{"id":2891,"date":"2025-11-02T16:21:58","date_gmt":"2025-11-02T14:21:58","guid":{"rendered":"https:\/\/zoobrasov.ro\/planetariu\/?p=2891"},"modified":"2025-11-02T16:21:58","modified_gmt":"2025-11-02T14:21:58","slug":"sa-ne-imaginam-ca-un-asteroid-loveste-otopeniul","status":"publish","type":"post","link":"https:\/\/zoobrasov.ro\/planetariu\/sa-ne-imaginam-ca-un-asteroid-loveste-otopeniul\/","title":{"rendered":"S\u0103 ne imagin\u0103m c\u0103 un asteroid love\u0219te Otopeniul!"},"content":{"rendered":"

S<\/span><\/span>\u0103 ne imagin\u0103m c\u0103 ne love\u0219te un bolovan, <\/span><\/span>unul de c\u00e2teva sute de metri \u00een diametru. Ce s-ar \u00eent\u00e2mpla dac\u0103 ar c\u0103dea la Otopeni? Cum s-ar sim\u021bi la Bra\u0219ov?<\/span><\/span><\/span><\/h3>\n

A\u021bi auzit de \u201dZeul \u00centunericului\u201d? Dar de Apophis? Apophis a fost du\u0219manul care \u00eencerca s\u0103-l distrug\u0103 pe Ra, zeul egiptean al Soarelui. \u00cen acela\u0219i timp, a fost un personaj negativ \u00een serialul SF, Stargate SG-1, serialul \u00een care oamenii foloseau ni\u0219te portaluri pentru a trece spre alte lumi. \u0218i a ajuns \u0219i numele unui asteroid. Presa s-a gr\u0103bit s\u0103-l numeasc\u0103 \u201dZeul \u00centunericului\u201d! Pentru o perioad\u0103 de timp s-a crezut c\u0103 Apophis va lovi Terra, ceea ce s-a adev\u0103rit c\u0103 nu este adev\u0103rat. Totu\u0219i, noi o s\u0103 ne imagin\u0103m c\u0103 acest bolovan chiar ne \u0219i love\u0219te. Un asteroid cu un diametru mediu de 370 de metri, cu o densitate \u00een jurul a 2.600 kg\/m3 \u0219i care dac\u0103 va lovi, va lovi cu o vitez\u0103 de aproape 20 de km\/s spre P\u0103m\u00e2nt! \u0218i cade peste Otopeni!<\/span><\/span><\/p>\n

\"\"<\/p>\n

Ce se \u00eent\u00e2mpl\u0103 la Otopeni<\/span><\/span><\/span><\/strong><\/p>\n

Impactul va avea o energie de aproape 3 megatone TNT (cea mai mare bomb\u0103 cu hidrogen detonat\u0103 vreodat\u0103, Tsar Bomba, a fost de aproximativ 50 megatone) \u0219i nu va produce schimb\u0103ri globale semnificative, nu va schimba \u00eenclinarea axei Terrei, mai pu\u021bin dec\u00e2t a 500 parte dintr-un grad, \u0219i nici nu va modifica orbita P\u0103m\u00e2ntului<\/span><\/span><\/span><\/p>\n

Otopeniul va fi f\u0103cut una cu P\u0103m\u00e2ntul, g\u00e2ndi\u021bi-v\u0103 numai la faptul c\u0103 ini\u021bial craterul va avea aproape 5 kilometri \u0219i o ad\u00e2ncime pu\u021bin peste 1,5 kilometri, ca la final, acesta s\u0103 ajung\u0103 la un diametru de 6 kilometri \u0219i o ad\u00e2ncime de doar 500 de metri. Otopeniul are undeva la 6 kilometri diametru \u0219i vreo 25.000 de oameni r\u0103sp\u00e2ndi\u021bi acolo. <\/span><\/span><\/span>Totul va disp\u0103rea!<\/span><\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Cum se va sim\u021bi de la Bucure\u0219ti<\/span><\/span><\/span><\/span><\/strong><\/p>\n

Cum se va sim\u021bi de la Bucure\u0219ti?\u00a0<\/span><\/span><\/span><\/span>Se vede <\/span><\/span><\/span>o explozie, o minge de foc, cu un diametru pu\u021bin peste 4 kilometri, de aproape 50 de ori mai mare dec\u00e2t Soarele, <\/span><\/span><\/span>care <\/span><\/span><\/span>o s\u0103 lumineze de vreo 215 ori mai tare. <\/span><\/span><\/span>Dac\u0103 sunt oameni <\/span><\/span><\/span>pe strad\u0103, <\/span><\/span><\/span>vor avea <\/span><\/span><\/span>arsuri de gradul 3, hainele <\/span><\/span><\/span>vor <\/span><\/span><\/span>\u00eencep s\u0103 ard\u0103, ca de altfel \u0219i iarba, copacii mai usca\u021bi \u0219i ziarul din m\u00e2n\u0103 <\/span><\/span><\/span>oamenilor<\/span><\/span><\/span>, dac\u0103 mai are cineva a\u0219a ceva \u0219i nu un telefon. Toate astea se <\/span><\/span><\/span>vor <\/span><\/span><\/span>\u00eent\u00e2mpl<\/span><\/span><\/span>a<\/span><\/span><\/span> la mai pu\u021bin de o secund\u0103 de la impact. \u00cent\u00e2i <\/span><\/span><\/span>se va vedea <\/span><\/span><\/span>lumina, care va orbi <\/span><\/span><\/span>pe oricine o prive\u0219te<\/span><\/span><\/span>, apoi la pu\u021bin timp v<\/span><\/span><\/span>a veni<\/span><\/span><\/span> \u0219i c\u0103ldura.<\/span><\/span><\/span><\/span><\/p>\n

