<?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>Sun, 28 Jun 2026 23:52:19 GMT</lastBuildDate><atom:link href="https://ecency.com/created/vectors/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/c3b94a80</link><guid isPermaLink="true">https://ecency.com/@mes/c3b94a80</guid><category><![CDATA[hive-128780]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Sat, 30 May 2026 04:20:18 GMT</pubDate><enclosure url="https://i.ecency.com/p/C3TZR1g81UNb7kNWBddwhMwEGh2N8MCZYjSqkJfLAD4eD18xfrndj651ZAZdJPA3G2qobrCcEN358RLdZ7xnnwpMHGEFZGRqNJeDjH99uMJndtouH9TBAb8?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Vector Equation Of A Line]]></title><description><![CDATA[Hi there. In this math post, I cover the vector equation of a line. Math images/text mostly from QuickLaTeX.com. Image Source Vector Equation Of Line Before giving the vector equation of a line, I cover]]></description><link>https://ecency.com/@dkmathstats/vector-equation-of-a-line</link><guid isPermaLink="true">https://ecency.com/@dkmathstats/vector-equation-of-a-line</guid><category><![CDATA[hive-163521]]></category><dc:creator><![CDATA[dkmathstats]]></dc:creator><pubDate>Tue, 23 Jun 2026 15:57:39 GMT</pubDate><enclosure url="https://i.ecency.com/p/3HaJVw3AYyXB6DfixgRs18hVdqwooFTPVzUC54j2BtdmZcjZ41bqkFJQ3CdaWBYrqPdNMidy64Y5u6PDA4DxhdDiFVK25Yy79FteTEN?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[MES Math Q/A 64: What are Electromagnetic Potentials?]]></title><description><![CDATA[YouTube - Rumble - Odysee - BitChute - X - Twitch - Math Q/A playlist Electromagnetic potentials are mathematical fields introduced via vector calculus identities to satisfy the homogeneous Maxwell equations]]></description><link>https://ecency.com/@mes/electromagnetic-potentials-947</link><guid isPermaLink="true">https://ecency.com/@mes/electromagnetic-potentials-947</guid><category><![CDATA[hive-128780]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Wed, 10 Jun 2026 17:24:33 GMT</pubDate><enclosure url="https://i.ecency.com/p/k75bsZMwYNu2L3iBMXq5y7xeiy1isFJsZxnMZSXuXEsxe4ee1cUkGyPeqsdq1z8jjMsanzu1mKNiffQm7rXy6SQF1sFQis99m87SBgccHbdMjeieU77QommZn9LLGmNv6YxTA59soFC9VqCzLP37c68krjKdAZH82?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Geosynchronous Satellite + Arthur C. Clarke's connections with 9/11, Ball Lightning, & Cold Fusion]]></title><description><![CDATA[In this video, I use the equation for Kepler's third law to calculate the required altitude above Earth's equator of a satellite to have the same period as Earth's 24-hour rotation, and which is called]]></description><link>https://ecency.com/@mes/lkt-mq7ohwtg-mk39bv6w</link><guid isPermaLink="true">https://ecency.com/@mes/lkt-mq7ohwtg-mk39bv6w</guid><category><![CDATA[hive-111030]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Wed, 10 Jun 2026 06:20:30 GMT</pubDate><enclosure url="https://i.ecency.com/p/54TLbcUcnRm3sWQK3E3A5LrCpeXCj7zpDfwsbjBpRg7oDYtPVDx9jGWmFwMYbey5J1o3ZpKvfkLp8NkzLFQeJixAAXL64epCkHac52WjKXaBvQ8fUmGnoZmcnATPvPDSEouA17zXH?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Geosynchronous Satellite + Arthur C. Clarke's connections with 9/11, Ball Lightning, & Cold Fusion]]></title><description><![CDATA[3Speak - YouTube - Telegram - Notes - Playlist - Vector Functions - MES Links In this video, I use the equation for Kepler's third law to calculate the required altitude above Earth's equator of a satellite]]></description><link>https://ecency.com/@mes/in-this-video-i-use-the-equ-630</link><guid isPermaLink="true">https://ecency.com/@mes/in-this-video-i-use-the-equ-630</guid><category><![CDATA[hive-128780]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Wed, 10 Jun 2026 05:41:12 GMT</pubDate><enclosure url="https://i.ecency.com/p/k75bsZMwYNu2L3iBMXq5y7xeiy1isFJsZxnMZSXuXEsxe4ee1cUkGyPeqsdq1z8huUoF2vn9vpyDx66YJ9xAunWT8BZSLvJayA4cNWve5tmBf91KJWD5BNwCScGnGLnhqtSaPo1aQ236gNDSmzESvo4acjiKkEkEr?