{"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=IQoJb3JpZ2luX2VjEJ7%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJGMEQCIES9wyyncH6AZc7zY14joMqcGKp%2Fy9LhjF8uoSMJ9QHiAiAzaT5oyLDO1LTtauzoHkYybBf3Egmnn%2FlHYshbZNyAHiq4BQhnEAUaDDI3MzU3MDE5NTQzMyIMdGvZ%2BKbOE1vVSH2tKpUF0gEjJFbBGTmiI1pbSsH9fgNtmivqG1vNGuCYNz3CEVpz5jusODwp9oF0M%2BdhMJ4z5%2FTOje0LilQ7JpJoQ%2FyYy%2FzunC5OtBZy5lAXpioa1GXSkcf2aEO1kuWx98R6o4QccJYzehzoCSCVehysAlv5SQXdZwKwqq5Gynol2QxXNAItZD%2Ff39xA7AirAdcxNFwi2uSXFliImenk4ib%2FnoRA4ftkfEerYjUaOmJnJbdGGCyWb%2B80cFL1Q3%2BviTT65jMlHYkB6WhdzFY7FW1uCCPYZz%2FWKhWlgVbUQ4wXlp3qUIWNfSoWUeNAcDdHEwnELbGi6LhH5LU6OYfV8fcSOwLPGSnZl%2FiyAOSaL9IvAD%2BM5OChZbNJQirBlqioIc6ATZv8qs185jdNBa6daA4OWWQqE93MNapy0bThHQPgNd6%2B23MhmhDiKh0RggVbq0Hrk4nWBynIZG%2B2rvo0%2Fv1HVYb2s5TnKoGr3RMNVnJi1Kg4fkumxQGU5Xi8g%2Fx4zvWhKwRuffQDhDuWvtOjdw3V05SxT4z9H%2BECGUlDyUCRZgw7qgnPcaVV5v3C4MEQqJufucrojYnSFKSfVSAlHXbqsQxKpgDTW6PEeFVXcJbsJKO8vPTDt65M3qaQnL7nvdThUWr0rRwJxCAECYjOQL%2Fad6hxaMlswIoPZXNToPZaXHx7bEiLkerqq5sjje%2BPu2ubUJvPcogTsCy%2BAv1ilI31W3Jr%2BTxp10w9naNPQKN4OoNMFdSWAFHoV4SdXD2UkCnVN1f8GuECdq2BhWrkHVuSvN8WDAOLTfI8DReoLlMlgCtv%2BUAU9BPyNLfeqU36aM72ftK3vYTWeFInjZQw%2FWRwsXuowzBsP8pZPswrZDWCwJnCTf86Wt5H2TD6i9vTBjqyAcyIDcko5YfQNn1GkhtuVjpf9N8ywAnc5fnzQL%2FQsoN%2B9ex3wgfKSmD28Vo%2F%2FjlKw8YN1jai5Zn9%2Bz0brG%2FaWjRr17QIM16f3wlJ6Murx7Css1qkERW8YDwGwqMe2bLI4xQOavy08iHMYx8pruCCMJ3O2rGqtyh3iK5pC8E5RB%2Fvr68%2Fo5%2Fx5MDCy%2BnDvcAHRVyOUvw96qEyiSGY7gAWhl1JvDv1CVwSbXFeMvZX98f4%2FUg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZ4PHPK2X%2F20260808%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260808T063950Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=6c7b3ae49cfb29a4c291e71f187ea3c277ca3412f3092b43e09732cc9aa47b5d 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=IQoJb3JpZ2luX2VjEJ7%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJGMEQCIES9wyyncH6AZc7zY14joMqcGKp%2Fy9LhjF8uoSMJ9QHiAiAzaT5oyLDO1LTtauzoHkYybBf3Egmnn%2FlHYshbZNyAHiq4BQhnEAUaDDI3MzU3MDE5NTQzMyIMdGvZ%2BKbOE1vVSH2tKpUF0gEjJFbBGTmiI1pbSsH9fgNtmivqG1vNGuCYNz3CEVpz5jusODwp9oF0M%2BdhMJ4z5%2FTOje0LilQ7JpJoQ%2FyYy%2FzunC5OtBZy5lAXpioa1GXSkcf2aEO1kuWx98R6o4QccJYzehzoCSCVehysAlv5SQXdZwKwqq5Gynol2QxXNAItZD%2Ff39xA7AirAdcxNFwi2uSXFliImenk4ib%2FnoRA4ftkfEerYjUaOmJnJbdGGCyWb%2B80cFL1Q3%2BviTT65jMlHYkB6WhdzFY7FW1uCCPYZz%2FWKhWlgVbUQ4wXlp3qUIWNfSoWUeNAcDdHEwnELbGi6LhH5LU6OYfV8fcSOwLPGSnZl%2FiyAOSaL9IvAD%2BM5OChZbNJQirBlqioIc6ATZv8qs185jdNBa6daA4OWWQqE93MNapy0bThHQPgNd6%2B23MhmhDiKh0RggVbq0Hrk4nWBynIZG%2B2rvo0%2Fv1HVYb2s5TnKoGr3RMNVnJi1Kg4fkumxQGU5Xi8g%2Fx4zvWhKwRuffQDhDuWvtOjdw3V05SxT4z9H%2BECGUlDyUCRZgw7qgnPcaVV5v3C4MEQqJufucrojYnSFKSfVSAlHXbqsQxKpgDTW6PEeFVXcJbsJKO8vPTDt65M3qaQnL7nvdThUWr0rRwJxCAECYjOQL%2Fad6hxaMlswIoPZXNToPZaXHx7bEiLkerqq5sjje%2BPu2ubUJvPcogTsCy%2BAv1ilI31W3Jr%2BTxp10w9naNPQKN4OoNMFdSWAFHoV4SdXD2UkCnVN1f8GuECdq2BhWrkHVuSvN8WDAOLTfI8DReoLlMlgCtv%2BUAU9BPyNLfeqU36aM72ftK3vYTWeFInjZQw%2FWRwsXuowzBsP8pZPswrZDWCwJnCTf86Wt5H2TD6i9vTBjqyAcyIDcko5YfQNn1GkhtuVjpf9N8ywAnc5fnzQL%2FQsoN%2B9ex3wgfKSmD28Vo%2F%2FjlKw8YN1jai5Zn9%2Bz0brG%2FaWjRr17QIM16f3wlJ6Murx7Css1qkERW8YDwGwqMe2bLI4xQOavy08iHMYx8pruCCMJ3O2rGqtyh3iK5pC8E5RB%2Fvr68%2Fo5%2Fx5MDCy%2BnDvcAHRVyOUvw96qEyiSGY7gAWhl1JvDv1CVwSbXFeMvZX98f4%2FUg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZ4PHPK2X%2F20260808%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260808T063950Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=119f6b3a239b7c6cb855722d8d97f71f44fa5b98afe2b207f2a16707dac6e52d 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=IQoJb3JpZ2luX2VjEJ7%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJGMEQCIES9wyyncH6AZc7zY14joMqcGKp%2Fy9LhjF8uoSMJ9QHiAiAzaT5oyLDO1LTtauzoHkYybBf3Egmnn%2FlHYshbZNyAHiq4BQhnEAUaDDI3MzU3MDE5NTQzMyIMdGvZ%2BKbOE1vVSH2tKpUF0gEjJFbBGTmiI1pbSsH9fgNtmivqG1vNGuCYNz3CEVpz5jusODwp9oF0M%2BdhMJ4z5%2FTOje0LilQ7JpJoQ%2FyYy%2FzunC5OtBZy5lAXpioa1GXSkcf2aEO1kuWx98R6o4QccJYzehzoCSCVehysAlv5SQXdZwKwqq5Gynol2QxXNAItZD%2Ff39xA7AirAdcxNFwi2uSXFliImenk4ib%2FnoRA4ftkfEerYjUaOmJnJbdGGCyWb%2B80cFL1Q3%2BviTT65jMlHYkB6WhdzFY7FW1uCCPYZz%2FWKhWlgVbUQ4wXlp3qUIWNfSoWUeNAcDdHEwnELbGi6LhH5LU6OYfV8fcSOwLPGSnZl%2FiyAOSaL9IvAD%2BM5OChZbNJQirBlqioIc6ATZv8qs185jdNBa6daA4OWWQqE93MNapy0bThHQPgNd6%2B23MhmhDiKh0RggVbq0Hrk4nWBynIZG%2B2rvo0%2Fv1HVYb2s5TnKoGr3RMNVnJi1Kg4fkumxQGU5Xi8g%2Fx4zvWhKwRuffQDhDuWvtOjdw3V05SxT4z9H%2BECGUlDyUCRZgw7qgnPcaVV5v3C4MEQqJufucrojYnSFKSfVSAlHXbqsQxKpgDTW6PEeFVXcJbsJKO8vPTDt65M3qaQnL7nvdThUWr0rRwJxCAECYjOQL%2Fad6hxaMlswIoPZXNToPZaXHx7bEiLkerqq5sjje%2BPu2ubUJvPcogTsCy%2BAv1ilI31W3Jr%2BTxp10w9naNPQKN4OoNMFdSWAFHoV4SdXD2UkCnVN1f8GuECdq2BhWrkHVuSvN8WDAOLTfI8DReoLlMlgCtv%2BUAU9BPyNLfeqU36aM72ftK3vYTWeFInjZQw%2FWRwsXuowzBsP8pZPswrZDWCwJnCTf86Wt5H2TD6i9vTBjqyAcyIDcko5YfQNn1GkhtuVjpf9N8ywAnc5fnzQL%2FQsoN%2B9ex3wgfKSmD28Vo%2F%2FjlKw8YN1jai5Zn9%2Bz0brG%2FaWjRr17QIM16f3wlJ6Murx7Css1qkERW8YDwGwqMe2bLI4xQOavy08iHMYx8pruCCMJ3O2rGqtyh3iK5pC8E5RB%2Fvr68%2Fo5%2Fx5MDCy%2BnDvcAHRVyOUvw96qEyiSGY7gAWhl1JvDv1CVwSbXFeMvZX98f4%2FUg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZ4PHPK2X%2F20260808%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260808T063950Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=7398635928dc9ed2de5d3ad0bcede0d3b5436bf7855c9a97522080c2d34cad74 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}]}}