{"id":76,"date":"2014-11-11T10:14:27","date_gmt":"2014-11-11T10:14:27","guid":{"rendered":"http:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysn5u1\/?page_id=76"},"modified":"2014-11-11T10:14:32","modified_gmt":"2014-11-11T10:14:32","slug":"cosmology-summar-s3","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysn5u1\/cosmology-summar-s3\/","title":{"rendered":"Cosmology Summary (S3)"},"content":{"rendered":"<p style=\"text-align: left\"><a href=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphysn5u1\/uploads\/sites\/5146\/2014\/11\/Definitions.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-54\" title=\"Definitions\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphysn5u1\/uploads\/sites\/5146\/2014\/11\/Definitions.png\" alt=\"\" width=\"634\" height=\"284\" srcset=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphysn5u1\/uploads\/sites\/5146\/2014\/11\/Definitions.png 905w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/hyndsecphysn5u1\/uploads\/sites\/5146\/2014\/11\/Definitions-300x134.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEN%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJGMEQCIEfR9YXyDb7a6YWLuhYhYFL2GGo%2BIiKr9n2hrrvYo3GVAiBh9BouV%2BUZ%2FSWCmVgpUfMgT8IB8FL%2B1NhhwFST%2FAtISyrCBQio%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F8BEAUaDDI3MzU3MDE5NTQzMyIMRz7j0N0WAZkcf2q5KpYFif25JOw6qDM8m1x0MVLM2B8lPO48oLauxye3c3anHhgnHVM2Bu9ZGb5HFYRdxT9Ruo4LcuOx84gRN3cm2ckBthaVwQEN9H3QG3OOvzgTzpuEOgUtOjhDqii6JZe9RkCw75N6FwD80gMEJ%2Be0%2BdwJBbKspIlSPn2OeikCg%2Fj0wkAZPw2hRcSdpE%2FANUnk%2Bx%2FtxuvGVzTJHuoNFAgF%2BdP6qlXiCHQAX1YCb6BmCTM4THe1W1TC8RQ43oXu6Qw7oD3VKHI1Rfw9nhGDMWlKk5p%2FQ4LkSA88ejhEyMm07AfjDuaSJeEiz4a4PQ3aS5NhHQ414qYvz0VYfYd0LytNPCPxfaRB1MfI1SZ2iqmzbtwz9lhRxzFXdlnsaCcb2BArxL6ROA5MzyTo9y3HS8JVH6E%2FG21XvcO0Rbv5xSBCFz6pR9a2SwIiZ46iN2iqDWyFBLXX%2F02T9yEwKdk%2F3nQ2xCJg1GP98gbc6DpdvhgyACJ84TEAweteIsl42I0XANQKZXZuYf7PZY5bk79q4KO1QV1rNHhCstNSswKIkcsuR47tihVVORZaJt7g5FhR%2FVzqdPXfFcL9Eo10kjv8HdQGIBC9A0ktVBmdSlQMWHwoPWWpfpQGhnt9iZP87ImR8CE02pOCQCxGP%2FJnss25mABT%2BFTVSQjo4Yy8YRM5hl9k4shSBm2nm8a1%2BdPXCIEuO17XeXArBtG1YeSzg3%2FCbjpUerzhvaUc0IzLq87IBU900C2PWXgt4geL4e2JHE5buBg4%2Fi809xvbcqaNieJ4ZHaacdzv951cRAGXV3%2FeUx%2FuLZ2r44t7rEOHd2MRwoRsJP%2F65QiCw3ymxwcOg5ytSrP9ZINnc1e8md744n6ojtSVhIZeE%2FY3ZxPpDMQwzOyX0QY6sgExARWxf6PLkLMPwp1cT84Jr5a6Xy97UZmsVkgtNqo63BfVXTDif9o6tQN8mOEBl8J2%2BkPGbi5wFyNyNJ%2B7PJQ7X5ZxwT5UFC0HrORbakgu1hsMjZ3Fr939reO0UjwoCQMEhKcBuBQhvThwoBEK5JCQ6auvm63ptKaj%2F6BSP7CGRe9qlxa7fbSVMsNQSvYDZ4RpiXUnvEpjj42dxts3YB0yihN29fgQsuqk1xbCSA3mThL6&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47U7VIUSQ3K%2F20260607%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260607T225655Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=d164350b6d88de0aea37e0433ba53588c190e8896cd8e0eca661ccd8d5ae9225 300w\" sizes=\"auto, (max-width: 634px) 85vw, 634px\" \/><\/a><\/p>\n<h1>Light year <\/h1>\n<p>This is the <strong>distance<\/strong> that light can travel in one year.  We use light years to describe distances in space physics because otherwise the numbers would be ridiculously large.