{"id":152738,"date":"2022-12-13T13:23:23","date_gmt":"2022-12-13T19:23:23","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2022\/12\/traveling-back-in-time"},"modified":"2022-12-13T13:23:23","modified_gmt":"2022-12-13T19:23:23","slug":"traveling-back-in-time","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2022\/12\/traveling-back-in-time","title":{"rendered":"Traveling Back in Time"},"content":{"rendered":"<p><\/p>\n<p><iframe style=\"display: block; margin: 0 auto; width: 100%; aspect-ratio: 4\/3; object-fit: contain;\" src=\"https:\/\/www.youtube.com\/embed\/2w22CBE_9GI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope;\n   picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>Backwards through time? We travel forwards every day, but traveling back could let us change our past, visit old friends, or manipulate the timeline to our benefit\u2026 Although our knowledge of space and time remains incomplete, we can still use what we know to consider possible time machines. But what kind of paradoxes would this entail and how can we resolve them? Join us today on a special journey through time.<\/p>\n<p>An educational video written and presented by Professor David Kipping.<\/p>\n<p>This video is based on research conducted at the Cool Worlds Lab at Columbia University, New York. You can now support our research program directly here: <a href=\"https:\/\/www.coolworldslab.com\/support\">https:\/\/www.coolworldslab.com\/support<\/a>.<\/p>\n<p>All music used is licensed by <a href=\"http:\/\/SoundStripe.com\">SoundStripe.com<\/a> or through Creative Commons:<br \/> \u25ba \u201cIt\u2019s Always Darkest Before the Dawn\u201d by Hill, licensed through SoundStripe.com: <a href=\"https:\/\/app.soundstripe.com\/songs\/7441\">https:\/\/app.soundstripe.com\/songs\/7441<\/a><br \/> \u25ba \u201cWaking Up\u201d by Atlas, licensed through SoundStripe.com: <a href=\"https:\/\/app.soundstripe.com\/songs\/3984\">https:\/\/app.soundstripe.com\/songs\/3984<\/a><br \/> \u25ba Cylinder Four (<a href=\"http:\/\/chriszabriskie.com\/cylinders\/\">http:\/\/chriszabriskie.com\/cylinders\/<\/a>) by Chris Zabriskie (<a href=\"http:\/\/chriszabriskie.com\/);\">http:\/\/chriszabriskie.com\/);<\/a> licensed under a Creative Commons Attribution license (<a href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">https:\/\/creativecommons.org\/licenses\/by\/4.0\/<\/a>)<br \/> \u25ba \u201cAlways Dreaming\u201d by Caleb Etheridge, licensed through SoundStripe.com: <a href=\"https:\/\/app.soundstripe.com\/songs\/5534\">https:\/\/app.soundstripe.com\/songs\/5534<\/a><br \/> \u25ba Cylinder Two (<a href=\"http:\/\/chriszabriskie.com\/cylinders\/\">http:\/\/chriszabriskie.com\/cylinders\/<\/a>) by Chris Zabriskie (<a href=\"http:\/\/chriszabriskie.com\/);\">http:\/\/chriszabriskie.com\/);<\/a> licensed under a Creative Commons Attribution license (<a href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">https:\/\/creativecommons.org\/licenses\/by\/4.0\/<\/a>)<br \/> \u25ba \u201cFable\u201d by Stephen Keech, licensed through SoundStripe.com: <a href=\"https:\/\/app.soundstripe.com\/songs\/6312\">https:\/\/app.soundstripe.com\/songs\/6312<\/a><br \/> \u25ba \u201cSelha\u201d by Stephen Keech, licensed through SoundStripe.com: <a href=\"https:\/\/app.soundstripe.com\/songs\/7102\">https:\/\/app.soundstripe.com\/songs\/7102<\/a><\/p>\n<p>Further reading and resources:<br \/> \u25ba Echeverria, F., Klinkhammer, G. &amp; Thorne, K. S. (1991), \u201cBilliard balls in wormhole spacetimes with closed timelike curves: Classical theory\u201d, Phys. Rev. D., 44, 1077: <a href=\"https:\/\/ui.adsabs.harvard.edu\/abs\/1991PhRvD\">https:\/\/ui.adsabs.harvard.edu\/abs\/1991PhRvD<\/a>\u202644.1077E\/abstract.<br \/> \u25ba S. Kalyana Rama &amp; Siddhartha Sen (1994), \u201cInconsistent Physics in the Presence of Time Machines\u201d: <a href=\"https:\/\/arxiv.org\/abs\/gr-qc\/9410031v1\">https:\/\/arxiv.org\/abs\/gr-qc\/9410031v1<\/a><br \/> \u25ba Stephen Hawking (1992), \u201cChronology protection conjecture\u201d, Phys. Rev. D., 46603: <a href=\"https:\/\/ui.adsabs.harvard.edu\/abs\/1992PhRvD\">https:\/\/ui.adsabs.harvard.edu\/abs\/1992PhRvD<\/a>\u202646\u2026603H\/abstract.<br \/> \u25ba Max Tegmark (1997), \u201cOn the dimensionality of space time\u201d, CQG, 14, L69: <a href=\"https:\/\/arxiv.org\/abs\/gr-qc\/9702052\">https:\/\/arxiv.org\/abs\/gr-qc\/9702052<\/a><\/p>\n<p>Films clips used:<\/p>\n<div class=\"more-link-wrapper\"> <a class=\"more-link\" href=\"https:\/\/lifeboat.com\/blog\/2022\/12\/traveling-back-in-time\">Continue reading \u201cTraveling Back in Time\u201d | &gt;<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Backwards through time? We travel forwards every day, but traveling back could let us change our past, visit old friends, or manipulate the timeline to our benefit\u2026 Although our knowledge of space and time remains incomplete, we can still use what we know to consider possible time machines. But what kind of paradoxes would this [\u2026]<\/p>\n","protected":false},"author":661,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,32,42,219,1514,1515],"tags":[],"class_list":["post-152738","post","type-post","status-publish","format-standard","hentry","category-cosmology","category-education","category-media-arts","category-physics","category-space-travel","category-time-travel"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/152738","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/661"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=152738"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/152738\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=152738"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=152738"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=152738"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}