Dita \u00ebsht\u00eb m\u00eb e shkurt\u00ebr – toka rrotullohet me shpejt\u00ebsi rekord<\/p>\n
A ndiheni sikur dita po ik\u00ebn? Ndoshta nuk \u00ebsht\u00eb rast\u00ebsi. <\/p>\n
Toka ka filluar t\u00eb rrotullohet m\u00eb shpejt dhe k\u00ebt\u00eb ver\u00eb u thye nj\u00eb rekord i ri.
\nEdhe n\u00ebse marzhet jan\u00eb minimale, mund t\u00eb b\u00ebj\u00eb nj\u00eb ndryshim t\u00eb madh n\u00eb m\u00ebnyr\u00ebn se si ne num\u00ebrojm\u00eb koh\u00ebn – dhe t\u00eb shkaktoj\u00eb q\u00eb faqet t\u00eb rr\u00ebzohen. <\/p>\n
M\u00eb 29 qershor t\u00eb k\u00ebsaj vere, toka ishte me nxitim. N\u00eb vend t\u00eb koh\u00ebs s\u00eb zakonshme t\u00eb rrotullimit prej 24 or\u00ebsh, planetit iu desh\u00ebn 1.59 milisekonda. Dhe nuk ishte hera e par\u00eb q\u00eb planeti yn\u00eb rrotullohej m\u00eb shpejt se zakonisht.<\/p>\n
– Ka disa koh\u00eb q\u00eb vazhdon. <\/p>\n
Toka \u00ebsht\u00eb p\u00ebrshpejtuar mjaft \u00e7udit\u00ebrisht q\u00eb nga viti 2015. <\/p>\n
Dita n\u00eb fjal\u00eb ishte pak m\u00eb e shkurt\u00ebr se nj\u00eb dit\u00eb m\u00eb par\u00eb dhe e nes\u00ebrmja, megjith\u00ebse nuk ishte dramatike, thot\u00eb Judah Levine, profesoresh\u00eb e fizik\u00ebs n\u00eb Universitetin e Kolorados Boulder, e cila nd\u00ebr t\u00eb tjera , punon p\u00ebr t\u00eb p\u00ebrcaktuar koh\u00ebn standarde amerikane.<\/p>\n
E habitshme
\nPse toka shpejtoi papritur \u00ebsht\u00eb disi e paqart\u00eb. P\u00ebr Fred Watson, nj\u00eb profesor dhe k\u00ebshilltar i qeveris\u00eb australiane p\u00ebr \u00e7\u00ebshtjet astronomike, dita e agj\u00ebrimit erdhi si nj\u00eb surpriz\u00eb.<\/p>\n
Disa faktor\u00eb mund t\u00eb shpjegojn\u00eb rritjen e papritur t\u00eb rrotullimit. Nd\u00ebr t\u00eb tjera, b\u00ebhet fjal\u00eb p\u00ebr marr\u00ebdh\u00ebniet midis planetit dhe atmosfer\u00ebs, dhe midis pjes\u00ebs s\u00eb jashtme t\u00eb planetit dhe b\u00ebrtham\u00ebs s\u00eb tij. Ngrohja globale me shkrirjen e kapak\u00ebve t\u00eb akullit n\u00eb pole mund t\u00eb ket\u00eb gjithashtu nj\u00eb efekt.<\/p>\n
– Toka nuk \u00ebsht\u00eb sferike. Dhe ka nj\u00eb brendshme t\u00eb l\u00ebngshme dhe nj\u00eb mantel l\u00ebviz\u00ebs me kore sip\u00ebr. Kur shtoni edhe l\u00ebng n\u00eb sip\u00ebrfaqe, me oqeanet, dhe nj\u00eb atmosfer\u00eb q\u00eb l\u00ebviz p\u00ebrreth dhe ndikon shum\u00eb, mund t’i shihni k\u00ebto luhatje, thot\u00eb Watson.<\/p>\n
Nj\u00eb njeri padyshim nuk e v\u00ebren rrotullimin e p\u00ebrshpejtuar, madje as n\u00eb planin afatgjat\u00eb. <\/p>\n
Problemi \u00ebsht\u00eb se \u00ebsht\u00eb vendosur nd\u00ebrkomb\u00ebtarisht q\u00eb llogaritja jon\u00eb e koh\u00ebs, e cila normalisht ndjek or\u00ebt atomike, duhet t\u00eb pajtohet me rrotullimin e tok\u00ebs.<\/p>\n
– N\u00ebse nuk b\u00ebni asgj\u00eb p\u00ebr k\u00ebt\u00eb, toka do t\u00eb jet\u00eb jasht\u00eb sinkronizimit me or\u00ebt atomike dhe legjislacioni i sot\u00ebm nd\u00ebrkomb\u00ebtar do t\u00eb thot\u00eb q\u00eb n\u00ebse ato ndryshojn\u00eb p\u00ebr m\u00eb shum\u00eb se nj\u00eb sekond\u00eb, duhet t’i rregulloni ato, thot\u00eb Watson.
