In 1881, Charles Fritts created the first commercial solar panel, which was reported by Fritts as "continuous, constant and of considerable force not only by exposure to sunlight but also to dim, diffused daylight." However, these solar panels were very inefficient, especially compared to coal-fired power plants. In 1939, Russell Ohl created the solar cell design that is used in many modern solar panels. He patented his design in 1941. In 1954, this design was first used by Bell Labs to create the first commercially viable silicon solar cell. In 1957, Mohamed M. Atalla developed the process of silicon surface passivation by thermal oxidation at Bell Labs. The surface passivation process has since been critical to solar cell efficiency.
Television broadcasting began in India in 1959 as a state-run medium of communication and expanded slowly for more than two decades. The state monopoly on television broadcast ended in the 1990s. Since then, satellite channels have increasingly shaped the popular culture of Indian society. Today, television is the most penetrative media in India; industry estimates indicate that as of 2012 there are over 554 million TV consumers, 462 million with satellite or cable connections compared to other forms of mass media such as the press (350 million), radio (156 million) or internet (37 million).
More InfoDriven by growth, India's nominal GDP per capita increased steadily from US$329 in 1991, when economic liberalisation began, to US$1,265 in 2010, to an estimated US$1,723 in 2016. It is expected to grow to US$2,358 by 2020. However, it has remained lower than those of other Asian developing countries like Indonesia, Malaysia, Philippines, Sri Lanka, and Thailand, and is expected to remain so in the near future. Its GDP per capita is higher than Bangladesh, Pakistan, Nepal, Afghanistan and others.
More InfoDriven by growth, India's nominal GDP per capita increased steadily from US$329 in 1991, when economic liberalisation began, to US$1,265 in 2010, to an estimated US$1,723 in 2016. It is expected to grow to US$2,358 by 2020. However, it has remained lower than those of other Asian developing countries like Indonesia, Malaysia, Philippines, Sri Lanka, and Thailand, and is expected to remain so in the near future. Its GDP per capita is higher than Bangladesh, Pakistan, Nepal, Afghanistan and others.
More InfoThe improved results garnered by the Indian Davis Cup team and other Indian tennis players in the early 2010s have made tennis increasingly popular in the country. India has a comparatively strong presence in shooting sports, and has won several medals at the Olympics, the World Shooting Championships, and the Commonwealth Games. Other sports in which Indians have succeeded internationally include badminton (Saina Nehwal and P V Sindhu are two of the top-ranked female badminton players in the world), boxing, and wrestling. Football is popular in West Bengal, Goa, Tamil Nadu, Kerala, and the north-eastern states.
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