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Single roller cotton gin – The Ajanta Caves of India yield evidence of a single roller cotton gin in use by the 5th century. [66] This cotton gin was used in India until innovations were made in form of foot powered gins. [67] The cotton gin was invented in India as a mechanical device known as charkhi, more technically the "wooden-worm ...
A brief introduction to technological brilliance of Ancient India (Indian Institute of Scientific Heritage) Science and Technology in Ancient India Archived 2015-05-01 at the Wayback Machine; India: Science and technology, U.S. Library of Congress. Pursuit and promotion of science: The Indian Experience, Indian National Science Academy.
India has only 140 researchers per 1,000,000 population, compared to 4,651 in the United States. [4] India invested US$3.7 billion in science and technology in 2002–2003. [5] For comparison, China invested about four times more than India, while the United States invested approximately 75 times more than India on science and technology. [5]
Revolutions to Green the Environment, to Grow the Human Heart: A Dialogue Between M.S. Swaminathan, Leader of the Ever-green Revolution and Daisaku Ikeda, Proponent of the Human Revolution. East West Books (Madras). ISBN 978-81-88661-34-3. Halving Hunger: It Can Be Done. United Nations Millennium Project Hunger Task Force. 2005.
By the 5th century: The decimal separator is developed in India, [76] as recorded in al-Uqlidisi's later commentary on Indian mathematics. [77] By the 5th century: The elliptical orbits of planets are discovered in India by at least the time of Aryabhata, and are used for the calculations of orbital periods and eclipse timings. [78]
A. P. J. Abdul Kalam, aerospace engineer, missile man of India (1931–2015 CE) E. C. George Sudarshan, theoretical physicist (1931–2018 CE) Manilal Bhaumik, physicist (1931–present CE) Nilamber Pant, space scientist (1931–present CE) P. K. Iyengar, nuclear physicist (1931–2011 CE) Surindar Kumar Trehan, mathematician (1931–2004 CE)
The Age of Revolution is a period from the late-18th to the mid-19th ... the model of scientific and ... uprising in India in 1857–58 against the ...
The extent of the Indus Valley Civilisation. This list of inventions and discoveries of the Indus Valley Civilisation lists the technological and civilisational achievements of the Indus Valley Civilisation, an ancient civilisation which flourished in the Bronze Age around the general region of the Indus River and Ghaggar-Hakra River in what is today Pakistan and northwestern India.