{"id":312129,"date":"2021-07-30T16:12:29","date_gmt":"2021-07-30T13:12:29","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/heres-why-gravity-pulls-us-down-and-not-up\/"},"modified":"2021-07-30T16:12:29","modified_gmt":"2021-07-30T13:12:29","slug":"heres-why-gravity-pulls-us-down-and-not-up","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/heres-why-gravity-pulls-us-down-and-not-up\/","title":{"rendered":"#Here\u2019s why gravity pulls us down and not up"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6ac6954ed971e\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6ac6954ed971e\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/heres-why-gravity-pulls-us-down-and-not-up\/#What_is_spacetime\" >What is spacetime?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/buradabiliyorum.com\/en\/heres-why-gravity-pulls-us-down-and-not-up\/#Matter_makes_gravity_wells_not_gravity_hills\" >Matter makes gravity wells, not gravity hills<\/a><\/li><\/ul><\/nav><\/div>\n<p>&#8220;<strong>#Here\u2019s why gravity pulls us down and not up<\/strong>&#8221;<\/p>\n<div><em><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/theconversation.com\/us\/topics\/curious-kids-us-74795\">Curious Kids<\/a> is a <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/watch-movies-tv-seriess\/\" data-internallinksmanager029f6b8e52c=\"8\" title=\"Watch Movies &amp; TV Series\" target=\"_blank\" rel=\"noopener\">series<\/a> for children of all ages. If you have a question you\u2019d like an expert to answer, send it to <span class=\"__cf_email__\" data-cfemail=\"1f7c6a6d76706a6c74767b6c6a6c5f6b777a7c7071697a6d6c7e6b767071317c7072\">[email\u00a0protected]<\/span>.<\/em><\/p>\n<blockquote><p><strong>Why does gravity pull us down and not up? \u2013 Gracie, age 9, Brookline, Massachusetts<\/strong><\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/fast.wistia.net\/embed\/iframe\/xo23fcyip6?videoFoam=true&amp;autoPlay=true\" title=\"Whats it like to be a startup founder in Barcelona? Video\" allowtransparency=\"true\" frameborder=\"0\" scrolling=\"no\" class=\"wistia_embed\" name=\"wistia_embed\" allowfullscreen=\"\" msallowfullscreen=\"\" width=\"100%\" height=\"100%\"><\/iframe><\/p>\n<\/blockquote>\n<hr\/>\n<p>Gravity is the reason things with mass or energy are attracted to each other. It is why <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>les fall toward the ground and planets orbit stars.<\/p>\n<p>Magnets attract some types of metals, but they can also push other magnets away. So how come you feel only the pull of gravity?<\/p>\n<p>In 1915, Albert Einstein figured out the answer when he published his <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.space.com\/17661-theory-general-relativity.html\">theory of general relativity<\/a>. The reason gravity pulls you toward the ground is that all objects with mass, like our Earth, actually bend and curve the fabric of the universe, <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.livescience.com\/space-time.html\">called spacetime<\/a>. That curvature is what you feel as gravity.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_is_spacetime\"><\/span>What is spacetime?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Before getting into the complicated world of gravity, you need to understand spacetime.<\/p>\n<p>Spacetime is exactly what it sounds like: the three dimensions of space \u2013 length, width, and height \u2013 combined with the fourth dimension \u2013 time. Using some very brilliant math, Einstein was the first person to realize that the laws of physics work in a universe where <a rel=\"nofollow noopener\" target=\"_blank\" href=\"http:\/\/einstein.stanford.edu\/SPACETIME\/spacetime2.html\">space and time are merged together<\/a>.<\/p>\n<p>What this means is that space and time are connected \u2013 if you move really fast through space, time slows down for you compared to someone who is moving slowly. This is why astronauts \u2013 who are moving very fast in space\u2013<a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.space.com\/33411-astronaut-scott-kelly-relativity-twin-brother-ages.html\">age a tiny bit more slowly than people on Earth<\/a>.<\/p>\n<figure class=\"align-center zoomable\">\n<p><figure class=\"post-image post-mediaBleed aligncenter\"><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/images.theconversation.com\/files\/411532\/original\/file-20210715-32887-1f7ofr9.png?ixlib=rb-1.1.0&amp;rect=2%2C0%2C906%2C423&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip\"><img loading=\"lazy\" decoding=\"async\" alt=\"Two earths on a grid, one in a depression and one on top of a hill.