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Length of Earth's Orbit around the Sun is 299 million km wide]]></title><description><![CDATA[In this video, I use Kepler's third law to calculate the length of Earth's elliptical orbit to be around 299,000,000 km wide and takes about 365.25 days to complete 1 full revolution. The equation for]]></description><link>https://ecency.com/@mes/lkt-mq4mz6nq-zpyeplma</link><guid isPermaLink="true">https://ecency.com/@mes/lkt-mq4mz6nq-zpyeplma</guid><category><![CDATA[hive-111030]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Mon, 08 Jun 2026 03:14:09 GMT</pubDate><enclosure url="https://i.ecency.com/p/vM1pGHgNcyCXUWJEC7NzdDWQwGTDiTh9mAiNTn3b8xTnSMFcPsZLYcHhne88Qsf6BWg8kMW8wsxhtSncaJHCFj3VKokQTzexTNK3cYNm5wd1j216rXxUMnzZGqKj7iBqWnEvfMR?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Kepler's Third Law: Square of Planet's Orbital Period is Proportional to the Cube of its Major Axis]]></title><description><![CDATA[In this video, I derive Kepler's 3rd Law of planetary motion and obtain a formula for a planet's period of orbit around the Sun in terms of the length of its major axis. Using the results of Laws 1 and]]></description><link>https://ecency.com/@mes/lkt-mq1xqsvd-mmpklbef</link><guid isPermaLink="true">https://ecency.com/@mes/lkt-mq1xqsvd-mmpklbef</guid><category><![CDATA[hive-111030]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Sat, 06 Jun 2026 05:52:24 GMT</pubDate><enclosure url="https://i.ecency.com/p/2r8F9rTBenJQfQgENeTSahwbgwXbiWivavXVxnXvHWdq1EHJJvCdc95rHgEthPbv1iJuYyRpZ4QZGS1QAmwbkBUPuMiQapNbdatYWkHThUA4qKpBQw6Ps7t8uq6Q3RRod?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Kepler's Third Law: Square of Planet's Orbital Period is Proportional to the Cube of its Major Axis]]></title><description><![CDATA[3Speak - YouTube - Telegram - Summary - Notes - Sections playlist - Vector Functions playlist - MES Links In this video, I derive Kepler's 3rd Law of planetary motion and obtain a formula for a planet's]]></description><link>https://ecency.com/@mes/3speak-1780703532917</link><guid isPermaLink="true">https://ecency.com/@mes/3speak-1780703532917</guid><category><![CDATA[hive-128780]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Fri, 05 Jun 2026 23:52:12 GMT</pubDate><enclosure url="https://i.ecency.com/p/AmRc67RgYaWTamZtjiRVK9pxDgRdg2RtnXmG5dbeGuzK3WNfkBktwpffUqdSNySmADTn7icj6JjYVtDsDxq2EMeyYiEV5vAgJx78A3JtNBv2tbCQmSnzKKFhSihai1CYV8K11JLDpECpVF1FnBV3Y547uL1grqHp?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Kepler's Second Law: A Planet's Orbit Sweeps out Equal Areas in Equal Times]]></title><description><![CDATA[In this video, I derive Kepler's 2nd law of planetary motion and show that the line joining the Sun to a planet sweeps out equal areas in equal times. In other words, the rate of change of the area of]]></description><link>https://ecency.com/@mes/lkt-mq021nkr-fmh3v8il</link><guid isPermaLink="true">https://ecency.com/@mes/lkt-mq021nkr-fmh3v8il</guid><category><![CDATA[hive-111030]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Thu, 04 Jun 2026 22:17:12 GMT</pubDate><enclosure url="https://i.ecency.com/p/99pyU5Ga1kwqSXWA2YKhumhz7Hg4EEC3WjFcqDyUBsoYt1cwQ5pLa6gQ6JYxG6cosi8LF2fw5NNmPmM7BWnefch2ARbUq8muUJb4GogLZXd21ZE9sq62oKkZCpmhufjxFR?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Kepler's Second Law: A Planet's Orbit Sweeps out Equal Areas in Equal Times]]></title><description><![CDATA[3Speak - YouTube - Telegram - Summary - Notes - Sections playlist - Vector Functions playlist - MES Links In this video, I derive Kepler's 2nd law of planetary motion and show that the line joining the]]></description><link>https://ecency.com/@mes/3speak-1780602948236</link><guid isPermaLink="true">https://ecency.com/@mes/3speak-1780602948236</guid><category><![CDATA[hive-128780]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Thu, 04 Jun 2026 19:55:48 GMT</pubDate><enclosure url="https://i.ecency.com/p/AmRc67RgYaWTamZtjiRVK9pxDgRdg2RtnXmG5dbeGuzK3WNfkBktwpffUqdSNySmAhjGKXvnA9fXtsjDF163HQnK9UNcMyLZKm5pmduQc9wyi2U88rAJ2KJL15hpVMTYtC8to4hRUeyrQHQMPdzLVWGZHKtmTk6A?