{"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=IQoJb3JpZ2luX2VjEMb%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIE8T8yyxZ6%2FjQgsQUdjmw1XMSE54s1YCOeti0dxQMu2MAiEAnqjcpuPSAZ0ljrC6Kfq0j2AJ%2FqaG408OKdChyTQFehcqwQUIj%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwyNzM1NzAxOTU0MzMiDK%2BKWmoOaZM6PJfVuSqVBeHbGlKVIg99zPt9bsg2oIUmmiL0C4ZoVsl2UsBzcoVhCQH1DQqmfAglIqgeccSpXdiRTO71%2FvzBcnRGL%2Fq5lUalg0HUbuI3QbMdNONyXiJl5g5KGB5LfaMzXOkQ7uuz5qxd9YHGzY1kWpHJrEp0jTkQsnlXZ75CjFlP4as3Nx79DYyF2IYcnBZa3EeL18gWYW4v8xjHrefTeY6cjvLmRFlvHEY%2FGt%2FLEn55ix8YJnYRCXLH7F5Rmba3eBNbYPLsVeBRyB%2BVhlHdACmcQN%2FsM1OSM3f7CGTNwkqK6UjK3mqYMM7k5GvY0uxrqkqP90Tp3wj6Ao5DVFOCfTPdgBD64jI%2BKr1kiRSjqKynHpwY14LM1Bna8DtvLPopJBKp%2Bo2%2Bay4EIOs%2FtD0JFlfTkNrN4Az6vDPdFswdIhePa8iHVvw%2BOqeyPEb5f09qBRLeXpcgomR3J2bPZifC9PshCY97dAXhGoeom0mA4JWxvGfGex8bWDyBDBfo56azj2kHnAyYlyxIhQ1DYY%2Bf0SXaM5txazKHJYQJIW2oGXq1ijZRQ7l78jlhnlngfImfs9219Zxh2WHpXUxPS4z1vHBAgrN7gQGbtqylh3UhvOrmjJPb6Sg0039Iy6S6eYaKHG5GdZJ1vQDBxRFXr4eHqanXTp8Kr9tuVU%2BiOA0rpzkr6rG6P0rndjHgPsEdp36NAnz%2FzIozFwPGAFXkvkt0JR9m4iaMxfxT75jHLSo7R28EhTrI%2FxPXoFA556NiS4A%2BYpNkNgY%2BIzC1euuDi46lWsb9jv70Gsk34ste3XmBa8xo%2BiTD0dos%2B7tc0rEpVc76Bi3wlnL4PH0K7WRfzL%2BbZxAlM%2FwqG4xL2%2B4ed6Il3EYa%2BHcFe3f2%2FiA06ZwwoO6C0gY6sQFp6Ix%2FQaR7beCcZ29OuQwac33dDHapSgq%2Fp1WX0cCuop8VmWuuoRNQR2%2FfrHPDGXUWBrYiYg%2Frc4llOu6rlIQv%2BNXaLQP%2BugCqYn9gGsnE%2FPlpzH3HNHDMrznb3jd5X7Hv2DXRXqOj0PuoWOzQnJhDIMcH3G2FY%2FLNQRh5NfvEDMwk5aqK72oLTWGNUnIvMRjLOU9O3sV%2BJya8ug5cr05%2FJ8xTjmWDJ5o7TSnl8kYvJ8I%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47U36KFH5JI%2F20260628%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260628T065600Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=0ae8b18a2fc55c44743ae77d9f92c913b541412d0ab75e2b182da49900ad2b02 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=IQoJb3JpZ2luX2VjEMb%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIE8T8yyxZ6%2FjQgsQUdjmw1XMSE54s1YCOeti0dxQMu2MAiEAnqjcpuPSAZ0ljrC6Kfq0j2AJ%2FqaG408OKdChyTQFehcqwQUIj%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwyNzM1NzAxOTU0MzMiDK%2BKWmoOaZM6PJfVuSqVBeHbGlKVIg99zPt9bsg2oIUmmiL0C4ZoVsl2UsBzcoVhCQH1DQqmfAglIqgeccSpXdiRTO71%2FvzBcnRGL%2Fq5lUalg0HUbuI3QbMdNONyXiJl5g5KGB5LfaMzXOkQ7uuz5qxd9YHGzY1kWpHJrEp0jTkQsnlXZ75CjFlP4as3Nx79DYyF2IYcnBZa3EeL18gWYW4v8xjHrefTeY6cjvLmRFlvHEY%2FGt%2FLEn55ix8YJnYRCXLH7F5Rmba3eBNbYPLsVeBRyB%2BVhlHdACmcQN%2FsM1OSM3f7CGTNwkqK6UjK3mqYMM7k5GvY0uxrqkqP90Tp3wj6Ao5DVFOCfTPdgBD64jI%2BKr1kiRSjqKynHpwY14LM1Bna8DtvLPopJBKp%2Bo2%2Bay4EIOs%2FtD0JFlfTkNrN4Az6vDPdFswdIhePa8iHVvw%2BOqeyPEb5f09qBRLeXpcgomR3J2bPZifC9PshCY97dAXhGoeom0mA4JWxvGfGex8bWDyBDBfo56azj2kHnAyYlyxIhQ1DYY%2Bf0SXaM5txazKHJYQJIW2oGXq1ijZRQ7l78jlhnlngfImfs9219