<\/p>\n<p style=\"text-align: center\"><a href=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphysn5u1\/uploads\/sites\/5146\/2014\/11\/Picture3.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-61\" title=\"Picture3\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphysn5u1\/uploads\/sites\/5146\/2014\/11\/Picture3.png\" alt=\"\" width=\"597\" height=\"155\" srcset=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphysn5u1\/uploads\/sites\/5146\/2014\/11\/Picture3.png 995w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/hyndsecphysn5u1\/uploads\/sites\/5146\/2014\/11\/Picture3-300x78.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEN%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJGMEQCIEfR9YXyDb7a6YWLuhYhYFL2GGo%2BIiKr9n2hrrvYo3GVAiBh9BouV%2BUZ%2FSWCmVgpUfMgT8IB8FL%2B1NhhwFST%2FAtISyrCBQio%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F8BEAUaDDI3MzU3MDE5NTQzMyIMRz7j0N0WAZkcf2q5KpYFif25JOw6qDM8m1x0MVLM2B8lPO48oLauxye3c3anHhgnHVM2Bu9ZGb5HFYRdxT9Ruo4LcuOx84gRN3cm2ckBthaVwQEN9H3QG3OOvzgTzpuEOgUtOjhDqii6JZe9RkCw75N6FwD80gMEJ%2Be0%2BdwJBbKspIlSPn2OeikCg%2Fj0wkAZPw2hRcSdpE%2FANUnk%2Bx%2FtxuvGVzTJHuoNFAgF%2BdP6qlXiCHQAX1YCb6BmCTM4THe1W1TC8RQ43oXu6Qw7oD3VKHI1Rfw9nhGDMWlKk5p%2FQ4LkSA88ejhEyMm07AfjDuaSJeEiz4a4PQ3aS5NhHQ414qYvz0VYfYd0LytNPCPxfaRB1MfI1SZ2iqmzbtwz9lhRxzFXdlnsaCcb2BArxL6ROA5MzyTo9y3HS8JVH6E%2FG21XvcO0Rbv5xSBCFz6pR9a2SwIiZ46iN2iqDWyFBLXX%2F02T9yEwKdk%2F3nQ2xCJg1GP98gbc6DpdvhgyACJ84TEAweteIsl42I0XANQKZXZuYf7PZY5bk79q4KO1QV1rNHhCstNSswKIkcsuR47tihVVORZaJt7g5FhR%2FVzqdPXfFcL9Eo10kjv8HdQGIBC9A0ktVBmdSlQMWHwoPWWpfpQGhnt9iZP87ImR8CE02pOCQCxGP%2FJnss25mABT%2BFTVSQjo4Yy8YRM5hl9k4shSBm2nm8a1%2BdPXCIEuO17XeXArBtG1YeSzg3%2FCbjpUerzhvaUc0IzLq87IBU900C2PWXgt4geL4e2JHE5buBg4%2Fi809xvbcqaNieJ4ZHaacdzv951cRAGXV3%2FeUx%2FuLZ2r44t7rEOHd2MRwoRsJP%2F65QiCw3ymxwcOg5ytSrP9ZINnc1e8md744n6ojtSVhIZeE%2FY3ZxPpDMQwzOyX0QY6sgExARWxf6PLkLMPwp1cT84Jr5a6Xy97UZmsVkgtNqo63BfVXTDif9o6tQN8mOEBl8J2%2BkPGbi5wFyNyNJ%2B7PJQ7X5ZxwT5UFC0HrORbakgu1hsMjZ3Fr939reO0UjwoCQMEhKcBuBQhvThwoBEK5JCQ6auvm63ptKaj%2F6BSP7CGRe9qlxa7fbSVMsNQSvYDZ4RpiXUnvEpjj42dxts3YB0yihN29fgQsuqk1xbCSA3mThL6&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47U7VIUSQ3K%2F20260607%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260607T225655Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=aee559f2efc727a3f20634bcf483139b948cf146a3c5a99bffc6a3b6296e5acc 300w\" sizes=\"auto, (max-width: 597px) 85vw, 597px\" \/><\/a><\/p>\n<p>The following table give some information about the time taken for light to cover different distances (interest only \u2013 no need to learn values)<\/p>\n<p style=\"text-align: center\"><a href=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphysn5u1\/uploads\/sites\/5146\/2014\/11\/Picture4.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-62\" title=\"Picture4\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphysn5u1\/uploads\/sites\/5146\/2014\/11\/Picture4.png\" alt=\"\" width=\"383\" height=\"120\" srcset=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hyndsecphysn5u1\/uploads\/sites\/5146\/2014\/11\/Picture4.png 639w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/hyndsecphysn5u1\/uploads\/sites\/5146\/2014\/11\/Picture4-300x93.