{"id":225513,"date":"2025-11-20T09:09:26","date_gmt":"2025-11-20T15:09:26","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/11\/it-took-physicists-50-years-to-prove-einstein-right-about-this"},"modified":"2025-11-20T09:09:26","modified_gmt":"2025-11-20T15:09:26","slug":"it-took-physicists-50-years-to-prove-einstein-right-about-this","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/11\/it-took-physicists-50-years-to-prove-einstein-right-about-this","title":{"rendered":"It Took Physicists 50 Years To Prove Einstein Right About This"},"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\/2IwZB9PdJVw?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope;\n   picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>Increase your problem solving skills with Brilliant! Start learning science and maths for free at <a href=\"https:\/\/brilliant.org\/sabine\/\">https:\/\/brilliant.org\/sabine\/<\/a> and get 20% off a premium subscription, which includes daily unlimited access!<\/p>\n<p>Over a century ago, Einstein wrote his theories of special relativity and general relativity. Within those theories, he predicted that, as an object moves faster, it slightly contracts in length. However, 50 years later Penrose and Terrell predicted that what one would see is instead that the object is rotated. In a recent experiment, physicists proved that this Penrose-Terrell effect is actually real. Let\u2019s take a look.<\/p>\n<p>Paper: <a href=\"https:\/\/www.nature.com\/articles\/s4200\">https:\/\/www.nature.com\/articles\/s4200<\/a>\u2026 to what I say: The object (frame) they used is obviously not a cube (as you can see in the photo), it has dimensions of 1 \u00d7 1 \u00d7 0.6 m. \ud83e\udd13 Check out my new quiz app \u279c <a href=\"http:\/\/quizwithit.com\/\">http:\/\/quizwithit.com\/<\/a> \ud83d\udcda Buy my book \u279c <a href=\"https:\/\/amzn.to\/3HSAWJW\">https:\/\/amzn.to\/3HSAWJW<\/a> \ud83d\udc8c Support me on Donorbox \u279c <a href=\"https:\/\/donorbox.org\/swtg\">https:\/\/donorbox.org\/swtg<\/a> \ud83d\udcdd Transcripts and written news on Substack \u279c <a href=\"https:\/\/sciencewtg.substack.com\/\">https:\/\/sciencewtg.substack.com\/<\/a> \ud83d\udc49 Transcript with links to references on Patreon \u279c <img alt=\"\" class=\"\"> \/ sabine \ud83d\udce9 Free weekly science newsletter \u279c <a href=\"https:\/\/sabinehossenfelder.com\/newsle\">https:\/\/sabinehossenfelder.com\/newsle<\/a>\u2026 \ud83d\udc42 Audio only podcast \u279c <a href=\"https:\/\/open.spotify.com\/show\/0MkNfXl\">https:\/\/open.spotify.com\/show\/0MkNfXl<\/a>\u2026 \ud83d\udd17 Join this channel to get access to perks \u279c <img alt=\"\" class=\"\"> \/ <a href=\"https:\/\/twitter.com\/sabinehossenfelder\">@sabinehossenfelder<\/a> #science #sciencenews #physics #relativity.<\/p>\n<p>Correction to what I say: The object (frame) they used is obviously not a cube (as you can see in the photo), it has dimensions of 1 \u00d7 1 \u00d7 0.6 m.<\/p>\n<p>\ud83e\udd13 Check out my new quiz app \u279c <a href=\"http:\/\/quizwithit.com\/\">http:\/\/quizwithit.com\/<\/a><br \/> \ud83d\udcda Buy my book \u279c <a href=\"https:\/\/amzn.to\/3HSAWJW\">https:\/\/amzn.to\/3HSAWJW<\/a><br \/> \ud83d\udc8c Support me on Donorbox \u279c <a href=\"https:\/\/donorbox.org\/swtg\">https:\/\/donorbox.org\/swtg<\/a>.<br \/> \ud83d\udcdd Transcripts and written news on Substack \u279c <a href=\"https:\/\/sciencewtg.substack.com\/\">https:\/\/sciencewtg.substack.com\/<\/a><br \/> \ud83d\udc49 Transcript with links to references on Patreon \u279c \/ sabine.<br \/> \ud83d\udce9 Free weekly science newsletter \u279c <a href=\"https:\/\/sabinehossenfelder.com\/newsle\">https:\/\/sabinehossenfelder.com\/newsle<\/a>\u2026<br \/> \ud83d\udc42 Audio only podcast \u279c <a href=\"https:\/\/open.spotify.com\/show\/0MkNfXl\">https:\/\/open.spotify.com\/show\/0MkNfXl<\/a>\u2026<br \/> \ud83d\udd17 Join this channel to get access to perks \u279c<br \/> \/ <a href=\"https:\/\/twitter.com\/sabinehossenfelder\">@sabinehossenfelder<\/a>.<\/p>\n<p>#science #sciencenews #physics #relativity<\/p>\n<div class=\"more-link-wrapper\"> <a class=\"more-link\" href=\"https:\/\/lifeboat.com\/blog\/2025\/11\/it-took-physicists-50-years-to-prove-einstein-right-about-this\">Continue reading \u201cIt Took Physicists 50 Years To Prove Einstein Right About This\u201d | &gt;<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Increase your problem solving skills with Brilliant! Start learning science and maths for free at https:\/\/brilliant.org\/sabine\/ and get 20% off a premium subscription, which includes daily unlimited access! Over a century ago, Einstein wrote his theories of special relativity and general relativity. Within those theories, he predicted that, as an object moves faster, it slightly [\u2026]<\/p>\n","protected":false},"author":661,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,219],"tags":[],"class_list":["post-225513","post","type-post","status-publish","format-standard","hentry","category-open-access","category-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/225513","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=225513"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/225513\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=225513"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=225513"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=225513"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}