually to under-thrust Eurasia and to uplift

18573-413: The specific case of radioactivity , in becquerels . Whereas 1 Hz (one per second) specifically refers to one cycle (or periodic event) per second, 1 Bq (also one per second) specifically refers to one radionuclide event per second on average. Even though frequency, angular velocity , angular frequency and radioactivity all have the dimension T , of these only frequency is expressed using

18724-416: The subcontinent from the north-west. The caste system , which created a hierarchy of priests, warriors, and free peasants, but which excluded indigenous peoples by labelling their occupations impure, arose during this period. On the Deccan Plateau , archaeological evidence from this period suggests the existence of a chiefdom stage of political organisation. In South India , a progression to sedentary life

18875-526: The subcontinent transitioned from the Chalcolithic cultures to the Iron Age ones. The Vedas , the oldest scriptures associated with Hinduism , were composed during this period, and historians have analysed these to posit a Vedic culture in the Punjab region and the upper Gangetic Plain . Most historians also consider this period to have encompassed several waves of Indo-Aryan migration into

19026-441: The subcontinent, thereby creating a syncretic Indo-Islamic culture in the north. The sultanate's raiding and weakening of the regional kingdoms of South India paved the way for the indigenous Vijayanagara Empire . Embracing a strong Shaivite tradition and building upon the military technology of the sultanate, the empire came to control much of peninsular India, and was to influence South Indian society for long afterwards. In

19177-414: The support of left-leaning parties and MPs who opposed the BJP. The UPA returned to power in the 2009 general election with increased numbers, and it no longer required external support from India's communist parties . That year, Manmohan Singh became the first prime minister since Jawaharlal Nehru in 1957 and 1962 to be re-elected to a consecutive five-year term. In the 2014 general election ,

19328-511: The third millennium BCE. By at least 1200  BCE , an archaic form of Sanskrit , an Indo-European language , had diffused into India from the northwest. Its evidence today is found in the hymns of the Rigveda . Preserved by an oral tradition that was resolutely vigilant , the Rigveda records the dawning of Hinduism in India. The Dravidian languages of India were supplanted in

19479-527: The time SITE would end. SITE was launched in twenty districts spread across the other six states. Each of the states thus selected was called a "cluster". In each cluster, 3–4 districts, each containing around 1000 villages, were identified. Finally, around 400 villages were chosen in each cluster. Close to 80% villages selected for SITE did not have electricity in the buildings where the SITE TV sets would be installed. A special project called Operation Electricity

19630-677: The time and was not a party to the Nuclear Non-Proliferation Treaty, it received waivers from the International Atomic Energy Agency and the Nuclear Suppliers Group , ending earlier restrictions on India's nuclear technology and commerce. As a consequence, India became the sixth de facto nuclear weapons state. India subsequently signed co-operation agreements involving civilian nuclear energy with Russia, France,

19781-456: The time of its independence in 1947. It is a pluralistic , multilingual and multi-ethnic society . India's nominal per capita income increased from US$ 64 annually in 1951 to US$ 2,601 in 2022, and its literacy rate from 16.6% to 74%. During the same time, its population grew from 361 million to almost 1.4 billion, and India became the most populous country in 2023. From being a comparatively destitute country in 1951, India has become

19932-462: The two nations have gone to war four times: in 1947 , 1965 , 1971 , and 1999 . Three of these wars were fought over the disputed territory of Kashmir , while the third, the 1971 war, followed from India's support for the independence of Bangladesh . In the late 1980s, the Indian military twice intervened abroad at the invitation of the host country: a peace-keeping operation in Sri Lanka between 1987 and 1990; and an armed intervention to prevent

20083-639: The union territories of Jammu and Kashmir , Puducherry and the National Capital Territory of Delhi , have elected legislatures and governments following the Westminster system of governance. The remaining five union territories are directly ruled by the central government through appointed administrators. In 1956, under the States Reorganisation Act , states were reorganised on a linguistic basis. There are over

20234-480: The unit hertz. Thus a disc rotating at 60 revolutions per minute (rpm) is said to have an angular velocity of 2 π  rad/s and a frequency of rotation of 1 Hz . The correspondence between a frequency f with the unit hertz and an angular velocity ω with the unit radians per second is The hertz is named after Heinrich Hertz . As with every SI unit named for a person, its symbol starts with an upper case letter (Hz), but when written in full, it follows

20385-564: The utilisation of this space application. A joint ISRO-NASA working group was established even before the Memorandum of Understanding was signed. This working group studied the possibility of using a communications satellite for TV broadcast in India. After the MoU was signed, many review meetings were held between NASA and ISRO scientists. Indian scientists visited NASA to study front-end converters and earth station operations. On India's request,

20536-495: The western part of the Indo-Gangetic plain, now turned into rich agricultural land by irrigation, its features no longer visible. Among the Indian subcontinent's notable indigenous trees are the astringent Azadirachta indica , or neem , which is widely used in rural Indian herbal medicine , and the luxuriant Ficus religiosa , or peepul , which is displayed on the ancient seals of Mohenjo-daro , and under which

20687-444: The world in nominal per capita income and 125th in per capita income adjusted for purchasing power parity (PPP)—the vast majority of Indians fall into the low-income group. Until 1991, all Indian governments followed protectionist policies that were influenced by socialist economics. Widespread state intervention and regulation largely walled the economy off from the outside world. An acute balance of payments crisis in 1991 forced