\nArdhja e dyt\u00eb e k\u00ebrcimit negativ
\nN\u00eb dekadat e fundit, toka \u00ebsht\u00eb rrotulluar m\u00eb ngadal\u00eb dhe kjo \u00ebsht\u00eb zgjidhur me sekonda t\u00eb brishta. Deri m\u00eb tani, 37 sekonda t\u00eb brisht\u00eb jan\u00eb prezantuar q\u00eb nga viti 1972. Praktikisht, ora sh\u00ebnon 23.59.59, 23.59.60, 0.00.00 e k\u00ebshtu me radh\u00eb.
\n– Her\u00ebn e par\u00eb ishin dhjet\u00eb sekonda t\u00eb k\u00ebrcimit dhe 27 sekonda t\u00eb tjera q\u00eb at\u00ebher\u00eb, shpjegon Levine.
\nTani, n\u00eb vend t\u00eb k\u00ebsaj, mund t\u00eb ndodh\u00eb q\u00eb nj\u00eb sekond\u00eb n\u00eb pak vite mund t\u00eb duhet t\u00eb hiqet, n\u00ebse rrotullimi i Tok\u00ebs vazhdon t\u00eb jet\u00eb m\u00eb i shpejt\u00eb se m\u00eb par\u00eb.
\n– Mund t\u00eb na duhet t\u00eb prezantojm\u00eb nj\u00eb k\u00ebrcim t\u00eb dyt\u00eb negativ n\u00eb gjasht\u00eb deri n\u00eb shtat\u00eb vjet, por kjo \u00ebsht\u00eb nj\u00eb pasiguri e madhe, thot\u00eb Levine.<\/p>\n
Nuk ka ndodhur kurr\u00eb m\u00eb par\u00eb, madje edhe sekondat e zakonshme t\u00eb k\u00ebrcimit jan\u00eb n\u00eb nj\u00eb far\u00eb m\u00ebnyre nj\u00eb plag\u00eb, ve\u00e7an\u00ebrisht n\u00eb bot\u00ebn e teknologjis\u00eb. Sipas Meta (ish-Facebook), sekondat e brishta \u00e7ojn\u00eb n\u00eb programe t\u00eb prishura dhe t\u00eb dh\u00ebna t\u00eb korruptuara. P\u00ebr shembull, faqet Reddit dhe Linkedin u rr\u00ebzuan kur prezantuan nj\u00eb sekond\u00eb t\u00eb shpejt\u00eb n\u00eb 2012, dhe e nj\u00ebjta gj\u00eb ndodhi me Instagram dhe Netflix n\u00eb 2015. Twitter kishte probleme me gabimet n\u00eb koh\u00ebn kur p\u00ebrdoruesit kishin postuar n\u00eb Twitter.
\nSe si do t\u00eb ndikoj\u00eb nj\u00eb sekond\u00eb e k\u00ebrcimit negativ \u00ebsht\u00eb e paqart\u00eb, por Meta paralajm\u00ebron “efekte shkat\u00ebrruese n\u00eb softuerin q\u00eb mb\u00ebshtetet n\u00eb or\u00eb”.
\n\u201cAta q\u00eb menaxhojn\u00eb infrastruktur\u00ebn harduerike vuajn\u00eb p\u00ebr \u00e7do sekond\u00eb\u201d, shkruan kompania, e cila thjesht k\u00ebrkon q\u00eb sistemi t\u00eb hiqet.
\n“Pa diskutime”
\nLevine thot\u00eb se m\u00ebnyra e kompanive t\u00eb teknologjis\u00eb p\u00ebr t\u00eb zgjidhur problemin e dyt\u00eb t\u00eb shpejt\u00eb \u00ebsht\u00eb nj\u00eb fajtor n\u00eb dram\u00eb. Gjigant\u00eb t\u00eb ndrysh\u00ebm t\u00eb teknologjis\u00eb kan\u00eb zgjedhur metoda t\u00eb ndryshme, duke p\u00ebrfshir\u00eb “nxjerrjen” e sekond\u00ebs shtes\u00eb p\u00ebr nj\u00eb periudh\u00eb m\u00eb t\u00eb gjat\u00eb. N\u00eb Meta – si\u00e7 quhet metoda – e dyta shtrihet n\u00eb 17 or\u00eb p\u00ebr t\u00eb shmangur p\u00ebrplasjet. Kompani t\u00eb tjera p\u00ebrdorin teknika t\u00eb tjera.