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Kepler's First Law: Planets Revolve around the Sun in an Ellipse]]></title><description><![CDATA[In this video, I derive Kepler's 1st law of planetary motion entirely from Newton's second law of motion and Newton's law of universal gravitation, while making extensive use of the calculus of vector]]></description><link>https://ecency.com/@mes/lkt-mpwynju0-mq7hw8m8</link><guid isPermaLink="true">https://ecency.com/@mes/lkt-mpwynju0-mq7hw8m8</guid><category><![CDATA[hive-111030]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Tue, 02 Jun 2026 18:19:57 GMT</pubDate><enclosure url="https://i.ecency.com/p/2r8F9rTBenJQfQgENeTSahwbgwXbiWivavXVxnXvHWdq1EHJJvCdc95bHuLFA5y4sZiM1TnFcAERNyEkJ8RgaedKoGAFgfpZTUZNjkShuLqFUxsGmsPmWQdzMQ2zccJcP?format=match&amp;mode=fit" length="0" type="false"/></item><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><item><title><![CDATA[Tangential and Normal Components of Acceleration as Derivatives of Position Vector + Example]]></title><description><![CDATA[In this video, I rewrite our earlier equations for the tangential and normal components of acceleration to be in terms of the position vector and its derivatives. This simplifies and standardizes the]]></description><link>https://ecency.com/@mes/tangential-and-normal-components-of-acceleration-as-derivatives-of-position-vector-example</link><guid isPermaLink="true">https://ecency.com/@mes/tangential-and-normal-components-of-acceleration-as-derivatives-of-position-vector-example</guid><category><![CDATA[hive-111030]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Thu, 07 May 2026 18:49:27 GMT</pubDate><enclosure url="https://i.ecency.com/p/24rqX9pG7ZxY1K8d7ieNJUeSJ7Q4KjjE5sVsWi16kk5yzbHmoRCgs2W6pZ2idgfs4PcxEqzdgZfG5YsuJzQe6j9seuqZpMrq1cxTdorFfHaSpwNwrUZpgfzyxxhNuiT29yFHA5qZDHDVqDLFYVA8b4PXLp1JSnU14sMrQkML4UzpfK5Y68V8fhBZj8dfgnhkUAxLgAN8Lg2upTma6CEzjNq79gYns1?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Tangential and Normal Components of Acceleration as Derivatives of Position Vector + Example]]></title><description><![CDATA[In this video, I rewrite our earlier equations for the tangential and normal components of acceleration to be in terms of the position vector and its derivatives. This simplifies and standardizes the]]></description><link>https://ecency.com/@mes/e0b98544</link><guid isPermaLink="true">https://ecency.com/@mes/e0b98544</guid><category><![CDATA[hive-128780]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Thu, 07 May 2026 18:25:09 GMT</pubDate><enclosure url="https://i.ecency.com/p/46aP2QbqUqBqwyMYx5rqy9vFZMnbeMhRu3KsA83BYsWYwubDhvTp5VcWq8vLLZ9uHMyBxqx2WktKWNW6qHxCBFMBwd2P?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Tangential and Normal Components of Acceleration]]></title><description><![CDATA[In this video, I write the vector equation of acceleration in terms of its unit tangent and unit normal vector components, which is useful when analyzing the motion of a particle along a curve. The unit]]></description><link>https://ecency.com/@mes/5ce9a8c6</link><guid isPermaLink="true">https://ecency.com/@mes/5ce9a8c6</guid><category><![CDATA[hive-128780]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Tue, 05 May 2026 21:55:09 GMT</pubDate><enclosure url="https://i.ecency.com/p/46aP2QbqUqBqwyMYx5rqy9vFZMnbeMhRu3KsA83BYsWYwubDhvSuadBQN5e9H12mVZc9KcrXyGgYVt9D9RiuHguj684X?