{"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=IQoJb3JpZ2luX2VjEMX%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJGMEQCICRQaTJ8Earq0AbU3Q8f41BiINLJ9edg2EFLoWqMuOgeAiAaMLgk0RD2%2BiaxmTnHp7Wis1KZYNShCwCrpBajdqxpZCrBBQiO%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F8BEAUaDDI3MzU3MDE5NTQzMyIMsXpVNK5CiQ%2BPH%2Fl2KpUF2vMfyT2DPxQQ61bfAWr%2BNG4IIN2G6u%2BvwVzXrUejjs%2Fu%2FvR4OWhDXdCXXO3B48rtWqW%2BtMTAwlJVwH15i8iuTx12%2BMclE1r5kADnEO5pL7mUxgd3iqBWJEXGBe3oTIuudmYlKQg8%2BVTSvLZVs%2BQHNj6ZLVWhUNfsv4BoWRabJ9AZ%2F5Enk2eb5wjBEKwI3EJ2WPnmQDAx7IsEemoKFNVzBQmyVUpJEXYe%2FPNF9UoIzBbDxCbBk1HgVOy9ErfaeKTYJxNjKMGTC%2Ft%2BrZYUQyIz%2BCm%2B8F4WsvNi5npucH7gFY7ywu3kK93wj95K3WuuGL5blYzHT3D0Uh%2Bb9wo5CI5mYJRfLaE6y%2B2oZpe2PbN8Y%2B6ZW4k7U54DMiWxn%2BXICpuj2jgWuuSADQ9TMg2RLRo%2FMdzaHrvEkJvJtD4Ah7jMgwP8g%2FPSowbXIlpxwIRg753QHpz1TaYROjD%2B%2BJXYAQ8hAcLQoCEtEQLwxUczntSvxHQHgBwln6ovzxH0EW%2B1XO4yEo%2FfILxYpbcN5OkPtspzNIfm1bQRjKgRnbbIuRSmvY5MuwubmTINDRyaoR%2F7%2BH1Cc5X%2BvTwFjlLAfzsOqRqH%2BDCf2wgTkG8QHUZkzDt7GIV47fNUHa5wonun9zFJSjrOAbNj6lk8ory2k2bdip%2F4xV4ZT1wtEzo2czKwsNm15WGHshnDssxjvQ641IyzghBdlwnwgGyco3G3kcidIeZnBG9yP7xjzCVJ%2B8x%2F%2BCRk2yFphX31iGOHA9hp3L73v26Es0RbqoLTCBjVl%2FbdBJ6or1pLWcBQrDkA893lRe8O%2BkZmO9fKc73Gqa828SRSzM6Kxh%2FEGELe851DDQBmHdlEQQf%2FGh1T579Th1uypMrOFTErDrxVFTDcz4LSBjqyAXZgtW2P9l1Gt7YVSiqXH5d54m2GmxSfcWjrm5iw4KkfmHiS8bikWaF45FNd%2BI8fkouj%2FmV7hAJYMK5CGPI%2BrdOKLFig03BnZrmSjOUeQac2SAAVi%2Bxot%2B%2Fs2F%2F1332F5%2F%2FtmU4S1J%2BhnqOEwToDxnQ%2Bz8v6IQBuwwOP47s5PmegGMG6tqgF7glh8l7DyJVa%2FkM4KFcuyIW1ZlTt6JD7PNq6TFpQIsohgp7bMY4jfMXewNc%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USMMWBMOQ%2F20260628%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260628T053323Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=9db038d76037abe54175e4f6700638d2b8ad7167ae6e09ebceba47b0f26b0bed 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=IQoJb3JpZ2luX2VjEMX%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJGMEQCICRQaTJ8Earq0AbU3Q8f41BiINLJ9edg2EFLoWqMuOgeAiAaMLgk0RD2%2BiaxmTnHp7Wis1KZYNShCwCrpBajdqxpZCrBBQiO%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F8BEAUaDDI3MzU3MDE5NTQzMyIMsXpVNK5CiQ%2BPH%2Fl2KpUF2vMfyT2DPxQQ61bfAWr%2BNG4IIN2G6u%2BvwVzXrUejjs%2Fu%2FvR4OWhDXdCXXO3B48rtWqW%2BtMTAwlJVwH15i8iuTx12%2BMclE1r5kADnEO5pL7mUxgd3iqBWJEXGBe3oTIuudmYlKQg8%2BVTSvLZVs%2BQHNj6ZLVWhUNfsv4BoWRabJ9AZ%2F5Enk2eb5wjBEKwI3EJ2WPnmQDAx7IsEemoKFNVzBQmyVUpJEXYe%2FPNF9UoIzBbDxCbBk1HgVOy9ErfaeKTYJxNjKMGTC%2Ft%2BrZYUQyIz%2BCm%2B8F4WsvNi5npucH7gFY7ywu3kK93wj95K3WuuGL5blYzHT3D0Uh%2Bb9wo5CI5mYJRfLaE6y%2B2oZpe2PbN8Y%2B6ZW4k7U54DMiWxn%2BXICpuj2jgWuuSADQ9TMg2RLRo%2FMdzaHrvEkJvJtD4Ah7jMgwP8g%2FPSowbXIlpxwIRg753QHpz1TaYROjD%2B%2BJXYAQ8hAcLQoCEtEQLwxUczntSvxHQHgBwln6ovzxH0EW%2B1XO4yEo%2FfILxYpbcN5OkPtspzNIfm1bQRjKgRnbbIuRSmvY5