{"id":3831,"date":"2011-08-20T12:11:00","date_gmt":"2011-08-20T12:11:00","guid":{"rendered":"https:\/\/www.eastrovedica.com\/wordpress\/?p=3831"},"modified":"2011-08-20T12:11:00","modified_gmt":"2011-08-20T12:11:00","slug":"the-idea-of-planetary-mass-in-india","status":"publish","type":"post","link":"https:\/\/www.eastrovedica.com\/wordpress\/?p=3831","title":{"rendered":"The Idea of Planetary Mass in India"},"content":{"rendered":"<p><iframe loading=\"lazy\" width=\"480\" height=\"345\" src=\"http:\/\/www.youtube.com\/embed\/IP2SDbhFbXk\" frameborder=\"0\" allowfullscreen><\/iframe><\/p>\n<p>Many ancient cultures have contributed to the development of Astro Physics. <\/p>\n<p>Some examples are<\/p>\n<p>The Saros cycles of eclipses discovered by Egyptians<br \/>\n<br \/>The classification of stars by the Greeks<br \/>\n<br \/>Sunspot observations of the Chinese<br \/>\n<br \/>The phenomenon of Retrogression discovered by Babylonians<\/p>\n<p>In this context the Indian contribution to Astro Physics ( which includes Astronomy, Maths  and Astrology ) is the the development of the ideas of planetary forces and differential equations to calculate the geocentric planetary longitudes, several centuries before the European Renaissance.  <\/p>\n<p>Natural Strength is one of the Sixfold Strengths,<span style=\"font-style:italic;\"> Shad Balas <\/span>and goes by the name <span style=\"font-style:italic;\">Naisargika Bala<\/span>. It is directly proportional to the size of the celestial bodies and inversely proportional to the geocentric distance. (<span style=\"font-style:italic;\"> Horasara<\/span> ). <\/p>\n<p><span style=\"font-style:italic;\">Naisargika Bala<\/span> or Natural Strength is used to compare planetary physical forces. When two  planets occupy the same, identical position in the Zodiac at a given instant of time, such a phenomenon goes by the name of planetary war or <span style=\"font-style:italic;\">Graha Yuddha<\/span>,happening when two planets are in close conjunction. The <span style=\"font-style:italic;\">Karanaratna<\/span> written by Devacharya explains that the planet with the larger diameter is the victor in this planetary war. This implies <span style=\"font-style:italic;\">Naisargika Bala.<br \/>\n<br \/><\/span><br \/>\n<br \/>The <span style=\"font-style:italic;\">Surya Siddhanta<\/span> says &#8221; The dynamics or quantity of motion produced by the action of a fixed force to different planetary objects is inversely related to the quantity of matter in these objects&#8221;<\/p>\n<p>This definition more or less equals the statement of Newton\u2019s second law of motion<\/p>\n<p>M = Fa<br \/>\n<br \/>or<br \/>\n<br \/>a = F\/M<\/p>\n<p>So it  strongly suggests that the idea of planetary mass was known to the ancient Indian astronomers and mathematicians.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Many ancient cultures have contributed to the development of Astro Physics. Some examples are The Saros cycles of eclipses discovered by Egyptians The classification of stars by the Greeks Sunspot observations of the Chinese The phenomenon of Retrogression discovered by Babylonians In this context the Indian contribution to Astro Physics ( which includes Astronomy, Maths &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.eastrovedica.com\/wordpress\/?p=3831\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;The Idea of Planetary Mass in India&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3831","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.eastrovedica.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3831","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.eastrovedica.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.eastrovedica.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.eastrovedica.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.eastrovedica.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3831"}],"version-history":[{"count":0,"href":"https:\/\/www.eastrovedica.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3831\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.eastrovedica.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.eastrovedica.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3831"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.eastrovedica.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}