{"id":259988,"date":"2022-10-19T19:30:00","date_gmt":"2022-10-19T19:30:00","guid":{"rendered":"https:\/\/omni48.com\/?p=259988"},"modified":"2022-10-19T19:40:43","modified_gmt":"2022-10-19T19:40:43","slug":"refining-the-clock-s-second-takes-time-and-lasers","status":"publish","type":"post","link":"https:\/\/omni48.com\/news\/refining-the-clock-s-second-takes-time-and-lasers","title":{"rendered":"Refining the clock&#8217;s second takes time&#8212;and lasers"},"content":{"rendered":"<p>Meteorologists hope optical clocks will provide a redefined &#8216;second&#8217; by 2030. Deposit Photos As technology progresses, so does our ability to more precisely delineate the passage of time. Since their introduction in 1967, the standard bearers of accurate timekeeping have been atomic clocks, whose caesium-33 atoms&#8217; oscillations serve as a reference point for a single &#8220;second.&#8221; But as a new paper published with Nature earlier in this month reminds us, atomic clocks are so literally and metaphorically yesterday&#8217;s news. According to the publication&#8217;s writeup yesterday, a group of researchers at the University of Science and Technology of China in Hefei recently synced optical clocks located 113 kilometers (about 70.2 miles) apart using precise pulses of laser light&#8212;roughly seven times farther than that of the previous record. The milestone represents a significant step forward for metrologists, scientists who study measurement, to &#8220;redefine&#8221; the second by the end of the decade . Once successful, their studies could be an estimated 100 times<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Meteorologists hope optical clocks will provide a redefined &#8216;second&#8217; by 2030. Deposit PhotosA Chinese research team set a new distance record for syncing two timepieces thanks to some very precise<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1,348],"tags":[],"class_list":["post-259988","post","type-post","status-publish","format-standard","hentry","category-news","category-science"],"acf":[],"_links":{"self":[{"href":"https:\/\/omni48.com\/api\/wp\/v2\/posts\/259988","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/omni48.com\/api\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/omni48.com\/api\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/omni48.com\/api\/wp\/v2\/comments?post=259988"}],"version-history":[{"count":0,"href":"https:\/\/omni48.com\/api\/wp\/v2\/posts\/259988\/revisions"}],"wp:attachment":[{"href":"https:\/\/omni48.com\/api\/wp\/v2\/media?parent=259988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/omni48.com\/api\/wp\/v2\/categories?post=259988"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/omni48.com\/api\/wp\/v2\/tags?post=259988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}