{"id":5210,"date":"2024-11-30T10:24:01","date_gmt":"2024-11-30T02:24:01","guid":{"rendered":"https:\/\/nullthought.net\/?p=5210"},"modified":"2024-11-30T10:24:03","modified_gmt":"2024-11-30T02:24:03","slug":"%e5%a6%82%e6%9e%9c%e5%ae%87%e5%ae%99%e5%9c%a8%e8%86%a8%e8%83%80%ef%bc%8c%e5%ae%83%e5%9c%a8%e8%86%a8%e8%83%80%e5%88%b0%e5%93%aa%e9%87%8c%e5%8e%bb%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/nullthought.net\/?p=5210","title":{"rendered":"\u5982\u679c\u5b87\u5b99\u5728\u81a8\u80c0\uff0c\u5b83\u5728\u81a8\u80c0\u5230\u54ea\u91cc\u53bb\uff1f"},"content":{"rendered":"\n<p>\u8fd9\u662f\u4e00\u4e2a\u6df1\u523b\u7684\u95ee\u9898\uff0c\u6d89\u53ca\u5230\u5bf9\u7a7a\u95f4\u3001\u65f6\u95f4\u4ee5\u53ca\u5b87\u5b99\u672c\u8d28\u7684\u7406\u89e3\u3002<\/p>\n\n\n\n<h6 class=\"wp-block-heading\">1. <strong>\u5b87\u5b99\u5e76\u6ca1\u6709\u201c\u81a8\u80c0\u5230\u201d\u67d0\u4e2a\u5730\u65b9<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b87\u5b99\u7684\u81a8\u80c0\u5e76\u4e0d\u50cf\u6c14\u7403\u5145\u6c14\u90a3\u6837\u81a8\u80c0\u5230\u67d0\u4e2a\u9884\u5148\u5b58\u5728\u7684\u7a7a\u95f4\u4e2d\u3002\u76f8\u53cd\uff0c\u5b83\u6307\u7684\u662f<strong>\u7a7a\u95f4\u672c\u8eab\u5728\u62c9\u4f38<\/strong>\u3002<\/li>\n\n\n\n<li>\u5728\u5b87\u5b99\u5b66\u4e2d\uff0c\u5b87\u5b99\u901a\u5e38\u88ab\u8ba4\u4e3a\u662f\u65e0\u9650\u7684\u3002\u5982\u679c\u5b87\u5b99\u662f\u65e0\u9650\u7684\uff0c\u5b83\u5c31\u6ca1\u6709\u8fb9\u754c\uff0c\u4e5f\u4e0d\u9700\u8981\u4e00\u4e2a\u201c\u5bb9\u5668\u201d\u6765\u81a8\u80c0\u3002<\/li>\n\n\n\n<li>\u5373\u4f7f\u5b87\u5b99\u662f\u6709\u9650\u7684\uff0c\u5b83\u7684\u81a8\u80c0\u4e5f\u662f\u81ea\u5305\u542b\u7684\u3002\u901a\u8fc7\u65f6\u7a7a\u7684\u5f2f\u66f2\uff0c\u5b87\u5b99\u53ef\u4ee5\u5728\u4e0d\u9700\u8981\u5916\u90e8\u7a7a\u95f4\u7684\u60c5\u51b5\u4e0b\u81a8\u80c0\u3002<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\">2. <strong>\u7406\u89e3\u81a8\u80c0<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b87\u5b99\u7684\u81a8\u80c0\u662f\u901a\u8fc7<strong>\u7a7a\u95f4\u7684\u5ea6\u91cf\u81a8\u80c0<\/strong>\uff08metric expansion\uff09\u6765\u63cf\u8ff0\u7684\uff0c\u8fd9\u7531\u7231\u56e0\u65af\u5766\u7684\u5e7f\u4e49\u76f8\u5bf9\u8bba\u6240\u51b3\u5b9a\u3002<\/li>\n\n\n\n<li>\u661f\u7cfb\u5f7c\u6b64\u8fdc\u79bb\u5e76\u4e0d\u662f\u56e0\u4e3a\u5b83\u4eec\u5728\u7a7a\u95f4\u4e2d\u79fb\u52a8\uff0c\u800c\u662f\u56e0\u4e3a\u5b83\u4eec\u4e4b\u95f4\u7684\u7a7a\u95f4\u5728\u589e\u5927\u3002\u8fd9\u7c7b\u4f3c\u4e8e\u6c14\u7403\u8868\u9762\u4e0a\u7684\u70b9\u5728\u6c14\u7403\u5145\u6c14\u65f6\u5f7c\u6b64\u8fdc\u79bb\u3002<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\">3. <strong>\u4e8c\u7ef4\u8868\u9762\u7c7b\u6bd4<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u60f3\u8c61\u4e00\u4e2a\u751f\u6d3b\u5728\u6c14\u7403\u8868\u9762\u4e0a\u7684\u4e8c\u7ef4\u751f\u7269\u3002\u968f\u7740\u6c14\u7403\u81a8\u80c0\uff0c\u8868\u9762\uff08\u5bf9\u4e8e\u4e8c\u7ef4\u751f\u7269\u6765\u8bf4\u7684\u201c\u5b87\u5b99\u201d\uff09\u5728\u6269\u5c55\u3002\u4e8c\u7ef4\u751f\u7269\u4e0d\u4f1a\u770b\u5230\u6c14\u7403\u201c\u81a8\u80c0\u5230\u201d\u54ea\u91cc\uff0c\u5b83\u53ea\u80fd\u89c2\u5bdf\u5230\u8868\u9762\u79ef\u7684\u589e\u5927\u3002<\/li>\n\n\n\n<li>\u7c7b\