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEN%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJGMEQCIEfR9YXyDb7a6YWLuhYhYFL2GGo%2BIiKr9n2hrrvYo3GVAiBh9BouV%2BUZ%2FSWCmVgpUfMgT8IB8FL%2B1NhhwFST%2FAtISyrCBQio%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F8BEAUaDDI3MzU3MDE5NTQzMyIMRz7j0N0WAZkcf2q5KpYFif25JOw6qDM8m1x0MVLM2B8lPO48oLauxye3c3anHhgnHVM2Bu9ZGb5HFYRdxT9Ruo4LcuOx84gRN3cm2ckBthaVwQEN9H3QG3OOvzgTzpuEOgUtOjhDqii6JZe9RkCw75N6FwD80gMEJ%2Be0%2BdwJBbKspIlSPn2OeikCg%2Fj0wkAZPw2hRcSdpE%2FANUnk%2Bx%2FtxuvGVzTJHuoNFAgF%2BdP6qlXiCHQAX1YCb6BmCTM4THe1W1TC8RQ43oXu6Qw7oD3VKHI1Rfw9nhGDMWlKk5p%2FQ4LkSA88ejhEyMm07AfjDuaSJeEiz4a4PQ3aS5NhHQ414qYvz0VYfYd0LytNPCPxfaRB1MfI1SZ2iqmzbtwz9lhRxzFXdlnsaCcb2BArxL6ROA5MzyTo9y3HS8JVH6E%2FG21XvcO0Rbv5xSBCFz6pR9a2SwIiZ46iN2iqDWyFBLXX%2F02T9yEwKdk%2F3nQ2xCJg1GP98gbc6DpdvhgyACJ84TEAweteIsl42I0XANQKZXZuYf7PZY5bk79q4KO1QV1rNHhCstNSswKIkcsuR47tihVVORZaJt7g5FhR%2FVzqdPXfFcL9Eo10kjv8HdQGIBC9A0ktVBmdSlQMWHwoPWWpfpQGhnt9iZP87ImR8CE02pOCQCxGP%2FJnss25mABT%2BFTVSQjo4Yy8YRM5hl9k4shSBm2nm8a1%2BdPXCIEuO17XeXArBtG1YeSzg3%2FCbjpUerzhvaUc0IzLq87IBU900C2PWXgt4geL4e2JHE5buBg4%2Fi809xvbcqaNieJ4ZHaacdzv951cRAGXV3%2FeUx%2FuLZ2r44t7rEOHd2MRwoRsJP%2F65QiCw3ymxwcOg5ytSrP9ZINnc1e8md744n6ojtSVhIZeE%2FY3ZxPpDMQwzOyX0QY6sgExARWxf6PLkLMPwp1cT84Jr5a6Xy97UZmsVkgtNqo63BfVXTDif9o6tQN8mOEBl8J2%2BkPGbi5wFyNyNJ%2B7PJQ7X5ZxwT5UFC0HrORbakgu1hsMjZ3Fr939reO0UjwoCQMEhKcBuBQhvThwoBEK5JCQ6auvm63ptKaj%2F6BSP7CGRe9qlxa7fbSVMsNQSvYDZ4RpiXUnvEpjj42dxts3YB0yihN29fgQsuqk1xbCSA3mThL6&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47U7VIUSQ3K%2F20260607%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260607T225655Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=bec9f3a89134afc8d2f260e80d88154c1744de8de5eea23eab5a34f0fbbd7e98 300w\" sizes=\"auto, (max-width: 383px) 85vw, 383px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Light year This is the distance that light can travel in one year. We use light years to describe distances in space physics because otherwise the numbers would be ridiculously large. The following table give some information about the time taken for light to cover different distances (interest only \u2013 no need to learn values)<\/p>\n","protected":false},"author":2454,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-76","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysn5u1\/wp-json\/wp\/v2\/pages\/76","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysn5u1\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysn5u1\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysn5u1\/wp-json\/wp\/v2\/users\/2454"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysn5u1\/wp-json\/wp\/v2\/comments?post=76"}],"version-history":[{"count":2,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysn5u1\/wp-json\/wp\/v2\/pages\/76\/revisions"}],"predecessor-version":[{"id":78,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysn5u1\/wp-json\/wp\/v2\/pages\/76\/revisions\/78"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysn5u1\/wp-json\/wp\/v2\/media?parent=76"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}