\n– K\u00ebto metoda jan\u00eb shpikur nga disa kompani, gj\u00eb q\u00eb \u00ebsht\u00eb p\u00ebr t\u00eb ardhur keq, thot\u00eb Levine dhe vazhdon:<\/p>\n
– Ata kan\u00eb vendosur se \u00e7far\u00eb \u00ebsht\u00eb m\u00eb e mira p\u00ebr ta pa diskutime se \u00e7far\u00eb \u00ebsht\u00eb m\u00eb e mira nga perspektiva nd\u00ebrkomb\u00ebtare.
\nPor pse duhet t\u00eb shqet\u00ebsohemi me sekondat e brisht\u00eb? Pak m\u00eb shum\u00eb se gjysm\u00eb minut\u00eb n\u00eb 50 vjet nuk prek asnj\u00eb person t\u00eb zakonsh\u00ebm.
\nLevine pajtohet.<\/p>\n
– Por koha standarde nd\u00ebrkomb\u00ebtare p\u00ebrdoret gjithashtu p\u00ebr q\u00ebllime lundrimi dhe astronomike, dhe \u00ebsht\u00eb lidhja midis koh\u00ebs dhe pozicionit t\u00eb Tok\u00ebs.<\/p>\n
Tabelat e sakta
\nPozicionet e trupave t\u00eb ndrysh\u00ebm qiellor\u00eb futen n\u00eb tabela shum\u00eb t\u00eb sakta, dhe ato shpejt b\u00ebhen t\u00eb pasakta n\u00ebse koha – ose m\u00eb mir\u00eb dita – fillon t\u00eb ik\u00eb. N\u00eb fund, do t\u00eb p\u00ebrballeshim me dy koh\u00eb standarde krejt\u00ebsisht t\u00eb ndryshme.
\n– Pra, \u00ebsht\u00eb e r\u00ebnd\u00ebsishme q\u00eb t\u00eb ket\u00eb nj\u00eb lidhje midis koh\u00ebs astronomike dhe koh\u00ebs atomike, dhe pa sekonda t\u00eb brisht\u00eb, kjo lidhje prishet gradualisht dhe ka nj\u00eb klas\u00eb t\u00eb t\u00ebr\u00eb aplikacionesh dhe botimesh q\u00eb do t\u00eb shkat\u00ebrroheshin nga nj\u00eb zgjidhje e till\u00eb, thot\u00eb Levine<\/p>\n","protected":false},"excerpt":{"rendered":"
Dita \u00ebsht\u00eb m\u00eb e shkurt\u00ebr – toka rrotullohet me shpejt\u00ebsi rekord A ndiheni sikur dita po ik\u00ebn? Ndoshta nuk \u00ebsht\u00eb rast\u00ebsi. Toka ka filluar t\u00eb rrotullohet m\u00eb shpejt dhe k\u00ebt\u00eb ver\u00eb u thye nj\u00eb rekord i ri. Edhe n\u00ebse marzhet jan\u00eb minimale, mund t\u00eb b\u00ebj\u00eb nj\u00eb ndryshim t\u00eb madh n\u00eb m\u00ebnyr\u00ebn se si ne num\u00ebrojm\u00eb […]<\/p>\n","protected":false},"author":2,"featured_media":27325,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[107],"tags":[],"class_list":{"0":"post-27324","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-kuriozitete"},"_links":{"self":[{"href":"https:\/\/neutrale.al\/index.php\/wp-json\/wp\/v2\/posts\/27324","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/neutrale.al\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/neutrale.al\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/neutrale.al\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/neutrale.al\/index.php\/wp-json\/wp\/v2\/comments?post=27324"}],"version-history":[{"count":1,"href":"https:\/\/neutrale.al\/index.php\/wp-json\/wp\/v2\/posts\/27324\/revisions"}],"predecessor-version":[{"id":27326,"href":"https:\/\/neutrale.al\/index.php\/wp-json\/wp\/v2\/posts\/27324\/revisions\/27326"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/neutrale.al\/index.php\/wp-json\/wp\/v2\/media\/27325"}],"wp:attachment":[{"href":"https:\/\/neutrale.al\/index.php\/wp-json\/wp\/v2\/media?parent=27324"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/neutrale.al\/index.php\/wp-json\/wp\/v2\/categories?post=27324"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/neutrale.al\/index.php\/wp-json\/wp\/v2\/tags?post=27324"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}