{"id":45504,"date":"2016-01-18T19:01:07","date_gmt":"2016-01-19T03:01:07","guid":{"rendered":"http:\/\/www.todayifoundout.com\/?p=45504"},"modified":"2016-01-18T19:01:07","modified_gmt":"2016-01-19T03:01:07","slug":"why-is-the-sun-yellow-and-the-sky-blue","status":"publish","type":"post","link":"https:\/\/www.todayifoundout.com\/index.php\/2016\/01\/why-is-the-sun-yellow-and-the-sky-blue\/","title":{"rendered":"Why is the Sun Yellow and the Sky Blue?"},"content":{"rendered":"<div class=\"pf-content\"><div class=\"highlighter\">In this video from <a href=\"https:\/\/www.youtube.com\/user\/minutephysics\" target=\"_blank\">MinutePhysics<\/a>, Henry Reich looks at the truth about what color the sky and Sun really are and why we think they are blue and yellow respectively. If you like this video, go check out and <a href=\"https:\/\/www.youtube.com\/user\/minutephysics\" target=\"_blank\">subscribe to MinutePhysics here<\/a>. You can also <a href=\"http:\/\/www.patreon.com\/TodayIFoundOut\" target=\"_blank\" rel=\"nofollow\">join us<\/a> in supporting Henry\u2019s efforts to make more videos like this by donating via MinutePhysics\u2019 <a href=\"https:\/\/www.patreon.com\/minutephysics\" target=\"_blank\" rel=\"nofollow\">Patreon page here<\/a>.<\/div>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/NafbGOQBlQs?rel=0\" width=\"850\" height=\"478\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>If you liked this video, you might also enjoy:<\/p>\n<ul>\n<li><a href=\"http:\/\/www.todayifoundout.com\/index.php\/2014\/06\/sun-sneeze\/\">The Curious Case of Sun Sneezing<\/a><\/li>\n<li><a href=\"http:\/\/www.todayifoundout.com\/index.php\/2013\/11\/color-pink-doesnt-exist-can-see\/\">The Color Pink Doesn\u2019t Exist? So Why Can We See It?<\/a><\/li>\n<li><a href=\"http:\/\/www.todayifoundout.com\/index.php\/2014\/03\/sun-burns-skin-sunscreen-prevents\/\">How the Sun Burns Your Skin and How Sunscreen Prevents This<\/a><\/li>\n<li><a href=\"http:\/\/www.todayifoundout.com\/index.php\/2011\/12\/the-earth-is-hottest-when-it-is-furthest-from-the-sun-on-its-orbit-not-when-it-is-closest\/\">The Earth is Hottest When It Is Furthest From the Sun On Its Orbit, Not When It Is Closest<\/a><\/li>\n<\/ul>\n<p><span id=\"bonusfacts\"><span id=\"bonusfacts\">Bonus<\/span><\/span> Sun Facts:<\/p>\n<ul>\n<li>The energy required to stop the Earth orbiting the Sun then is about 2.6478 \u00d7 10<sup>33<\/sup> joules or 7.3551 \u00d7 10<sup>29<\/sup> watt hours or 6.3285*10<sup>17<\/sup> megatons of TNT. For reference, the largest nuclear explosion ever detonated (the Tsar Bomba by the Soviet Union) \u201conly\u201d produced 50 megatons of TNT worth of energy. So it would take about 12,657,000,000,000,000 of those nuclear bombs detonated at the correct location to stop the Earth from orbiting the Sun.<\/li>\n<li>Along with orbiting around the Sun at 66,600 mph, the Earth is also rotating at its axis at about 1,070 miles per hour. So you are simultaneously hurtling around the sun at 66,600 mph while sitting on a rock that is spinning at 1,070 mph. On top of that, our whole solar system is rocketing through space around the center of the Milky Way at around 559,234 mph. On top of that, our galaxy is hurtling through space at around 671,080 mph, with respect to our local group of galaxies. On top of that, for all we know, our entire Universe is hurtling through some unknown medium at some other ridiculous speed.<\/li>\n<li>Once regarded by astronomers as a small and relatively insignificant star, the Sun is now known to be brighter than about 85% of the stars in the Milky Way.<\/li>\n<li>Light travels from the Sun to the Earth in about 8 minutes and 19 seconds, yet it actually takes about 10,000-170,000 years for a photon to travel from the core of the Sun to the surface.<\/li>\n<li>The Sun does not have enough mass to go supernova and explode.\u00a0 However, in about 5 billion years it will enter a red giant phase steadily expanding until it consumes the Earth.\u00a0 But fear not, the Earth will already be dead in about 1 billion years due to the fact that the Sun becomes about 10% brighter every billion years; so in 1 billion years the Earth\u2019s surface temperature will be such that no liquid water will be able to exist unprotected on the surface of the Earth.<\/li>\n<li>It takes approximately 225 million Earth years for our solar system to make one trip around the Milky Way.<\/li>\n<li>Each second about four million metric tons of matter is converted to energy within the Sun\u2019s core.\u00a0 This gives the Sun a lifetime as a main sequence star of about 10 billion years with about 5 billion years to go.<\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>In this video from MinutePhysics, Henry Reich looks at the truth about what color the sky and Sun really are and why we think they are blue and yellow respectively. If you like this video, go check out and subscribe to MinutePhysics here. You can also join us in supporting Henry\u2019s efforts to make more videos like this by donating [&#8230;]<\/p>\n","protected":false},"author":2,"featured_media":45505,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2957],"tags":[],"class_list":["post-45504","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-educational_videos"],"_links":{"self":[{"href":"https:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/posts\/45504","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/comments?post=45504"}],"version-history":[{"count":1,"href":"https:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/posts\/45504\/revisions"}],"predecessor-version":[{"id":45506,"href":"https:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/posts\/45504\/revisions\/45506"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/media\/45505"}],"wp:attachment":[{"href":"https:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/media?parent=45504"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/categories?post=45504"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/tags?post=45504"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}