u4f3c\u5730\uff0c\u6211\u4eec\u751f\u6d3b\u5728\u4e09\u7ef4\u5b87\u5b99\u4e2d\uff0c\u89c2\u5bdf\u5230\u7684\u81a8\u80c0\u662f\u5185\u90e8\u7684\uff0c\u800c\u4e0d\u662f\u5411\u67d0\u4e2a\u9ad8\u7ef4\u7a7a\u95f4\u79fb\u52a8\u3002<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\">4. <strong>\u9ad8\u7ef4\u7a7a\u95f4\u7684\u53ef\u80fd\u6027<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e00\u4e9b\u7406\u8bba\uff08\u4f8b\u5982\u5f26\u7406\u8bba\uff09\u63d0\u51fa\u4e86\u66f4\u9ad8\u7ef4\u7a7a\u95f4\u7684\u5b58\u5728\uff0c\u8ba4\u4e3a\u6211\u4eec\u7684\u5b87\u5b99\u53ef\u80fd\u662f\u4e00\u4e2a\u201c\u819c\u201d\uff08brane\uff09\uff0c\u5b58\u5728\u4e8e\u66f4\u9ad8\u7ef4\u7a7a\u95f4\u4e2d\u3002\u4ece\u8fd9\u79cd\u89c2\u70b9\u6765\u770b\uff0c\u6211\u4eec\u7684\u5b87\u5b99\u53ef\u80fd\u5728\u81a8\u80c0\u5230\u9ad8\u7ef4\u7a7a\u95f4\u4e2d\uff0c\u4f46\u8fd9\u4e9b\u7406\u8bba\u662f\u7eaf\u7cb9\u5047\u8bbe\u7684\uff0c\u76ee\u524d\u65e0\u6cd5\u89c2\u6d4b\u5230\u3002<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\">5. <strong>\u89c2\u6d4b\u73b0\u8c61<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6211\u4eec\u901a\u8fc7\u89c2\u6d4b\u5230\u7684\u8fdc\u65b9\u661f\u7cfb\u7684<strong>\u7ea2\u79fb<\/strong>\uff08redshift\uff09\u786e\u8ba4\u4e86\u5b87\u5b99\u7684\u81a8\u80c0\u3002\u8fd9\u8868\u660e\u7a7a\u95f4\u5728\u62c9\u4f38\uff0c\u800c\u8fd9\u79cd\u81a8\u80c0\u7684\u8fc7\u7a0b\u53ef\u4ee5\u901a\u8fc7\u5e7f\u4e49\u76f8\u5bf9\u8bba\u7684\u65b9\u7a0b\u5f88\u597d\u5730\u63cf\u8ff0\uff0c\u4e0d\u9700\u8981\u5047\u8bbe\u5b87\u5b99\u81a8\u80c0\u5230\u67d0\u4e2a\u5916\u90e8\u7a7a\u95f4\u4e2d\u3002<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\">6. <strong>\u54f2\u5b66\u5c42\u9762\u7684\u601d\u8003<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u63d0\u51fa\u201c\u5b87\u5b99\u81a8\u80c0\u5230\u54ea\u91cc\u53bb\u201d\u8fd9\u4e00\u95ee\u9898\uff0c\u53ef\u80fd\u9690\u542b\u7740\u4e00\u4e2a\u5916\u90e8\u7a7a\u95f4\u7684\u9884\u8bbe\uff0c\u4f46\u73b0\u4ee3\u5b87\u5b99\u5b66\u7684\u6570\u5b66\u6846\u67b6\u5e76\u4e0d\u9700\u8981\u8fd9\u79cd\u5047\u8bbe\u3002<\/li>\n\n\n\n<li>\u5b87\u5b99\u6ca1\u6709\u4f20\u7edf\u610f\u4e49\u4e0a\u7684\u201c\u8fb9\u7f18\u201d\u6216\u201c\u5916\u90e8\u201d\uff1b\u76f8\u53cd\uff0c\u65f6\u7a7a\u672c\u8eab\u6784\u6210\u4e86\u5b87\u5b99\u7684\u4e00\u5207\u3002<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>\u7ed3\u8bba<\/strong><\/h6>\n\n\n\n<p>\u5b87\u5b99\u7684\u81a8\u80c0\u662f\u65f6\u7a7a\u672c\u8eab\u7684\u5c5e\u6027\u3002\u5b83\u5e76\u4e0d\u662f\u81a8\u80c0\u5230\u67d0\u4e2a\u9884\u5148\u5b58\u5728\u7684\u7a7a\u95f4\uff0c\u800c\u662f\u5728\u81a8\u80c0\u7684\u8fc7\u7a0b\u4e2d\u521b\u9020\u66f4\u591a\u7684\u7a7a\u95f4\u3002\u5728\u73b0\u4ee3\u5b87\u5b99\u5b66\u7684\u6846\u67b6\u4e2d\uff0c\u201c\u5916\u90e8\u201d\u6216\u201c\u81a8\u80c0\u5230\u54ea\u91cc\u201d\u8fd9\u6837\u7684\u6982\u5ff5\u5e76\u4e0d\u9002\u7528\uff0c\u56e0\u4e3a\u5b87\u5b99\u5305\u542b\u4e86\u6240\u6709\u7684\u7a7a\u95f4\u548c\u65f6\u95f4\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"593\" height=\"593\" src=\"https:\/\/nullthought.net\/wp-content\/uploads\/2024\/11\/If_the_Universe_is_Expanding_What_is_it_Expanding_into.webp\" alt=\"\" class=\"wp-image-5211\" srcset=\"https:\/\/nullthought.net\/wp-content\/uploads\/2024\/11\/If_the_Universe_is_Expanding_What_is_it_Expanding_into.webp 