MuwubmTINDRyaoR%2F7%2BH1Cc5X%2BvTwFjlLAfzsOqRqH%2BDCf2wgTkG8QHUZkzDt7GIV47fNUHa5wonun9zFJSjrOAbNj6lk8ory2k2bdip%2F4xV4ZT1wtEzo2czKwsNm15WGHshnDssxjvQ641IyzghBdlwnwgGyco3G3kcidIeZnBG9yP7xjzCVJ%2B8x%2F%2BCRk2yFphX31iGOHA9hp3L73v26Es0RbqoLTCBjVl%2FbdBJ6or1pLWcBQrDkA893lRe8O%2BkZmO9fKc73Gqa828SRSzM6Kxh%2FEGELe851DDQBmHdlEQQf%2FGh1T579Th1uypMrOFTErDrxVFTDcz4LSBjqyAXZgtW2P9l1Gt7YVSiqXH5d54m2GmxSfcWjrm5iw4KkfmHiS8bikWaF45FNd%2BI8fkouj%2FmV7hAJYMK5CGPI%2BrdOKLFig03BnZrmSjOUeQac2SAAVi%2Bxot%2B%2Fs2F%2F1332F5%2F%2FtmU4S1J%2BhnqOEwToDxnQ%2Bz8v6IQBuwwOP47s5PmegGMG6tqgF7glh8l7DyJVa%2FkM4KFcuyIW1ZlTt6JD7PNq6TFpQIsohgp7bMY4jfMXewNc%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USMMWBMOQ%2F20260628%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260628T053323Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=0853e046b548a7b8c3103430e7930e7346f3c22ae98b6df7f0db35b5cef9a705 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=IQoJb3JpZ2luX2VjEMX%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJGMEQCICRQaTJ8Earq0AbU3Q8f41BiINLJ9edg2EFLoWqMuOgeAiAaMLgk0RD2%2BiaxmTnHp7Wis1KZYNShCwCrpBajdqxpZCrBBQiO%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F8BEAUaDDI3MzU3MDE5NTQzMyIMsXpVNK5CiQ%2BPH%2Fl2KpUF2vMfyT2DPxQQ61bfAWr%2BNG4IIN2G6u%2BvwVzXrUejjs%2Fu%2FvR4OWhDXdCXXO3B48rtWqW%2BtMTAwlJVwH15i8iuTx12%2BMclE1r5kADnEO5pL7mUxgd3iqBWJEXGBe3oTIuudmYlKQg8%2BVTSvLZVs%2BQHNj6ZLVWhUNfsv4BoWRabJ9AZ%2F5Enk2eb5wjBEKwI3EJ2WPnmQDAx7IsEemoKFNVzBQmyVUpJEXYe%2FPNF9UoIzBbDxCbBk1HgVOy9ErfaeKTYJxNjKMGTC%2Ft%2BrZYUQyIz%2BCm%2B8F4WsvNi5npucH7gFY7ywu3kK93wj95K3WuuGL5blYzHT3D0Uh%2Bb9wo5CI5mYJRfLaE6y%2B2oZpe2PbN8Y%2B6ZW4k7U54DMiWxn%2BXICpuj2jgWuuSADQ9TMg2RLRo%2FMdzaHrvEkJvJtD4Ah7jMgwP8g%2FPSowbXIlpxwIRg753QHpz1TaYROjD%2B%2BJXYAQ8hAcLQoCEtEQLwxUczntSvxHQHgBwln6ovzxH0EW%2B1XO4yEo%2FfILxYpbcN5OkPtspzNIfm1bQRjKgRnbbIuRSmvY5MuwubmTINDRyaoR%2F7%2BH1Cc5X%2BvTwFjlLAfzsOqRqH%2BDCf2wgTkG8QHUZkzDt7GIV47fNUHa5wonun9zFJSjrOAbNj6lk8ory2k2bdip%2F4xV4ZT1wtEzo2czKwsNm15WGHshnDssxjvQ641IyzghBdlwnwgGyco3G3kcidIeZnBG9yP7xjzCVJ%2B8x%2F%2BCRk2yFphX31iGOHA9hp3L73v26Es0RbqoLTCBjVl%2FbdBJ6or1pLWcBQrDkA893lRe8O%2BkZmO9fKc73Gqa828SRSzM6Kxh%2FEGELe851DDQBmHdlEQQf%2FGh1T579Th1uypMrOFTErDrxVFTDcz4LSBjqyAXZgtW2P9l1Gt7YVSiqXH5d54m2GmxSfcWjrm5iw4KkfmHiS8bikWaF45FNd%2BI8fkouj%2FmV7hAJYMK5CGPI%2BrdOKLFig03BnZrmSjOUeQac2SAAVi%2Bxot%2B%2Fs2F%2F1332F5%2F%2FtmU4S1J%2BhnqOEwToDxnQ%2Bz8v6IQBuwwOP47s5PmegGMG6tqgF7glh8l7DyJVa%2FkM4KFcuyIW1ZlTt6JD7PNq6TFpQIsohgp7bMY4jfMXewNc%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USMMWBMOQ%2F20260628%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260628T053323Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=a518c046115b8a1a6bc9317a7f25104af6b68b09ad628ae8e2422dcad5246715 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}]}}