tag:blogger.com,1999:blog-2052834374938755150.post5636485134489634713..comments2019-01-18T00:38:22.975+05:30Comments on THE HINDU PORTAL - Spiritual heritage Rituals and Practices: Quantum Theory and Om (Aum)Prof: Koti Madhav Balu Chowdarynoreply@blogger.comBlogger1125tag:blogger.com,1999:blog-2052834374938755150.post-67064443172148093772017-10-30T16:17:46.808+05:302017-10-30T16:17:46.808+05:30Do the Vedas really mention some serious physics?
...Do the Vedas really mention some serious physics?<br /><br />Partha Shakkottai, former Retired (1969-2015)<br /><br />Yes.<br /><br />“The Surya Siddhanta also estimates the diameters of the planets. The estimate for the diameter of Mercury is 3,008 miles, an error of less than 1% from the currently accepted diameter of 3,032 miles. It also estimates the diameter of Saturn as 73,882 miles, which again has an error of less than 1% from the currently accepted diameter of 74,580. Its estimate for the diameter of Mars is 3,772 miles, which has an error within 11% of the currently accepted diameter of 4,218 miles. It also estimated the diameter of Venus as 4,011 miles and Jupiter as 41,624 miles, which are roughly half the currently accepted values, 7,523 miles and 88,748 miles, respectively.” the wiki at https://en.wikipedia.org/wiki/Surya_Siddhanta<br /><br />[The Surya Siddhanta is the name of a Sanskrit treatise in Indian astronomy from late ... It calculates the earth's diameter to be 8,000 miles (modern: 7,928 miles), diameter of moon as 2,400 miles (actual ~2,160) and the distance between moon ...<br /><br />How were the planetary sizes determined? What are the possible scaling rules? Let us define<br /><br />D = Planetary diameter<br /><br />R= Orbit radius<br /><br />M = planetary mass ~ D^3<br /><br />T = Orbit time = 2 Pi/ Omega<br /><br />I = angular momentum = Integral of R^2 dm .Omega ~ R^2 D^3/ T<br /><br />Possible relations: (This law of gravitation is most unlikely to be known so early in History)<br /><br />If force is G M_sun M_planet /R^2 = Mplanet. Omega^2 R<br /><br />R^3. Omega^2 = constant<br /><br />R^3 ~T^2<br /><br />Snow plow theory:<br /><br />Larger radii sweep more particles leading to bigger planets<br /><br />D^3 ~ 2Pi R no pf particles ~ 2Pi R n. volume ~ 2 pi R R. thickness<br /><br />~ R^2 if thickness is fixed, n being number density<br /><br />Or<br /><br />D^3 ~ R^2<br /><br />Thin disk: <br /><br />In this case the planet grows to bigger than the thickness and<br /><br />D^3 ~ R^3 or D ~ R<br /><br />It appears that ancients assumed the last possibility. The planetary diameter scales with the orbital size.<br /><br />It appears that ancients assumed the last possibility. The planetary diameter scales with the orbital size.<br /><br />Body mile(D) ``Relative Size `Orbit size (modern)<br /><br />Mercury 3008. `0.38 `3.87E-01<br /><br />Venus 4011.00 ` `0.50 `7.20E-01<br /><br />Earth 8.00E+03 ` 1.00 `1.00E+00<br /><br />Mars ``3.77E+03 ``0.47 `1.52E+00<br /><br />Jupiter 4.16E+04 ` 5.20 `5.19E+00<br /><br />Saturn 7.39E+04 ``9.24E+00 9.24 9.53E+00<br /><br />( Ignore the`. I had to use it to line numbers up.) Relative size is from Surya Siddhanta and is compared to modern measurements of orbits compared to Earth’s orbit. Venus and Mars have the most disagreement . They are the rocky planets. The agreement is very good in general. Especially good for gas giants!<br /><br />Conclusion: The vedas predicted planetary sizes using the acretion model from the initial solar nebula. So it automatically means they were the first to hit upon the idea of sun-centered planetary system!<br /><br />This also means Indian Astronomy was developed by Indians with no input from the Greeks. No others have planetary diameters! The kalachakra was a giant astronomical clock and was used to calculate orbits of planets visible to the naked eye from which planet sizes were determined, a far cry from the flat earth theory of Christianity! See<br /><br />https://www.quora.com/How-was-kalachakra-used-in-Indian-Asronomy<br /><br />This uses four dials, one of which is the Zodiac, the same as the Greek one, most likely copied by the Greeks, an exact translation from Sanskrit! For fixed stars, the kalachakra uses bright stars with Sanskrit names. The Indians have been observing stars from long enough to know the period of nutation of Earth is 25,000 years.<br /><br />Rg Veda is variously dated from 1500 BC to 8000 BC (from internal evidence on the order of time when River Saraswati was still flowing).<br /><br />Edit<br />Anonymousnoreply@blogger.com