{"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 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=IQoJb3JpZ2luX2VjEIb%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQC7nAOanskFKHh3erAZZdaxCdlMLY33Fq1U60IXbSJFbwIgN05ixJHpUhO8MPrwnIRx8wZGj21NYCF3GdPT7IUqgXQquAUIThAFGgwyNzM1NzAxOTU0MzMiDHxENPPktj1cYCrNNSqVBYnIjRCJJP05gp0uCYTKSpKLskZju7VxlDIw0F8bJxLFM1IohgMBR20Crc0X%2BSVWVFQELwWH%2F9d3X8ooWxXEusj4z5CSukuQQe3WX1BwN52CPFKuhcFQvj6hnBnPXWn1nkp3SdAN4wubxlhx8%2Fju%2F3M1ZLNnXBsW8ASAqjN0s%2BCDSNW4oJMucDWFYaoJRK8jpm0gTtohsPBkjrOwXQxNLGvtcMQE5x%2FDFGeeLK64i5mN6d4wfzcdtNzXJ9Dv%2FiP%2Btk%2Bj7MOwsrr8Qj5dJK4zCYeQUhQQZ49xtjo1K%2BreQZd5F2pvSwJJGAXH0bNTVDmAMfqsuIfh0Mky%2BX%2BlnkfASLIp6Sv%2BtLfqwrMzcVVdffOHBrX2wVDAiZKIjR6YA%2BttiLzCtrVfd%2FWegQh9M04HlYZ4Gdnt8rpuqVTr7JA18I2aC87Iim9o6YTT48pcA1jTokfcoYbwIqWve0kNhNf2jkyfPnrDPVyL%2BMIbKAh1vfYWY9HAY99Phv3%2B0p7%2FnmMwkJQsGToXHg2P4gX4Wzmm1UB%2Bydg61GWM9nmqW3bMXmztuh%2BYbpBC9e4Pn7VBZoD1fpcLlykPAnF72h6CMKEwdvNXW1l%2BpZ45Hhnwt4GDm9mVbNAkAanue1RX7r0954X7o%2Bjh0kUGu66GlJ00AZXdBxqVa0zCwVtaqnc83xBxAF9yyb3JalsXbraCf6JVKYgCz5sa7ZFAY50e%2BmYeTEG9Q76e9a7Uavas%2FMQsVa0J729lmgqArFI7FVx0BqKjrK4TVF7kkJ9pgXDgHIY%2FNCM%2BULDSeebt4qTEuQn6HYINwuZ0Ur3uQ6mFzpMEgZg8XUxSU7wDlOXDPMiC1vIendQFKbJSm9SiXmJcVD9iI0U%2BpxUGRjfjR9YwxJTG1AY6sQE933ZL9O5%2BUNNJZo5xF7AT%2Fe4%2FZZ82atNNMv4TH3P6JRB93rFelemxh93Oy2WtjJUeCt%2FYmdO5dJWKiTzAQS09lauJIl61dT9S%2BTx%2B71BKXHBuUn7KV%2BGuRCWoynpLGRBFaDrtBmuFdgKKFXKnB28Lne2GIWEQeKfkqF5OHyoPFzj%2B%2FC%2FrPZHSLbi721CNjjyqGhmdUX4NQf%2BQXEICgUcLohEcz5lE7Qf5ZTaPQSQZVUI%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47U5XLZ3DXD%2F20260828%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260828T135106Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=4b9dc8da4755c730f2746c286c13bd94170be1164bb93a94961133b84b1c2c7f 300w\" sizes=\"(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 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=IQoJb3JpZ2luX2VjEIb%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQC7nAOanskFKHh3erAZZdaxCdlMLY33Fq1U60IXbSJFbwIgN05ixJHpUhO8MPrwnIRx8wZGj21NYCF3GdPT7IUqgXQquAUIThAFGgwyNzM1NzAxOTU0MzMiDHxENPPktj1cYCrNNSqVBYnIjRCJJP05gp0uCYTKSpKLskZju7VxlDIw0F8bJxLFM1IohgMBR20Crc0X%2BSVWVFQELwWH%2F9d3X8ooWxXEusj4z5CSukuQQe3WX1BwN52CPFKuhcFQvj6hnBnPXWn1nkp3SdAN4wubxlhx8%2Fju%2F3M1ZLNnXBsW8ASAqjN0s%2BCDSNW4oJMucDWFYaoJRK8jpm0gTtohsPBkjrOwXQxNLGvtcMQE5x%2FDFGeeLK64i5mN6d4wfzcdtNzXJ9Dv%2FiP%2Btk%2Bj7MOwsrr8Qj5dJK4zCYeQUhQQZ49xtjo1K%2BreQZd5F2pvSwJJGAXH0bNTVDmAMfqsuIfh0Mky%2BX%2BlnkfASLIp6Sv%2BtLfqwrMzcVVdffOHBrX2wVDAiZKIjR6YA%2BttiLzCtrVfd%2FWegQh9M04HlYZ4Gdnt8rpuqVTr7JA18I2aC87Iim9o6YTT48pcA1jTokfcoYbwIqWve0kNhNf2jkyfPnrDPVyL%2BMIbKAh1vfYWY9HAY99Phv3%2B0p7%2FnmMwkJQsGToXHg2P4gX4Wzmm1UB%2Bydg61GWM9nmqW3bMXmztuh%2BYbpBC9e4Pn7