\" width=\"600\" height=\"260\" class=\"js-lazy\" src=\"https:\/\/images.theconversation.com\/files\/411532\/original\/file-20210715-32887-1f7ofr9.png?ixlib=rb-1.1.0&amp;rect=2%2C0%2C906%2C423&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip\"\/><noscript><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/images.theconversation.com\/files\/411532\/original\/file-20210715-32887-1f7ofr9.png?ixlib=rb-1.1.0&amp;rect=2%2C0%2C906%2C423&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip\" alt=\"Two earths on a grid, one in a depression and one on top of a hill.\" width=\"600\" height=\"260\" class=\"\" srcset=\"\"\/><\/noscript><\/a><figcaption><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/thenextweb.com\/news\/#\" data-url=\"https:\/\/twitter.com\/intent\/tweet?url=https%3A%2F%2Feditorial.thenextweb.com%2Fspace%2F2021%2F07%2F30%2Fgravity-pulls-us-down-not-up-syndication%2F&amp;via=thenextweb&amp;related=thenextweb&amp;text=Check out this picture on: Earth curves spacetime so that you fall toward Earth instead of away from it. Tokamak\/WikimediaCommons, CC BY-SA\" data-title=\"Share Earth curves spacetime so that you fall toward Earth instead of away from it. Tokamak\/WikimediaCommons, CC BY-SA on Twitter\" data-width=\"685\" data-height=\"500\" class=\"post-image-share popitup\" title=\"Share Earth curves spacetime so that you fall toward Earth instead of away from it. Tokamak\/WikimediaCommons, CC BY-SA on Twitter\"><i class=\"icon icon--inline icon--twitter--dark\"\/><\/a>Earth curves spacetime so that you fall toward Earth instead of away from it. Tokamak\/Wiki<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/social-mediaa\/\" data-internallinksmanager029f6b8e52c=\"1\" title=\"Social Media\" target=\"_blank\" rel=\"noopener\">media<\/a>Commons, CC BY-SA<\/figcaption><\/figure><figcaption\/><\/p>\n<\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Matter_makes_gravity_wells_not_gravity_hills\"><\/span>Matter makes gravity wells, not gravity hills<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Remember, gravity is the idea that objects in the universe are attracted to each other because spacetime is bent and curved. When Einstein came up with <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/general\/\" data-internallinksmanager029f6b8e52c=\"3\" title=\"General\" target=\"_blank\" rel=\"noopener\">general<\/a> relativity, he showed that all stuff in the universe can curve spacetime \u2013 in physics terms that stuff is mass and energy.<\/p>\n<p>This is a two-dimensional example of how spacetime works. Your mass stretched the trampoline, creating what is called a gravity well that the ball rolls into. This is very similar to how the gravity of a heavy object \u2013 like the Earth \u2013 pulls things like you and me toward it. Since your brain usually thinks about the world in three dimensions, it is really hard to think about the four dimensions of spacetime as a single idea. So to make it easier to visualize, imagine the surface of a trampoline. If there is nothing on it, it is flat. But if you stand on the trampoline, it stretches around your feet and creates a valley with you at the center. If there is a ball on the trampoline, it would roll toward your feet.<\/p>\n<p>To make things even weirder, since space and time are connected, <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/en.wikipedia.org\/wiki\/Time_dilation\">time is also stretched by heavy objects<\/a>!<\/p>\n<figure><iframe loading=\"lazy\" title=\"Every hour we spend on that planet will be seven years back on earth\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/lznM-fygfqo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><figcaption><span class=\"caption\">In the movie \u2018Interstellar,\u2019 the characters go to a planet close to a black hole, and while they are there, they age slower than everyone else.<\/span><\/figcaption><\/figure>\n<p>The heavier you are, the steeper the sides of the trampoline well. That is why really massive things in the universe \u2013 like the Sun or black holes \u2013 have stronger gravity than Earth.<\/p>\n<p>So why does gravity pull you down and not push you away?