{"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=IQoJb3JpZ2luX2VjEFAaCWV1LXdlc3QtMSJGMEQCICGQQGH1IPhgV6LVxYYeJfuvEV7JRPGZSeIw3F9W%2F8EFAiAM4PzdvnuO1C3C1P2nlRVeGIVverCJWWRX1KrSiH3GXSq5BQgZEAUaDDI3MzU3MDE5NTQzMyIM0RIj0F0vMvOCMTHgKpYFE4%2F5IuTEq9vI8rot%2BlyI2NB8e5%2By3nhhdK7%2BpMWAgUiOqnDxT6tVEK6N%2Bm8WiLbB%2B30bbIJ5BIIWCY7sp3FkrGPlBDKuHQ5UiP2azCUtsBwUPp5uAFvu08l4HULUDXq8ssewEr1eK6US6GixQcoSlFkIJpC7e8n1cP1X8n%2FdOYKpq1cZhIffadiJ9az5RCGzCtIjI%2FeWDMARcYkGepkaLKo0lo%2ByC9PKaW7AqJHuXUNJ5iKt40wJ2iP5pQSQYwm9zGljdrKHnhEah%2B6uVrwEvflcnsaUNLIi9nQKje7cx6tK5l5u1f5e5nbzEXDCnq4F7Yod4LcHdxDi0zJvKa97Hu8SFupBi%2F07a59yRE1QPoJP4Ad%2Big%2FwEGaG1Q0O%2FCGUjqY6Xii1Hm6q6XBx0ArQ4gg%2BTqzssFD6gdX%2FD1PQZdMrR5euP8C3eYDfV%2B%2FRRjWVpuA3ETduebMgxjXsqU896hpNcwm7OcsVIqrxCw4OGC0Q9gn8eywogLmNnmaZGleLyv048q4ZSJr%2FHV9GuT5TxivcDg2GVV%2BZWgJ7gG7Jc3xOS4T5fDb9ey3OSyySxK4hGK4oXvHsl7VlNogBdoCeULNDCO6iOWVq10WkhjCsgozJSzb1LOu3zUHSzPV28aLQTUHaEnqdG67u%2Faf0IyN337tD5qQ4uJdDkNunpgHVhsspAM5%2BSx849%2BJR7XprkXuEs%2BkUmXzTHG9ST%2BugywMDZo0C41q%2FWK2w4RUcI%2F%2Bt7vZQiHyIUGLQILD5eIqf8HEwz63LZOVgDFiSRG7cGc1goTGX%2FFb%2FYf2hAtsflPYOKMBiYy1CwNJ57rVKo8JqNTmTUufhCD05Dqf7RPE5q4nerFvi1SLg4TrXFUtw37HwggIzJJKaLIgww%2BuL1wY6sgFC%2F8kuSwxNekGBFnPrHu%2FTGf%2BD%2FBz6u6pRTe%2Fb67YKxcLm2Dymt%2Fiy2VmZ6RdX8V98hPLeA1sWQjb6ppd20Q4JoYF3%2FWQ0bsouk7SXjkRs8Fk21WDePnYv2oBC8P3mCo9tDuLyUv8MbxuamlcenIb9nmRojb%2Bh8hZ58oKR4XxjQTcYcjClN7WICACxZCEEgiLvk25iO6CeBDWXfhRlR6inT3QdNV4tYFMesY0Rb1YymoRr&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX2GMWDFB%2F20261029%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20261029T080840Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=50bf28b86d445d57e6e12c194ba2dd7a09de44b02c7af716407fec25af2b6078 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=IQoJb3JpZ2luX2VjEFAaCWV1LXdlc3QtMSJGMEQCICGQQGH1IPhgV6LVxYYeJfuvEV7JRPGZSeIw3F9W%2F8EFAiAM4PzdvnuO1C3C1P2nlRVeGIVverCJWWRX1KrSiH3GXSq5BQgZEAUaDDI3MzU3MDE5NTQzMyIM0RIj0F0vMvOCMTHgKpYFE4%2F5IuTEq9vI8rot%2BlyI2NB8e5%2By3nhhdK7%2BpMWAgUiOqnDxT6tVEK6N%2Bm8WiLbB%2B30bbIJ5BIIWCY7sp3FkrGPlBDKuHQ5UiP2azCUtsBwUPp5uAFvu08l4HULUDXq8ssewEr1eK6US6GixQcoSlFkIJpC7e8n1cP1X8n%2FdOYKpq1cZhIffadiJ9az5RCGzCtIjI%2FeWDMARcYkGepkaLKo0lo%2ByC9PKaW7AqJHuXUNJ5iKt40wJ2iP5pQSQYwm9zGljdrKHnhEah%2B6uVrwEvflcnsaUNLIi9nQKje7cx6tK5l5u1f5e5nbzEXDCnq4F7Yod4LcHdxDi0zJvKa97Hu8SFupBi%2F07a59yRE1QPoJP4Ad%2Big%2FwEGaG1Q0O%2FCGUjqY6Xii1Hm6q6XBx0ArQ4gg%2BTqzssFD6gdX%2FD1PQZdMrR5euP8C3eYDfV%2B%2FRRjWVpuA3ETduebMgxjXsqU896hpNcwm7OcsVIqrxCw4OGC0Q9gn8eywogLmNnmaZGleLyv048q4ZSJr%2FHV9GuT5TxivcDg2GVV%2BZWgJ7gG7Jc3xOS4T5fDb9ey3OSyySxK4hGK4oXvHsl7VlNogBdoCeULNDCO6iOWVq10WkhjCsgozJSzb1LOu3zUHSzPV28aLQTUHaEnqdG67u%2Faf0IyN337tD5qQ4uJdDkNunpgHVhsspAM5%2BSx849%2BJR7XprkXuEs%2BkUmXzTHG9ST%2BugywMDZo0C41q%2FWK2w4RUcI%2F%2Bt7vZQiHyIUGLQILD5eIqf8HEwz63LZOVgDFiSRG7cGc1goTGX%2FFb%2FYf2hAtsflPYOKMBiYy1CwNJ57rVKo8JqNTmTUufhCD05Dqf7RPE5q4nerFvi1SLg4TrXFUtw37HwggIzJJKaLIgww%2BuL1wY6sgFC%2F8kuSwxNekGBFnPrHu%2FTGf%2BD%2FBz6u6pRTe%2Fb67YKxcLm2Dymt%2Fiy2VmZ6RdX8V98hPLeA1sWQjb6ppd20Q4JoYF3%2FWQ0bsouk7SXjkRs8Fk21WDePnYv2oBC8P3mCo9tDuLyUv8MbxuamlcenIb9nmRojb%2Bh8hZ58oKR4XxjQTcYcjClN7WICACxZCEEgiLvk25iO6CeBDWXfhRlR6inT3QdNV4tYFMesY0Rb1YymoRr&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX2GMWDFB%2F20261029%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20261029T080840Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5e1d4bc602d6aa77f1137c328e21a2fef205bca131b0517237c049f2e3744153 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=IQoJb3JpZ2luX2VjEFAaCWV1LXdlc3QtMSJGMEQCICGQQGH1IPhgV6LVxYYeJfuvEV7JRPGZSeIw3F9W%2F8EFAiAM4PzdvnuO1C3C1P2nlRVeGIVverCJWWRX1KrSiH3GXSq5BQgZEAUaDDI3MzU3MDE5NTQzMyIM0RIj0F0vMvOCMTHgKpYFE4%2F5IuTEq9vI8rot%2BlyI2NB8e5%2By3nhhdK7%2BpMWAgUiOqnDxT6tVEK6N%2Bm8WiLbB%2B30bbIJ5BIIWCY7sp3FkrGPlBDKuHQ5UiP2azCUtsBwUPp5uAFvu08l4HULUDXq8ssewEr1eK6US6GixQcoSlFkIJpC7e8n1cP1X8n%2FdOYKpq1cZhIffadiJ9az5RCGzCtIjI%2FeWDMARcYkGepkaLKo0lo%2ByC9PKaW7AqJHuXUNJ5iKt40wJ2iP5pQSQYwm9zGljdrKHnhEah%2B6uVrwEvflcnsaUNLIi9nQKje7cx6tK5l5u1f5e5nbzEXDCnq4F7Yod4LcHdxDi0zJvKa97Hu8SFupBi%2F07a59yRE1QPoJP4Ad%2Big%2FwEGaG1Q0O%2FCGUjqY6Xii1Hm6q6XBx0ArQ4gg%2BTqzssFD6gdX%2FD1PQZdMrR5euP8C3eYDfV%2B%2FRRjWVpuA3ETduebMgxjXsqU896hpNcwm7OcsVIqrxCw4OGC0Q9gn8eywogLmNnmaZGleLyv048q4ZSJr%2FHV9GuT5TxivcDg2GVV%2BZWgJ7gG7Jc3xOS4T5fDb9ey3OSyySxK4hGK4oXvHsl7VlNogBdoCeULNDCO6iOWVq10WkhjCsgozJSzb1LOu3zUHSzPV28aLQTUHaEnqdG67u%2Faf0IyN337tD5qQ4uJdDkNunpgHVhsspAM5%2BSx849%2BJR7XprkXuEs%2BkUmXzTHG9ST%2BugywMDZo0C41q%2FWK2w4RUcI%2F%2Bt7vZQiHyIUGLQILD5eIqf8HEwz63LZOVgDFiSRG7cGc1goTGX%2FFb%2FYf2hAtsflPYOKMBiYy1CwNJ57rVKo8JqNTmTUufhCD05Dqf7RPE5q4nerFvi1SLg4TrXFUtw37HwggIzJJKaLIgww%2BuL1wY6sgFC%2F8kuSwxNekGBFnPrHu%2FTGf%2BD%2FBz6u6pRTe%2Fb67YKxcLm2Dymt%2Fiy2VmZ6RdX8V98hPLeA1sWQjb6ppd20Q4JoYF3%2FWQ0bsouk7SXjkRs8Fk21WDePnYv2oBC8P3mCo9tDuLyUv8MbxuamlcenIb9nmRojb%2Bh8hZ58oKR4XxjQTcYcjClN7WICACxZCEEgiLvk25iO6CeBDWXfhRlR6inT3QdNV4tYFMesY0Rb1YymoRr&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX2GMWDFB%2F20261029%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20261029T080840Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=1e6de2b7377ca885ef06d95bb7b21000ff3782d7325fbdfada1a901886c780a1 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}]}}