Jean Baptiste François Joseph de Warren (21 September 1769 – 9 February 1830), also known as John Warren, was an army captain and later lieutenant-colonel with Her Majesty's 33rd Regiment of Foot, East India Company in India, surveyor and amateur astronomer. While working as a surveyor in the Great Trigonometrical Survey he rediscovered what became the Kolar Gold Fields and in later life he documented Indian astronomy and time-keeping in his book Kala Sankalita.
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1933-2005
Dennis Walsh (12 June 1933 – 1 June 2005) was an English astronomer. He was an early radio astronomer, as well as an optical astronomer. He was best known for his discovery in 1979 of the first example of a gravitational lens, B0957+561, using an optical telescope.
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1868 - 1958
Sir Gilbert Thomas Walker CSI FRS was an English physicist and statistician of the 20th century, born on 14 June 1868, Rochdale, United Kingdom. Walker was an established applied mathematician at the University of Cambridge and gave up a Fellowship at Trinity to take up a position as assistant to the meteorological reporter in 1903. His interest moved to meteorology and he worked in India from 1903 to 1924 becoming Director-General of the Indian Observatories.
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1938 - 2017
C.V. Vishveshwara commonly known as Vishu, was an Indian scientist and black hole physicist. Specializing in Einstein's General Relativity, he worked extensively on the theory of black holes and made major contributions to this field of research since its very beginning. He is popularly known as the 'black hole man of India
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