Zxh2WHpXUxPS4z1vHBAgrN7gQGbtqylh3UhvOrmjJPb6Sg0039Iy6S6eYaKHG5GdZJ1vQDBxRFXr4eHqanXTp8Kr9tuVU%2BiOA0rpzkr6rG6P0rndjHgPsEdp36NAnz%2FzIozFwPGAFXkvkt0JR9m4iaMxfxT75jHLSo7R28EhTrI%2FxPXoFA556NiS4A%2BYpNkNgY%2BIzC1euuDi46lWsb9jv70Gsk34ste3XmBa8xo%2BiTD0dos%2B7tc0rEpVc76Bi3wlnL4PH0K7WRfzL%2BbZxAlM%2FwqG4xL2%2B4ed6Il3EYa%2BHcFe3f2%2FiA06ZwwoO6C0gY6sQFp6Ix%2FQaR7beCcZ29OuQwac33dDHapSgq%2Fp1WX0cCuop8VmWuuoRNQR2%2FfrHPDGXUWBrYiYg%2Frc4llOu6rlIQv%2BNXaLQP%2BugCqYn9gGsnE%2FPlpzH3HNHDMrznb3jd5X7Hv2DXRXqOj0PuoWOzQnJhDIMcH3G2FY%2FLNQRh5NfvEDMwk5aqK72oLTWGNUnIvMRjLOU9O3sV%2BJya8ug5cr05%2FJ8xTjmWDJ5o7TSnl8kYvJ8I%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47U36KFH5JI%2F20260628%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260628T065600Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=30760fc33c4686cd236e3d5cc611901f9a3cc22feb7ff09498cb6d15f921ae6d 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=IQoJb3JpZ2luX2VjEMb%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIE8T8yyxZ6%2FjQgsQUdjmw1XMSE54s1YCOeti0dxQMu2MAiEAnqjcpuPSAZ0ljrC6Kfq0j2AJ%2FqaG408OKdChyTQFehcqwQUIj%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwyNzM1NzAxOTU0MzMiDK%2BKWmoOaZM6PJfVuSqVBeHbGlKVIg99zPt9bsg2oIUmmiL0C4ZoVsl2UsBzcoVhCQH1DQqmfAglIqgeccSpXdiRTO71%2FvzBcnRGL%2Fq5lUalg0HUbuI3QbMdNONyXiJl5g5KGB5LfaMzXOkQ7uuz5qxd9YHGzY1kWpHJrEp0jTkQsnlXZ75CjFlP4as3Nx79DYyF2IYcnBZa3EeL18gWYW4v8xjHrefTeY6cjvLmRFlvHEY%2FGt%2FLEn55ix8YJnYRCXLH7F5Rmba3eBNbYPLsVeBRyB%2BVhlHdACmcQN%2FsM1OSM3f7CGTNwkqK6UjK3mqYMM7k5GvY0uxrqkqP90Tp3wj6Ao5DVFOCfTPdgBD64jI%2BKr1kiRSjqKynHpwY14LM1Bna8DtvLPopJBKp%2Bo2%2Bay4EIOs%2FtD0JFlfTkNrN4Az6vDPdFswdIhePa8iHVvw%2BOqeyPEb5f09qBRLeXpcgomR3J2bPZifC9PshCY97dAXhGoeom0mA4JWxvGfGex8bWDyBDBfo56azj2kHnAyYlyxIhQ1DYY%2Bf0SXaM5txazKHJYQJIW2oGXq1ijZRQ7l78jlhnlngfImfs9219Zxh2WHpXUxPS4z1vHBAgrN7gQGbtqylh3UhvOrmjJPb6Sg0039Iy6S6eYaKHG5GdZJ1vQDBxRFXr4eHqanXTp8Kr9tuVU%2BiOA0rpzkr6rG6P0rndjHgPsEdp36NAnz%2FzIozFwPGAFXkvkt0JR9m4iaMxfxT75jHLSo7R28EhTrI%2FxPXoFA556NiS4A%2BYpNkNgY%2BIzC1euuDi46lWsb9jv70Gsk34ste3XmBa8xo%2BiTD0dos%2B7tc0rEpVc76Bi3wlnL4PH0K7WRfzL%2BbZxAlM%2FwqG4xL2%2B4ed6Il3EYa%2BHcFe3f2%2FiA06ZwwoO6C0gY6sQFp6Ix%2FQaR7beCcZ29OuQwac33dDHapSgq%2Fp1WX0cCuop8VmWuuoRNQR2%2FfrHPDGXUWBrYiYg%2Frc4llOu6rlIQv%2BNXaLQP%2BugCqYn9gGsnE%2FPlpzH3HNHDMrznb3jd5X7Hv2DXRXqOj0PuoWOzQnJhDIMcH3G2FY%2FLNQRh5NfvEDMwk5aqK72oLTWGNUnIvMRjLOU9O3sV%2BJya8ug5cr05%2FJ8xTjmWDJ5o7TSnl8kYvJ8I%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47U36KFH5JI%2F20260628%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260628T065600Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=ec414322ede89a6364b8374b73b3001acc41a7333a54a788debdb0700ecf4f9c 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}]}}