<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[RSS Feed]]></title><description><![CDATA[RSS Feed]]></description><link>https://ecency.com</link><image><url>https://ecency.com/logo512.png</url><title>RSS Feed</title><link>https://ecency.com</link></image><generator>RSS for Node</generator><lastBuildDate>Tue, 01 Sep 2026 16:09:10 GMT</lastBuildDate><atom:link href="https://ecency.com/created/keplerslaw/rss.xml" rel="self" type="application/rss+xml"/><item><title><![CDATA[Kepler’s Laws of Planetary Motion]]></title><description><![CDATA[In this video, I go over Johannes Kepler's three laws of planetary motion and derive them using Isaac Newton's second law of motion, F = m a, and his law on universal gravitation. While observing the Danish]]></description><link>https://ecency.com/@mes/lkt-mptd7dls-4umhqrkc</link><guid isPermaLink="true">https://ecency.com/@mes/lkt-mptd7dls-4umhqrkc</guid><category><![CDATA[hive-111030]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Sun, 31 May 2026 05:56:54 GMT</pubDate><enclosure url="https://i.ecency.com/p/C3TZR1g81UNaPs7vzDaqia6bahf7FE47bohivBVbmUZgSxy98AV295atCMAZritotL1kT8wjBLEVQSYYEhbtZNFd9HpLoJY6sRB438HyvqqT4T5wtK4fFBM?format=match&amp;mode=fit" length="0" type="false"/></item></channel></rss>