{"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=IQoJb3JpZ2luX2VjEK7%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDVCnB0qcntyX57Y7gmi00ECtLVfdLWmNVBgTAawhiQXgIgJ9oPEPSTpIQijdzUfwBZZ19TQybcRvE79S12vYbW17kquAUIdxAFGgwyNzM1NzAxOTU0MzMiDJermNgLyh%2B3hKibWCqVBYhWeS1hSd16BXXrhlYRA32GMbA9ro99BvgT0%2BJ56s%2FkyUvxn9jX2ol%2F02CMosJC8sZfa87s60bRMRBog5Vz9RfnaxmB7qxsPO733MH6%2FXddgz9%2Fos8CVF8Q8pSu7H8yzDbUeK5wRXlEaWp4A6hsCS0SJkd%2FNhF5KZk0c18NHJ2qp%2BdDD6L7ZVAfhX%2BttJ3gXA9OHPdj1swxbR5wSCfNsnfAhjGnWbCnaY%2BWDHEkv5UJwMswKc4qEWifDZnn6h84M5nH5BhxFIogkjHkoNOI66UdraIEcSo%2B4gJVsnG7a4K4zHPs3%2FQDkRW4hF2aqZeFu1ug461WAS%2FJPYJ04dYTyZIMqohYHKiQxP0xKgLmuVgj25Pxm8C0htkLBKMGKD0Rt0hfKdvFb0bHDhDH4%2B%2BVSOJAIlBG202e8axzFtj%2FmiXUqIsXUe2qA6WNeMbFSYgOFIeaWd8rTtaiHlxElVu9ikPiKQtrsPDQxD6XS1O3ibb3E7CsvjWuiiVSJnRmshVHw0zgL2TWTf1lHOMauowf%2BbCnOeApowxDhbjd8iqOftgOer3QpyenCrRF%2BUMtJ07aAcVvfrTbcFWJbW1s4wKyMIJJgI9cmcoDW7kh3%2FcwFtX1m0j02ZjaVorpQ6Un85UHtc%2BXxWjJvvsfZvjBeSe%2BtYu%2FJ9KrT0O8zfbMNgAKTuoE7TpkwSOm7PsVJe3yNFNNMOWXRx%2B%2F4f%2Bwy5Zqg35S6QopMRDGOelgcPTByENfutzcM7nB54rDSC6aMdqJCBCyEJL%2B%2B95TB8o870Y4QuxyopMG43eEuO97TbFMqrXv3fAXm%2F1ChJJCdDNNdbcbv5CFZn45jVuyctciM0mrFpNoKiqgzMrBIa%2FI7n3J0ap7Cb9RqzlbXmcwjonu0gY6sQGuScmg0mAen9TDvJtxg2FAgLkClYiiKC8OO4BPFSICU7Wnxmg%2FMxv7aoc0gzGSRFpNebsTOTM8yAEDoFXotFNXCN5CNhEGbtk1ZQ8DTjMSni9Fqb569Wvq9UOu%2FYbQrOa8OMt0IROJPfMZ9Dp7g36Bmdkcqt0ZjQhR4qYZnU3YjENVYFlD6MoQVSHIGXtYq62OBhawqPswe8Ja2Yh9QCLWx2fu37675Jw5bOhLGYds2kU%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UUAUCJZGN%2F20260718%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260718T140713Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=17bea48956c8f2f43f08e36003f34eeb68a9b88cfe8f7627ee85a6f869850238 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=IQoJb3JpZ2luX2VjEK7%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDVCnB0qcntyX57Y7gmi00ECtLVfdLWmNVBgTAawhiQXgIgJ9oPEPSTpIQijdzUfwBZZ19TQybcRvE79S12vYbW17kquAUIdxAFGgwyNzM1NzAxOTU0MzMiDJermNgLyh%2B3hKibWCqVBYhWeS1hSd16BXXrhlYRA32GMbA9ro99BvgT0%2BJ56s%2FkyUvxn9jX2ol%2F02CMosJC8sZfa87s60bRMRBog5Vz9RfnaxmB7qxsPO733MH6%2FXddgz9%2Fos8CVF8Q8pSu7H8yzDbUeK5wRXlEaWp4A6hsCS0SJkd%2FNhF5KZk0c18NHJ2qp%2BdDD6L7ZVAfhX%2BttJ3gXA9OHPdj1swxbR5wSCfNsnfAhjGnWbCnaY%2BWDHEkv5UJwMswKc4qEWifDZnn6h84M5nH5BhxFIogkjHkoNOI66UdraIEcSo%2B4gJVsnG7a4K4zHPs3%2FQDkRW4hF2aqZeFu1ug461WAS%2FJPYJ04dYTyZIMqohYHKiQxP0xKgLmuVgj25Pxm8C0htkLBKMGKD0Rt0hfKdvFb0bHDhDH4%2B%2BVSOJAIlBG202e8axzFtj%2FmiXUqIsXUe2qA6WNeMbFSYgOFIeaWd8rTtaiHlxElVu9ikPiKQtrsPDQxD6XS1O3ibb3E7CsvjWuiiVSJnRmshVHw0zgL2TWTf1lHOMauowf%2BbCnOeApowxDhbjd8iqOftgOer3QpyenCrRF%2BUMtJ07aAcVvfrTbcFWJbW1s4wKyMIJJgI9cmcoDW7kh3%2FcwFtX1m0j02ZjaVorpQ6Un85UHtc%2BXxWjJvvsfZvjBeSe%2BtYu%2FJ9KrT0O8zfbMNgAKTuoE7TpkwSOm7PsVJe3yNFNNMOWXRx%2B%2F4f%2Bwy5Zqg35S6QopMRDGOelgcPTByENfutzcM7nB54rDSC6aMdqJCBCyEJL%2B%2B95TB8o870Y4QuxyopMG43eEuO97TbFMqrXv3fAXm%2F1ChJJCdDNNdbcbv5CFZn45jVuyctciM0mrFpNoKiqgzMrBIa%2FI7n3J0ap7Cb9RqzlbXmcwjonu0gY6sQGuScmg0mAen9TDvJtxg2FAgLkClYiiKC8OO4BPFSICU7Wnxmg%2FMxv7aoc0gzGSRFpNebsTOTM8yAEDoFXotFNXCN5CNhEGbtk1ZQ8DTjMSni9Fqb569Wvq9UOu%2FYbQrOa8OMt0IROJPfMZ9Dp7g36Bmdkcqt0ZjQhR4qYZnU3YjENVYFlD6MoQVSHIGXtYq62OBhawqPswe8Ja2Yh9QCLWx2fu37675Jw5bOhLGYds2kU%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UUAUCJZGN%2F20260718%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260718T140713Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=f38c7793c70182b17083c3c0e32f878c6f28c948b9dab3d93771b1981980386b 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=IQoJb3JpZ2luX2VjEK7%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDVCnB0qcntyX57Y7gmi00ECtLVfdLWmNVBgTAawhiQXgIgJ9oPEPSTpIQijdzUfwBZZ19TQybcRvE79S12vYbW17kquAUIdxAFGgwyNzM1NzAxOTU0MzMiDJermNgLyh%2B3hKibWCqVBYhWeS1hSd16BXXrhlYRA32GMbA9ro99BvgT0%2BJ56s%2FkyUvxn9jX2ol%2F02CMosJC8sZfa87s60bRMRBog5Vz9RfnaxmB7qxsPO733MH6%2FXddgz9%2Fos8CVF8Q8pSu7H8yzDbUeK5wRXlEaWp4A6hsCS0SJkd%2FNhF5KZk0c18NHJ2qp%2BdDD6L7ZVAfhX%2BttJ3gXA9OHPdj1swxbR5wSCfNsnfAhjGnWbCnaY%2BWDHEkv5UJwMswKc4qEWifDZnn6h84M5nH5BhxFIogkjHkoNOI66UdraIEcSo%2B4gJVsnG7a4K4zHPs3%2FQDkRW4hF2aqZeFu1ug461WAS%2FJPYJ04dYTyZIMqohYHKiQxP0xKgLmuVgj25Pxm8C0htkLBKMGKD0Rt0hfKdvFb0bHDhDH4%2B%2BVSOJAIlBG202e8axzFtj%2FmiXUqIsXUe2qA6WNeMbFSYgOFIeaWd8rTtaiHlxElVu9ikPiKQtrsPDQxD6XS1O3ibb3E7CsvjWuiiVSJnRmshVHw0zgL2TWTf1lHOMauowf%2BbCnOeApowxDhbjd8iqOftgOer3QpyenCrRF%2BUMtJ07aAcVvfrTbcFWJbW1s4wKyMIJJgI9cmcoDW7kh3%2FcwFtX1m0j02ZjaVorpQ6Un85UHtc%2BXxWjJvvsfZvjBeSe%2BtYu%2FJ9KrT0O8zfbMNgAKTuoE7TpkwSOm7PsVJe3yNFNNMOWXRx%2B%2F4f%2Bwy5Zqg35S6QopMRDGOelgcPTByENfutzcM7nB54rDSC6aMdqJCBCyEJL%2B%2B95TB8o870Y4QuxyopMG43eEuO97TbFMqrXv3fAXm%2F1ChJJCdDNNdbcbv5CFZn45jVuyctciM0mrFpNoKiqgzMrBIa%2FI7n3J0ap7Cb9RqzlbXmcwjonu0gY6sQGuScmg0mAen9TDvJtxg2FAgLkClYiiKC8OO4BPFSICU7Wnxmg%2FMxv7aoc0gzGSRFpNebsTOTM8yAEDoFXotFNXCN5CNhEGbtk1ZQ8DTjMSni9Fqb569Wvq9UOu%2FYbQrOa8OMt0IROJPfMZ9Dp7g36Bmdkcqt0ZjQhR4qYZnU3YjENVYFlD6MoQVSHIGXtYq62OBhawqPswe8Ja2Yh9QCLWx2fu37675Jw5bOhLGYds2kU%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UUAUCJZGN%2F20260718%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260718T140713Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=e155d622db9eb381d75226895c46e76ad8b2129d4ca6ddb208ee842d7d819367 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}]}}