593w, https:\/\/nullthought.net\/wp-content\/uploads\/2024\/11\/If_the_Universe_is_Expanding_What_is_it_Expanding_into-300x300.webp 300w, https:\/\/nullthought.net\/wp-content\/uploads\/2024\/11\/If_the_Universe_is_Expanding_What_is_it_Expanding_into-150x150.webp 150w, https:\/\/nullthought.net\/wp-content\/uploads\/2024\/11\/If_the_Universe_is_Expanding_What_is_it_Expanding_into-120x120.webp 120w\" sizes=\"auto, (max-width: 593px) 100vw, 593px\" \/><figcaption class=\"wp-element-caption\">Created by Midjourney<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h5 class=\"wp-block-heading\">If the Universe is Expanding, What is it Expanding Into?<\/h5>\n\n\n\n<p>The question, &#8220;What is the universe expanding into?&#8221; is a profound one and requires a careful consideration of the nature of space, time, and the universe itself. <\/p>\n\n\n\n<h6 class=\"wp-block-heading\">1. <strong>The Universe Isn\u2019t Expanding \u201cInto\u201d Anything<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The expansion of the universe is not like a balloon inflating into a pre-existing space. Instead, it refers to the stretching of space itself.<\/li>\n\n\n\n<li>In cosmology, the universe is often considered to be infinite. If the universe is infinite, it has no boundary and doesn\u2019t need a \u201ccontainer\u201d to expand into.<\/li>\n\n\n\n<li>For a finite universe, the expansion is still self-contained. The curvature of space-time allows it to expand without requiring an external space.<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\">2. <strong>Understanding the Expansion<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The expansion is described by the <strong>metric expansion of space<\/strong>, governed by Einstein\u2019s General Theory of Relativity.<\/li>\n\n\n\n<li>Galaxies are moving apart not because they are traveling through space, but because the space between them is increasing. This is like points on the surface of a balloon moving apart as the balloon inflates.<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\">3. <strong>Analogy with a 2D Surface<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Imagine a 2D being living on the surface of a balloon. As the balloon inflates, the surface (the entire &#8220;universe&#8221; for the 2D being) stretches. The 2D being wouldn\u2019t see the balloon expanding &#8220;into&#8221; anything; it would only observe the surface area increasing.<\/li>\n\n\n\n<li>Similarly, we exist in a 3D universe and perceive its expansion internally, not as moving into a higher-dimensional space.<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\">4. <strong>Higher-Dimensional Space<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Some speculative theories, such as string theory, propose the existence of higher-dimensional spaces in which our universe could exist as a &#8220;brane&#8221; (a 3D object in higher-dimensional space). In this context, our universe could, hypothetically, expand into higher-dimensional space, but this remains purely theoretical and unobservable.