20838-537: The world's newer nations; however, in spite of its recent economic successes, freedom from want for its disadvantaged population remains a goal yet to be achieved. India accounts for the bulk of the Indian subcontinent, lying atop the Indian tectonic plate , a part of the Indo-Australian Plate . India's defining geological processes began 75 million years ago when the Indian Plate, then part of

20989-490: Was adopted by the General Conference on Weights and Measures (CGPM) ( Conférence générale des poids et mesures ) in 1960, replacing the previous name for the unit, "cycles per second" (cps), along with its related multiples, primarily "kilocycles per second" (kc/s) and "megacycles per second" (Mc/s), and occasionally "kilomegacycles per second" (kMc/s). The term "cycles per second" was largely replaced by "hertz" by

21140-457: Was amended in 1971 to "a sovereign, socialist , secular , democratic republic". India's form of government, traditionally described as "quasi-federal" with a strong centre and weak states, has grown increasingly federal since the late 1990s as a result of political, economic, and social changes. The Government of India comprises three branches: India is a federal union comprising 28 states and 8 union territories . All states, as well as

21291-418: Was divided into three stages. The first stage, the formative or input research, was a detailed study of the potential audience. The second stage, process evaluation, was the evaluation carried out during the life-time of SITE. This evaluation provided information about the reaction of the villagers to different programmes. The third stage, the summative evaluation, involved a number of different studies to measure

21442-486: Was expected to provide useful data on the trade-off between DRS and LRB. However, due to financial constraints, these two LRBs had to be shelved, and instead an LRB was set up at SHAR, Sriharikota . As the broadcasting time was limited, it was decided that the direct reception receivers would only be installed in 2400 villages in six regions spread across the country. Technical and social criteria were used to select suitable areas to conduct this experiment. A computer program

21593-420: Was launched to urgently electrify the villages before the start of SITE. 150 villages would have television sets running on solar cells and batteries. These sets were specially designed by Indian engineers with help from NASA. * These districts are now located in the state of Chhattisgarh . All India Radio had the main responsibility for programme generation and the programmes were made in consultation with

21744-426: Was nominally worth $ 3.94 trillion; it was the fifth-largest economy by market exchange rates and is, at around $ 15.0 trillion, the third-largest by purchasing power parity (PPP). With its average annual GDP growth rate of 5.8% over the past two decades, and reaching 6.1% during 2011–2012, India is one of the world's fastest-growing economies . However, due to its low GDP per capita—which ranks 136th in

21895-528: Was pegged at US$ 70.12 billion for fiscal year 2022–23 and, increased 9.8% than previous fiscal year. India is the world's second-largest arms importer; between 2016 and 2020, it accounted for 9.5% of the total global arms imports. Much of the military expenditure was focused on defence against Pakistan and countering growing Chinese influence in the Indian Ocean. In May 2017, the Indian Space Research Organisation launched

22046-561: Was specially designed at ISRO to help make this selection. As one of the aims of the experiment was to study the potential of TV as a medium of development, the villages were chosen specifically for their backwardness. According to the 1971 census of India , the states having the most number of backward districts in the country were Orissa , Bihar , Andhra Pradesh , Uttar Pradesh , Rajasthan , Madhya Pradesh , West Bengal and Karnataka . Uttar Pradesh and West Bengal were eventually left out, as they were slated to get terrestrial television by

22197-532: Was succeeded, after his own unexpected death in 1966, by Nehru's daughter Indira Gandhi , who went on to lead the Congress to election victories in 1967 and 1971 . Following public discontent with the state of emergency she declared in 1975, the Congress was voted out of power in 1977 ; the then-new Janata Party , which had opposed the emergency, was voted in. Its government lasted just over two years. There were two prime ministers during this period; Morarji Desai and Charan Singh . Voted back into power in 1980,

22348-411: Was the world's fifth largest . Driven by growth, India's nominal GDP per capita increased steadily from US$ 308 in 1991, when economic liberalisation began, to US$ 1,380 in 2010, to an estimated US$ 2,731 in 2024. It is expected to grow to US$ 3,264 by 2026. However, it has remained lower than those of other Asian developing countries such as Indonesia, Malaysia, Philippines, Sri Lanka, and Thailand, and

22499-585: Was the first satellite in the world built exclusively to serve the educational sector. EDUSAT is used to meet the demand for an interactive satellite-based distance education system for India. India India , officially the Republic of India , is a country in South Asia . It is the seventh-largest country in the world by area and the most populous country . Bounded by the Indian Ocean on

22650-432: Was used to broadcast Teacher Training Programmes designed to train almost 100,000 primary school teachers during the duration of the SITE. The ITV programmes were meant for adult audiences, mainly to those who were illiterate. They were broadcast for 2.5 hours during the evenings. The programmes covered health, hygiene, family planning, nutrition, improved practices in agriculture and events of national importance. Thus,

22801-912: Was used widely since the era of the Mughal Empire . The meaning of Hindustan has varied, referring to a region encompassing the northern Indian subcontinent (present-day northern India and Pakistan ) or to India in its near entirety. By 55,000 years ago, the first modern humans, or Homo sapiens , had arrived on the Indian subcontinent from Africa, where they had earlier evolved. The earliest known modern human remains in South Asia date to about 30,000 years ago. After 6500  BCE , evidence for domestication of food crops and animals, construction of permanent structures, and storage of agricultural surplus appeared in Mehrgarh and other sites in Balochistan, Pakistan . These gradually developed into

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