{"id":1208285,"date":"2023-12-02T06:10:00","date_gmt":"2023-12-02T11:10:00","guid":{"rendered":"https:\/\/www.prime-wow.com\/?p=1208285"},"modified":"2023-12-02T06:10:00","modified_gmt":"2023-12-02T11:10:00","slug":"roar-of-cicadas-was-so-loud-it-was-picked-up-by-fiber-optic-cables","status":"publish","type":"post","link":"https:\/\/www.prime-wow.com\/?p=1208285","title":{"rendered":"Roar of cicadas was so loud, it was picked up by fiber-optic cables"},"content":{"rendered":"
\n
\n \"cicada\"<\/p>\n

Enlarge<\/a> \/<\/span> BUZZ BUZZ BUZZ BUZZ (credit: astrida via Getty Images<\/a>)<\/p>\n<\/figure>\n

<\/div>\n

One of the world\u2019s most peculiar test beds stretches above Princeton, New Jersey. It\u2019s a fiber optic cable strung between three utility poles that then runs underground before feeding into an \u201cinterrogator.\u201d This device fires a laser through the cable and analyzes the light that bounces back. It can pick up tiny perturbations in that light caused by seismic activity or even loud sounds, like from a passing ambulance. It\u2019s a newfangled technique known as distributed acoustic sensing, or DAS.<\/p>\n

Because DAS can track seismicity, other scientists are increasingly using it to monitor earthquakes<\/a> and volcanic activity<\/a>. (A buried system is so sensitive, in fact, that it can detect people walking and driving above<\/a>.) But the scientists in Princeton just stumbled upon a rather \u2026 noisier use of the technology. In the spring of 2021, Sarper Ozharar\u2014a physicist at NEC Laboratories, which operates the Princeton test bed\u2014noticed a strange signal in the DAS data<\/a>. \u201cWe realized there were some weird things happening,\u201d says Ozharar. \u201cSomething that shouldn\u2019t be there. There was a distinct frequency buzzing everywhere.\u201d<\/p>\n

<\/div>\n

Read 11 remaining paragraphs<\/a> | Comments<\/a><\/p>\n


\n
\nSource: Ars Technica – Roar of cicadas was so loud, it was picked up by fiber-optic cables<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Enlarge \/ BUZZ BUZZ BUZZ BUZZ (credit: astrida via Getty Images) One of the world\u2019s most peculiar test beds stretches above Princeton, New Jersey. It\u2019s a fiber optic cable strung between three utility poles that then runs underground before feeding … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":1208286,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27,110],"tags":[73],"class_list":["post-1208285","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ars-technica","category-unfiltered-rss","tag-ars-technica"],"_links":{"self":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts\/1208285","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1208285"}],"version-history":[{"count":0,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/posts\/1208285\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=\/wp\/v2\/media\/1208286"}],"wp:attachment":[{"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1208285"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1208285"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.prime-wow.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1208285"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}