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Example 6: Impact Speed of a Projectile Hitting the Ground]]></title><description><![CDATA[In this video, I determine the time a projectile is in the air, the distance it travels, and the speed it impacts the ground after being launched from 10 meters at an angle of 45 degrees and a speed of]]></description><link>https://ecency.com/@mes/example-6-impact-speed-of-a-projectile-hitting-the-ground</link><guid isPermaLink="true">https://ecency.com/@mes/example-6-impact-speed-of-a-projectile-hitting-the-ground</guid><category><![CDATA[hive-111030]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Mon, 04 May 2026 06:14:54 GMT</pubDate><enclosure url="https://i.ecency.com/p/3DLAmCsuTe3bV13dhpqdWvcxWLWLiLiErP5TM3QSxWS71hfDuw1VaB3XCHospG8krCofbdpP6c2PhVCQuzQsZ59mFZBfBsssAY2xbK4XibaFTfKkLiR5ctLNpxMjbNpvcGnG4NDFZwFnf3EH4tUrYcZr8dytxGP?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Example 6: Impact Speed of a Projectile Hitting the Ground]]></title><description><![CDATA[In this video, I determine the time a projectile is in the air, the distance it travels, and the speed it impacts the ground after being launched from 10 meters at an angle of 45 degrees and a speed of]]></description><link>https://ecency.com/@mes/ae000ba6</link><guid isPermaLink="true">https://ecency.com/@mes/ae000ba6</guid><category><![CDATA[hive-128780]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Mon, 04 May 2026 05:55:09 GMT</pubDate><enclosure url="https://i.ecency.com/p/46aP2QbqUqBqwyMYx5rqy9vFZMnbeMhRu3KsA83BYsWYwubDhrfbVndNNAiimwon2HoJoTDpy5j4oTss2CkEwjiVt1tB?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Example 5: Horizontal Distance Traveled by a Projectile]]></title><description><![CDATA[In this video, I determine the vector formula for path of a projectile launched at an angle by integrating the acceleration due to gravity acting on it, and then integrating its velocity vector. When the]]></description><link>https://ecency.com/@mes/example-5-horizontal-distance-traveled-by-a-projectile</link><guid isPermaLink="true">https://ecency.com/@mes/example-5-horizontal-distance-traveled-by-a-projectile</guid><category><![CDATA[hive-111030]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Fri, 01 May 2026 17:01:03 GMT</pubDate><enclosure url="https://i.ecency.com/p/5s4dzRwnVbzGM3JdyYKz6jx9fFPTMbZhYMErUJH1tgUBpmQC5hkUcvUYGqQbS6Zt64XazC6Bsts28CQUpiRAUA8NwBPebBoYa4ARKcJJAJ6cej84ridQayGdZDPpZU1p9ja7u6MmNjA2LWb9wirorCdc8qH7f6pkxDM7PZh?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Example 5: Horizontal Distance Traveled by a Projectile]]></title><description><![CDATA[In this video, I determine the vector formula for path of a projectile launched at an angle by integrating the acceleration due to gravity acting on it, and then integrating its velocity vector. When the]]></description><link>https://ecency.com/@mes/8dbed9fa</link><guid isPermaLink="true">https://ecency.com/@mes/8dbed9fa</guid><category><![CDATA[hive-128780]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Fri, 01 May 2026 06:30:09 GMT</pubDate><enclosure url="https://i.ecency.com/p/32FTXiZsHoAWFxzgF7aevFQV6E69FQteY5wxrfEDTc6HPNTNtucyBHcpiZK1UxbTyGk9UJcJVNYHb9J2FZmPVmEgMUc6pjj4DkasisJXLUEPqmYFtXQfHU4p7niJnZrhkp16s7DkNYMhe8vr?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Example 4: Newton's Second Law of Motion and Centripetal Force]]></title><description><![CDATA[In this video, I go over the vector version of Isaac Newton's 2nd Law of Motion, which states that if a force F acts on a particle of mass m producing an acceleration a, then F = m a, where F and a are]]></description><link>https://ecency.com/@mes/example-4-newtons-second-law-of-motion-and-centripetal-force</link><guid isPermaLink="true">https://ecency.com/@mes/example-4-newtons-second-law-of-motion-and-centripetal-force</guid><category><![CDATA[hive-111030]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Wed, 29 Apr 2026 06:23:54 GMT</pubDate><enclosure url="https://i.ecency.com/p/k75bsZMwYNtze9xHurD95Vbqvj1H34B627iFyeTf6ec4QF6swMasdLMfZTT7jc5GVkNNUcLbc7uuSC5UrY1PA7MT6rsrf4PSr5uBeWCbgWLjb336NYLz1HkSh5qdPsMvQG9sc94T9FtqkHHDsAcEU1wzqUBafSxu5?format=match&amp;mode=fit" length="0" type="false"/></item></channel></rss>