<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\">5. <strong>Observable Effects<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li>What we observe in practice is the <strong>redshift<\/strong> of light from distant galaxies, which provides evidence for the expansion of space. This expansion is well-modeled by the equations of General Relativity and does not require the universe to expand into something external.<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\">6. <strong>Philosophical Implications<\/strong><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Asking &#8220;what is the universe expanding into&#8221; might assume a preconceived notion of external space, which isn\u2019t required by the mathematics of cosmology.<\/li>\n\n\n\n<li>The &#8220;edge&#8221; or &#8220;outside&#8221; of the universe doesn\u2019t exist in any conventional sense; instead, space-time itself is all there is.<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\">Conclusion<\/h6>\n\n\n\n<p>The universe\u2019s expansion is a property of the space-time fabric itself. It doesn&#8217;t expand into a pre-existing space but rather creates more space as it grows. The concepts of \u201coutside\u201d or \u201cinto\u201d do not apply in the framework of modern cosmology, as the universe includes everything, including the space and time we inhabit.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u662f\u4e00\u4e2a\u6df1\u523b\u7684\u95ee\u9898\uff0c\u6d89\u53ca\u5230\u5bf9\u7a7a\u95f4\u3001\u65f6\u95f4\u4ee5\u53ca\u5b87\u5b99\u672c\u8d28\u7684\u7406\u89e3\u3002 1. \u5b87\u5b99\u5e76\u6ca1\u6709\u201c\u81a8\u80c0\u5230\u201d\u67d0\u4e2a\u5730\u65b9 2. \u7406\u89e3\u81a8\u80c0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[2,36],"tags":[78,30,71],"class_list":["post-5210","post","type-post","status-publish","format-standard","hentry","category-2","category-36","tag-philosophy","tag-space","tag-physics"],"rttpg_featured_image_url":null,"rttpg_author":{"display_name":"NullThought","author_link":"https:\/\/nullthought.net\/?author=1"},"rttpg_comment":0,"rttpg_category":"<a href=\"https:\/\/nullthought.net\/?cat=2\" rel=\"category\">\u6742\u8c08<\/a> <a href=\"https:\/\/nullthought.net\/?cat=36\" rel=\"category\">\u79d1\u5b66<\/a>","rttpg_excerpt":"\u8fd9\u662f\u4e00\u4e2a\u6df1\u523b\u7684\u95ee\u9898\uff0c\u6d89\u53ca\u5230\u5bf9\u7a7a\u95f4\u3001\u65f6\u95f4\u4ee5\u53ca\u5b87\u5b99\u672c\u8d28\u7684\u7406\u89e3\u3002 1. \u5b87\u5b99\u5e76\u6ca1\u6709\u201c\u81a8\u80c0\u5230\u201d\u67d0\u4e2a\u5730\u65b9 2. \u7406\u89e3\u81a8\u80c0&hellip;","_links":{"self":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts\/5210","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5210"}],"version-history":[{"count":1,"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts\/5210\/revisions"}],"predecessor-version":[{"id":5212,"href":"https:\/\/nullthought.net\/index.php?rest_route=\/wp\/v2\/posts\/5210\/revisions\/5212"}],"wp:attachment":[{"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5210"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5210"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nullthought.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5210"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}