By Thanu Padmanabhan
India has a robust and old culture of astronomy, which seamlessly merges with the present actions in Astronomy and Astrophysics within the state. whereas the more youthful iteration of astronomers and scholars are quite conversant in the present amenities and the astronomical examine, they may not have an both solid wisdom of the wealthy background of Indian astronomy. this actual quantity, introduced out as part of the Platinum Jubilee Celebrations of Indian nationwide technology Academy, concentrates on chosen facets of historic improvement of Indian astronomy within the kind of six invited chapters. of the chapters – by means of Balachandra Rao and M.S. Sriram – disguise old astronomy and the improvement of calculus within the historic Kerela textual content Yuktibhasa. the opposite 4 chapters through B.V. Sreekantan, Siraj Hasan, Govind Swarup and Jayant Narlikar care for the modern historical past of Indian astronomy protecting house astronomy, optical astronomy, radio astronomy and advancements in relativistic astrophysics. those chapters, written by way of specialists within the box, supply an in-depth research of the topic and make this quantity rather unique.
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Anyone alive within the eighteeth century could have identified that "the logitude problem" was once the thorniest medical obstacle of the day--and were for hundreds of years. missing the power to degree their longitude, sailors in the course of the nice a long time of exploration have been actually misplaced at sea once they overpassed land. hundreds of thousands of lives, and the expanding fortunes of countries, held on a resolution.
The clinical institution of Europe--from Galileo to Sir Issac Newton--had mapped the heavens in either hemispheres in its definite pursuit of a celestial solution. In stark distinction, one guy, John Harrison, dared to visualize a mechanical solution--a clock that may continue percise time at sea, anything no clock had ever been in a position to do on land. Longitude is a dramatic human tale of an epic medical quest and Harrison's forty-year obsession with development his excellent timekeeper, recognized this present day because the chronometer. choked with heroism and chicanery, it's also a desirable short historical past of astronomy, navigation, and clockmaking, and opens a brand new window on our world.
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First released 1995
ebook ISBN13: 9780802779434
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Extra resources for Astronomy in India: A Historical Perspective
Siddhanta-siromai of Bhaskara II - Eng. Exposition Kendriya Skt. Vidyapeetha (now RSVP), Timpati, 1980; Reprinted 2000 3. Bhat Ramakrishna M, Banarsidass Motilal (1981) Brhat Samhita ofVarahamihira, Eng. Tr. and Notes Delhi 4. Billard Roger (1971) L'astronomie indienne: ... , publications de I' ecole francaise d' extreme orient, Ixxxiii; Paris 5. , ed. and reprinted by Phanindralal Gangooli with Intn. by PC. Sengupta, Motilal Banarsidass Delhi 6. ChatteIjee Bina Khandaakhadyaka of Brahmagupta - Ed.
I of GaJ:zita- Yuktibhiisii in reference 2 See the references listed in the prologue to Vol. I of GaJ:zita- Yuktibhiiijii in reference 2 27 28 M. S. Sriram are systematically developed. jii and its contents, especially of its astronomy part. jii. jii comes closest to the Kepler model (which was to come more than a century later), as far as planetary positions in a geocentric framework are considered. 5. For the sake of comparison, the geocentric position of a planet in Kepler's model is discussed in the Appendix.
L7) When [3 and ~ are small, this reduces to OP OP is the bhii-tiirii-graha-vivara or the earth-planet distance, while SP is the sun-planet distance. This is exactly the same as the relation Eq. 51 in the appendix in Kepler's model, relating the geocentric latitude [3E and the heliocentric latitude [3s.