<\/p>\n<p>Imagine someone went under the trampoline and pushed up. The ball would roll away! This would be a gravity hill, not a gravity well. As far as scientists know, matter \u2013 or stuff \u2013 always makes gravity wells and not gravity hills. Scientists can imagine things made of exotic matter or energy that would cause gravity to push you off into space, but so far, no one has found anything that could cause gravity to push you away from Earth.<\/p>\n<hr\/>\n<p><em>Hello, curious kids! Do you have a question you\u2019d like an expert to answer? Ask an adult to send your question to <span class=\"__cf_email__\" data-cfemail=\"f9ba8c8b90968c8ab2909d8aacaab98d919c9a96978f9c8b8a988d909697d79a9694\">[email\u00a0protected]<\/span>. Please tell us your name, age and the city where you live.<\/em><\/p>\n<p><em>And since curiosity has no age limit \u2013 adults, let us know what you\u2019re wondering, too. We won\u2019t be able to answer every question, but we will do our best.<\/em><!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img loading=\"lazy\" decoding=\"async\" style=\"border: none !important;margin: 0 !important;max-height: 1px !important;max-width: 1px !important;min-height: 1px !important;min-width: 1px !important;padding: 0 !important\" alt=\"The Conversation\" width=\"1\" height=\"1\" class=\"js-lazy\" src=\"https:\/\/counter.theconversation.com\/content\/162141\/count.gif?distributor=republish-lightbox-basic\"\/><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https:\/\/theconversation.com\/republishing-guidelines --><\/p>\n<p><noscript><img loading=\"lazy\" decoding=\"async\" style=\"border: none !important;margin: 0 !important;max-height: 1px !important;max-width: 1px !important;min-height: 1px !important;min-width: 1px !important;padding: 0 !important\" src=\"https:\/\/counter.theconversation.com\/content\/162141\/count.gif?distributor=republish-lightbox-basic\" alt=\"The Conversation\" width=\"1\" height=\"1\" class=\"\" srcset=\"\"\/><\/noscript><\/p>\n<p><em>Article by <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/theconversation.com\/profiles\/mario-borunda-1219071\">Mario Borunda<\/a>, Associate Professor of Physics, <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/theconversation.com\/institutions\/oklahoma-state-university-2062\">Oklahoma State University<\/a><\/em><\/p>\n<p><em>This article is republished from <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/theconversation.com\">The Conversation<\/a> under a Creative Commons license. Read the <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/theconversation.com\/why-does-gravity-pull-us-down-and-not-up-162141\">original article<\/a>.<\/em><\/p>\n<\/div>\n<p><script async src=\"\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMLG0nwswvr63Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\">For forums sites go to <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/forum.buradabiliyorum.com\/\" target=\"_blank\" rel=\"noopener\">Forum.BuradaBiliyorum.Com<\/a><\/span><\/strong>\n<\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more like this article, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/en.buradabiliyorum.com\/technology\/\" target=\"_blank\" rel=\"noopener\">Technology category.<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/thenextweb.com\/news\/gravity-pulls-us-down-not-up-syndication\" target=\"_blank\" rel=\"noopener\">Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;#Here\u2019s why gravity pulls us down and not up&#8221; Curious Kids is a series for children of all ages. If you have a question you\u2019d like an expert to answer, send it to [email\u00a0protected]. Why does gravity pull us down and not up? \u2013 Gracie, age 9, Brookline, Massachusetts Gravity is the reason things with&#8230;<\/p>\n","protected":false},"author":1,"featured_media":312130,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/img-cdn.tnwcdn.com\/image\/tnw?filter_last=1&fit=1280,640&url=https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/07\/man-1838330_1920.jpg&signature=ebaa2a39a21bb876300a5d93fbe3511b","fifu_image_alt":"","footnotes":""},"categories":[18],"tags":[],"class_list":["post-312129","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/312129","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=312129"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/312129\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/312130"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=312129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=312129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=312129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}