VBZoD1fpcLlykPAnF72h6CMKEwdvNXW1l%2BpZ45Hhnwt4GDm9mVbNAkAanue1RX7r0954X7o%2Bjh0kUGu66GlJ00AZXdBxqVa0zCwVtaqnc83xBxAF9yyb3JalsXbraCf6JVKYgCz5sa7ZFAY50e%2BmYeTEG9Q76e9a7Uavas%2FMQsVa0J729lmgqArFI7FVx0BqKjrK4TVF7kkJ9pgXDgHIY%2FNCM%2BULDSeebt4qTEuQn6HYINwuZ0Ur3uQ6mFzpMEgZg8XUxSU7wDlOXDPMiC1vIendQFKbJSm9SiXmJcVD9iI0U%2BpxUGRjfjR9YwxJTG1AY6sQE933ZL9O5%2BUNNJZo5xF7AT%2Fe4%2FZZ82atNNMv4TH3P6JRB93rFelemxh93Oy2WtjJUeCt%2FYmdO5dJWKiTzAQS09lauJIl61dT9S%2BTx%2B71BKXHBuUn7KV%2BGuRCWoynpLGRBFaDrtBmuFdgKKFXKnB28Lne2GIWEQeKfkqF5OHyoPFzj%2B%2FC%2FrPZHSLbi721CNjjyqGhmdUX4NQf%2BQXEICgUcLohEcz5lE7Qf5ZTaPQSQZVUI%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47U5XLZ3DXD%2F20260828%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260828T135106Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=e8c5900a7414c76032beff002e6f5f5648ecf0bdccf87de660f6d1b3c9064d3f 300w\" sizes=\"(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 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=IQoJb3JpZ2luX2VjEIb%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQC7nAOanskFKHh3erAZZdaxCdlMLY33Fq1U60IXbSJFbwIgN05ixJHpUhO8MPrwnIRx8wZGj21NYCF3GdPT7IUqgXQquAUIThAFGgwyNzM1NzAxOTU0MzMiDHxENPPktj1cYCrNNSqVBYnIjRCJJP05gp0uCYTKSpKLskZju7VxlDIw0F8bJxLFM1IohgMBR20Crc0X%2BSVWVFQELwWH%2F9d3X8ooWxXEusj4z5CSukuQQe3WX1BwN52CPFKuhcFQvj6hnBnPXWn1nkp3SdAN4wubxlhx8%2Fju%2F3M1ZLNnXBsW8ASAqjN0s%2BCDSNW4oJMucDWFYaoJRK8jpm0gTtohsPBkjrOwXQxNLGvtcMQE5x%2FDFGeeLK64i5mN6d4wfzcdtNzXJ9Dv%2FiP%2Btk%2Bj7MOwsrr8Qj5dJK4zCYeQUhQQZ49xtjo1K%2BreQZd5F2pvSwJJGAXH0bNTVDmAMfqsuIfh0Mky%2BX%2BlnkfASLIp6Sv%2BtLfqwrMzcVVdffOHBrX2wVDAiZKIjR6YA%2BttiLzCtrVfd%2FWegQh9M04HlYZ4Gdnt8rpuqVTr7JA18I2aC87Iim9o6YTT48pcA1jTokfcoYbwIqWve0kNhNf2jkyfPnrDPVyL%2BMIbKAh1vfYWY9HAY99Phv3%2B0p7%2FnmMwkJQsGToXHg2P4gX4Wzmm1UB%2Bydg61GWM9nmqW3bMXmztuh%2BYbpBC9e4Pn7VBZoD1fpcLlykPAnF72h6CMKEwdvNXW1l%2BpZ45Hhnwt4GDm9mVbNAkAanue1RX7r0954X7o%2Bjh0kUGu66GlJ00AZXdBxqVa0zCwVtaqnc83xBxAF9yyb3JalsXbraCf6JVKYgCz5sa7ZFAY50e%2BmYeTEG9Q76e9a7Uavas%2FMQsVa0J729lmgqArFI7FVx0BqKjrK4TVF7kkJ9pgXDgHIY%2FNCM%2BULDSeebt4qTEuQn6HYINwuZ0Ur3uQ6mFzpMEgZg8XUxSU7wDlOXDPMiC1vIendQFKbJSm9SiXmJcVD9iI0U%2BpxUGRjfjR9YwxJTG1AY6sQE933ZL9O5%2BUNNJZo5xF7AT%2Fe4%2FZZ82atNNMv4TH3P6JRB93rFelemxh93Oy2WtjJUeCt%2FYmdO5dJWKiTzAQS09lauJIl61dT9S%2BTx%2B71BKXHBuUn7KV%2BGuRCWoynpLGRBFaDrtBmuFdgKKFXKnB28Lne2GIWEQeKfkqF5OHyoPFzj%2B%2FC%2FrPZHSLbi721CNjjyqGhmdUX4NQf%2BQXEICgUcLohEcz5lE7Qf5ZTaPQSQZVUI%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47U5XLZ3DXD%2F20260828%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260828T135106Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=1e217418d66f0c6fec7691bdd63299918b80ac0ffdb71bb4699273f139604ce0 300w\" sizes=\"(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}]}}