Guest guest Posted December 15, 2007 Report Share Posted December 15, 2007 Dear Mr. Chandra Hari: I hope you don't mind me jumping into this discussion. I am trying to focus on who came up with helio-centric concept first. All the text books in U.S. indicate that it was the Greeks. Are there facts which can contradict this statement? We know the following about Greeks: (please correct me if I am wrong) 1. Greeks knew early on that the earth was round because they had calculated the circumference. Even though they knew that the earth was round, Plato and Aristotle of 3rd century BC believed on the geocentric concept. 2. Only Aristarchus of Samos came up with “Sun at the centre concept”. This must have happened prior to 212 BC. Even he assumed that the sun was fixed. 3. Somewhere here Hipparchus zeroed in on the percussion of the equinoxes. 4. After this, we fast forward the dark ages to 15th century AD, when Copernicus, a Polish astronomer somewhat nailed the helio-centric theory. Coming to the Indian scene, we can deduce the following or can we? again, please correct me if I am wrong) 1.Parasura knew that the earth was round and it revolved in its own axis since he has indicated the placement of the Ascendant in the different rasis. The movement of the planets and the sun around the zodiac is there. He has also shown the movement of the sun around the Zodiac, a far cry from Plato and Aristotle and even better than Aristarchus who believed in stationary sun. Can we deduce that he knew that all the planets including the earth revolved around the sun? Unlike the Greeks, most of the info in the slokas appears as though it is based on his ESP or his spiritual strength and not based on mathematics. I am not sure about what time frame he lived. I have heard that to be 800 B.C. 2. Valmiki having specified Lord Rama's birth time so clearly doesn't it indicate that he was aware of the percussion of the equinoxes. If so, how do we convince the world of this even though he predates Hipparchus? Best wishes,anantha krishnan Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 16, 2007 Report Share Posted December 16, 2007 Dear Anantha Krishnan ji, Please let me jump into this 'head going round' band wagon... ==> > 1. Greeks knew early on that the earth was round because they had calculated the circumference. Even though they knew that the earth was round, Plato and Aristotle of 3rd century BC believed on the geocentric concept. <== Wrong! Indians came to know first that earth is round - and ample proof is available in Vedas itself. Note only Plato and Aristotle, the geocentric concept of Ptolemy was there strongly present till AD 14th century!!! But Indians NEVER accepted this theory! ==> > 2. Only Aristarchus of Samos came up with " Sun at the centre concept " . This must have happened prior to 212 BC. Even he assumed that the sun was fixed. <== But the same was dropped shortly, with the advent of Ptolemy and the geocentric concept stayed there till 14th century AD. ==> > Coming to the Indian scene, ......... > 1.Parasura knew that the earth was round ... <== Parasara with no properly datable texts, and with some clouded, corrupted texts available - in NO AUTHORITY in a scientific search/study. Even the date of parasara is not clear - and who knows whether such a fellow lived or not?! It is even possible that the currently available BPHS is a made up text a text after AD 6th or 7th century!! So Parasara argument dropped, and irrelevant. ==> > 2. Valmiki having specified Lord Rama's birth time so clearly doesn't it indicate that he was aware of the percussion of the equinoxes. <== Valimiki Ramayana is also an un-datable text. But still the internal evidences clearly shows that the currently available valmiki Ramayana is a text written around AD 2nd or 3rd century. Further there is only rudiments of astrology in it, and what is there in NOT nirayana astrology but TROPICAL! Ramayan is NOT a text on astronomy and the discussion is about pure astronomical understanding with theories, proofs and related mathematics. If we have to pathetically depend on BPHS or Valmiki Ramayana for a discussion on ASTRONOMY, doesn't it show our lack of material availability? Love and regards, Sreenadh , Anantha Krishnan <anantha_krishnan_98 wrote: > > Dear Mr. Chandra Hari: > I hope you don't mind me jumping into this discussion. I am trying to focus on who came up with helio-centric concept first. All the text books in U.S. indicate that it was the Greeks. Are there facts which can contradict this statement? > We know the following about Greeks: (please correct me if I am wrong) > 1. Greeks knew early on that the earth was round because they had calculated the circumference. Even though they knew that the earth was round, Plato and Aristotle of 3rd century BC believed on the geocentric concept. > 2. Only Aristarchus of Samos came up with " Sun at the centre concept " . This must have happened prior to 212 BC. Even he assumed that the sun was fixed. > 3. Somewhere here Hipparchus zeroed in on the percussion of the equinoxes. > 4. After this, we fast forward the dark ages to 15th century AD, when Copernicus, a Polish astronomer somewhat nailed the helio-centric theory. > > Coming to the Indian scene, we can deduce the following or can we? again, please correct me if I am wrong) > 1.Parasura knew that the earth was round and it revolved in its own axis since he has indicated the placement of the Ascendant in the different rasis. The movement of the planets and the sun around the zodiac is there. He has also shown the movement of the sun around the Zodiac, a far cry from Plato and Aristotle and even better than Aristarchus who believed in stationary sun. Can we deduce that he knew that all the planets including the earth revolved around the sun? Unlike the Greeks, most of the info in the slokas appears as though it is based on his ESP or his spiritual strength and not based on mathematics. I am not sure about what time frame he lived. I have heard that to be 800 B.C. > 2. Valmiki having specified Lord Rama's birth time so clearly doesn't it indicate that he was aware of the percussion of the equinoxes. If so, how do we convince the world of this even though he predates Hipparchus? > Best wishes, > anantha krishnan > Quote Link to comment Share on other sites More sharing options...
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