{"id":129643,"date":"2024-09-07T11:34:23","date_gmt":"2024-09-07T11:34:23","guid":{"rendered":"https:\/\/news.talkwithrattan.com\/index.php\/2024\/09\/07\/readers-discuss-black-holes-trippy-effects-on-time-banned-swimsuits\/"},"modified":"2024-09-07T11:34:23","modified_gmt":"2024-09-07T11:34:23","slug":"readers-discuss-black-holes-trippy-effects-on-time-banned-swimsuits","status":"publish","type":"post","link":"https:\/\/news.talkwithrattan.com\/index.php\/2024\/09\/07\/readers-discuss-black-holes-trippy-effects-on-time-banned-swimsuits\/","title":{"rendered":"Readers discuss black holes\u2019 trippy effects on time, banned swimsuits"},"content":{"rendered":"<div style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/i0.wp.com\/www.sciencenews.org\/wp-content\/uploads\/2024\/07\/071324_bear_cover_1000.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Readers discuss black holes\u2019 trippy effects on time, banned swimsuits\" title=\"Readers discuss black holes\u2019 trippy effects on time, banned swimsuits\" \/><\/div> \r\n<br><div style=\"clear:both\">\n<style><![CDATA[\n.subscribe-cta {\n  color: black;\n  margin-top: 0px;\n  background-color: #EDD695;\n  background-size: cover;\n  padding: 20px;\n  border: 1px solid black;\n  border-top: 5px solid black;\n  clear: both;\n}\n\n.centered {\n  text-align:center;\n  margin:auto;\n}\n\n]]><\/style>\n<!-- \/wp:html -->\n\n<!-- wp:group {\"className\":\"subscribe-cta\"} -->\n<div id=\"subscribeConversion\" class=\"wp-block-group subscribe-cta\"><!-- wp:heading {\"textAlign\":\"center\",\"style\":{\"typography\":{\"fontSize\":\"2em\"}}} -->\n<h2 class=\"wp-block-heading has-text-align-center\" style=\"font-size:2em\">Extreme Climate Survey<\/h2>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph {\"align\":\"center\",\"style\":{\"typography\":{\"fontSize\":\"1.1em\"}}} -->\n<p class=\"has-text-align-center\" style=\"font-size:1.1em\"><strong><em>Science News <\/em>is collecting reader questions about how to navigate our planet&#8217;s changing climate.<\/strong><\/p>\n<p class=\"has-text-align-center\" style=\"font-size:1.1em\">What do you want to know about extreme heat and how it can lead to extreme weather events?<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:spacer {\"height\":\"20px\"} -->\n\n<!-- \/wp:spacer -->\n\n<!-- wp:buttons {\"className\":\"centered\",\"layout\":{\"type\":\"flex\",\"justifyContent\":\"center\"}} -->\n\n<!-- \/wp:buttons --><\/div>\n<!-- \/wp:group -->\n\n\n<p>\u201cThe seeming paradox arises because of the extreme time dilation near the event horizon,\u201d says theoretical physicist <strong>Eduardo Mart\u00edn-Mart\u00ednez<\/strong> of the University of Waterloo in Canada. From the perspective of a distant observer, time seems to progress more slowly near the black hole\u2019s edge. So infalling matter appears frozen in time, never crossing the event horizon, <strong>Mart\u00edn-Mart\u00ednez<\/strong> says. Light emitted by that matter becomes increasingly stretched to longer wavelengths, or redshifted, and eventually becomes invisible.<\/p>\n\n\n\n<p>\u201cHowever, from the point of view of the infalling material itself, time is experienced normally,\u201d <strong>Mart\u00edn-Mart\u00ednez<\/strong> says. The matter crosses the event horizon after a finite amount of time and moves toward the black hole\u2019s center, called the singularity. \u201cIf the distant observer were to approach the horizon themselves, once they are close enough, they would see matter cross the horizon at a finite time, and they themselves would cross the horizon at a finite proper time,\u201d <strong>Mart\u00edn-Mart\u00ednez<\/strong> says.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Getting up to speed<\/h2>\n\n\n\n<p><em>If elite athletes are to ever reach humans\u2019 projected maximum speed in running or swimming, they will need perfect technique, <strong>Erin Garcia de Jes\u00fas <\/strong>reported in \u201c<\/em><a href=\"https:\/\/www.sciencenews.org\/article\/olympics-world-records-how-fast-dash\"><em>What\u2019s the human speed limit?<\/em><\/a><em>\u201d (<\/em>SN: 7\/13\/24 &amp; 7\/27\/24, p. 36).<\/p>\n\n\n\n<p>In the 2000s, a now-banned swimsuit line from Speedo ushered a wave of new records in the 50-meter freestyle, <strong>Garcia de Jes\u00fas<\/strong> reported. The suits compressed swimmers\u2019 bodies and made them more buoyant.<\/p>\n\n\n\n<p>Given that compression tends to increase density, which decreases buoyancy, reader <strong>David H. Brands<\/strong> asked how the suits could have had such an effect.<\/p>\n\n\n\n<p>These were two parallel effects, not one leading to the other, says associate news editor <strong>Christopher Crockett<\/strong>. The compression made the swimmers\u2019 bodies more streamlined and thus reduced drag. At the same time, the suits also trapped air around swimmers\u2019 bodies, increasing buoyancy, <strong>Crockett<\/strong> says.<\/p>\n\n\t\t\t<\/div>\r\n<br>\r\n<br><a href=\"https:\/\/www.sciencenews.org\/article\/feedback-black-hole-banned-swimsuits\">Source link <\/a>","protected":false},"excerpt":{"rendered":"<p>Extreme Climate Survey Science News is collecting reader questions about how to navigate our planet&#8217;s changing climate. What do you want to know about extreme heat and how it can lead to extreme weather events? \u201cThe seeming paradox arises because of the extreme time dilation near the event horizon,\u201d says theoretical physicist Eduardo Mart\u00edn-Mart\u00ednez of [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":129644,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":"","fifu_image_url":"https:\/\/i0.wp.com\/www.sciencenews.org\/wp-content\/uploads\/2024\/07\/071324_bear_cover_1000.jpg","fifu_image_alt":"","footnotes":""},"categories":[606],"tags":[2836,5831,4287,14786,7267,4885,69311,222,78525],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts\/129643"}],"collection":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/comments?post=129643"}],"version-history":[{"count":1,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts\/129643\/revisions"}],"predecessor-version":[{"id":129645,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts\/129643\/revisions\/129645"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/media\/129644"}],"wp:attachment":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/media?parent=129643"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/categories?post=129643"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/tags?post=129643"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}