La patru secunde de la impact, s<\/span><\/span><\/span>e vor sim\u021bi<\/span><\/span><\/span> cutremure. Foarte puternic<\/span><\/span><\/span>e<\/span><\/span><\/span>, aproape de scara Richter 7. Cam c\u00e2t cutremurul ce a avut loc \u00een Rom\u00e2nia \u00een 1986. Teoretic cu probleme doar la cl\u0103dirile cu risc seismic sau construite prost.<\/span><\/span><\/span><\/span><\/p>\n

La 1 minut dup\u0103, v\u00e2nturi puternice, la 374 de m\/s. De peste 1.300 de kilometri pe or\u0103! Asta \u00eenseamn\u0103 c\u0103 dac\u0103 de la cutremur nu se \u00eent\u00e2mpl\u0103 nimic, de aici <\/span><\/span><\/span>vor veni<\/span><\/span><\/span> probleme<\/span><\/span><\/span>le<\/span><\/span><\/span> foarte mari. O mare parte din cl\u0103diri vor fi puse la p\u0103m\u00e2nt, poduri<\/span><\/span><\/span>le <\/span><\/span><\/span>de asemenea, ma\u0219inile vor fi aruncate ca ni\u0219te h\u00e2rtii, peste 90% din copaci vor fi pu\u0219i la p\u0103m\u00e2nt.<\/span><\/span><\/span><\/span><\/p>\n

Sunetul va ajunge la 110 dB, \u0219i poate cauza dureri auriculare. Asta e cea mai mic\u0103 problem\u0103! <\/span><\/span><\/span>\ud83d\ude0a<\/span><\/span><\/span><\/span><\/p>\n

Ca \u00een acela\u0219i timp, ajung \u0219i ejec\u021biile dar \u00een cea mai mare parte foarte mici, o medie de 53 centimetri, un maxim probabil \u00eens\u0103 de 2 metri \u0219i jum\u0103tate.<\/span><\/span><\/span><\/p>\n

\"\"<\/p>\n

Ce se \u00eent\u00e2mpl\u0103 la Bra\u0219ov<\/span><\/span><\/span><\/strong><\/p>\n

La Bra\u0219ov, va fi mai lini\u0219te! Mult mai lini\u0219te! <\/span><\/span><\/span>S-ar putea <\/span><\/span><\/span>vedea o minge de foc cu un diametru pu\u021bin peste 2 km, de 3 ori mai mare ca Soarele, luminozitate pu\u021bin mai mare ca a Soarelui, deci f\u0103r\u0103 efecte asupra oamenilor. Cutremurul de aproape 7 grade pe scara Richter, nu va produce mai nimic, va fi sim\u021bit dup\u0103 jum\u0103tate de minut, \u0219i produce doar poate ni\u0219te sperieturi, pocnituri \u00een pere\u021bi, farfurii z\u0103ng\u0103nind. Ejec\u021biile ajung poate la 3 minute dup\u0103 impact \u0219i au m\u0103rimi medii de doar 1 milimetru, cu maxim calculat la 1 centimetru. V\u00e2ntul \u00ee\u0219i va sim\u021bit\u0103 prezen\u021ba dup\u0103 cam 8 minute, cu valori maxime de 16 m\/s (50 km\/h, o briz\u0103 de iarn\u0103 de pe T\u00e2mpa), iar din punct de vedere al intensit\u0103\u021bii sunetului, se va sim\u021bii ca un trafic greu, pe la 80 dB.<\/span><\/span><\/span><\/span><\/p>\n

Imagini: Astronomical Institute of the Charles University, Stargate SG-1<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

S\u0103 ne imagin\u0103m c\u0103 ne love\u0219te un bolovan, unul de c\u00e2teva sute de metri \u00een diametru. Ce s-ar \u00eent\u00e2mpla dac\u0103 ar c\u0103dea la Otopeni? Cum s-ar sim\u021bi la Bra\u0219ov? A\u021bi auzit de \u201dZeul \u00centunericului\u201d? Dar de Apophis? Apophis a fost du\u0219manul care \u00eencerca s\u0103-l distrug\u0103 pe Ra, zeul egiptean al Soarelui. \u00cen acela\u0219i timp, a […]\n","protected":false},"author":3,"featured_media":2892,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[53,4],"tags":[126,70,92,171,168,169,147,170,102],"class_list":["post-2891","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-sistemul-solar","tag-asteroid","tag-astronomie","tag-brasov","tag-bucureti","tag-catastrofa","tag-dezastru","tag-impact","tag-otopeni","tag-sistemul-solar"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/zoobrasov.ro\/planetariu\/wp-json\/wp\/v2\/posts\/2891","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zoobrasov.ro\/planetariu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zoobrasov.ro\/planetariu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zoobrasov.ro\/planetariu\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/zoobrasov.ro\/planetariu\/wp-json\/wp\/v2\/comments?post=2891"}],"version-history":[{"count":1,"href":"https:\/\/zoobrasov.ro\/planetariu\/wp-json\/wp\/v2\/posts\/2891\/revisions"}],"predecessor-version":[{"id":2896,"href":"https:\/\/zoobrasov.ro\/planetariu\/wp-json\/wp\/v2\/posts\/2891\/revisions\/2896"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zoobrasov.ro\/planetariu\/wp-json\/wp\/v2\/media\/2892"}],"wp:attachment":[{"href":"https:\/\/zoobrasov.ro\/planetariu\/wp-json\/wp\/v2\/media?parent=2891"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zoobrasov.ro\/planetariu\/wp-json\/wp\/v2\/categories?post=2891"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zoobrasov.ro\/planetariu\/wp-json\/wp\/v2\/tags?post=2891"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}