{"id":199,"date":"2020-10-29T20:16:47","date_gmt":"2020-10-29T18:16:47","guid":{"rendered":"http:\/\/www.cosmoespai.com\/cat\/?p=199"},"modified":"2020-10-29T20:16:47","modified_gmt":"2020-10-29T18:16:47","slug":"quin-mal-pot-fer-un-micro-meteorit","status":"publish","type":"post","link":"https:\/\/www.cosmoespai.com\/cat\/quin-mal-pot-fer-un-micro-meteorit\/","title":{"rendered":"Quin mal pot fer un micro-meteorit?"},"content":{"rendered":"\n<p class=\"has-text-align-justify\">A l\u2019espai, i orbitant al voltant de la Terra, hi ha una gran quantitat de meteorits. Els m\u00e9s grans i voluminosos estan, o b\u00e9 al cintur\u00f3 d\u2019asteroides, o m\u00e9s enll\u00e0 del sistema solar, al n\u00favol d\u2019Oort, on hi ha milers de milions d\u2019asteroides de diferents mides. Tot i aix\u00ed, tamb\u00e9 hi ha una gran quantitat de meteorits que s\u00f3n d\u2019una mida molt petita, i que s\u2019anomenen micro-meteorits.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Aquests meteorits de mida molt petita (algunes mil\u00b7l\u00e8simes de mil\u00b7l\u00edmetre de di\u00e0metre), estan suspesos a l\u2019espai, o orbitant algun cos celeste, com podria ser la Terra. Encara que puguin semblar inofensius, els micro-meteorits poden causar molts danys als sat\u00e8l\u00b7lits que orbiten la Terra, i tamb\u00e9 als astronautes que es trobin en sortides extra-vehiculars.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><em><u><strong>On poden afectar els micro-meteorits?<\/strong><\/u><\/em><\/h4>\n\n\n\n<p class=\"has-text-align-justify\">L\u2019home, com he dit, ha posat en \u00f2rbita molts sat\u00e8l\u00b7lits, cada un d\u2019ells dissenyat per a un tipus diferent de funci\u00f3. Per\u00f2 sigui quina sigui la seva funci\u00f3, tot sat\u00e8l\u00b7lit ha d\u2019estar preparat per a suportar l\u2019impacte d\u2019un micro-meteorit, ja que pot arribar a tenir una velocitat de varis kil\u00f2metres per segon. Per aquesta ra\u00f3, els sat\u00e8l\u00b7lits han de estar dissenyats per a poder aguantar aquests impactes. Tot i que un sol micro-meteorit no fa un mal considerable, una exposici\u00f3 a aquests meteorits a llarga escala degradaria l\u2019aparell, i acabaria amb la seva destrucci\u00f3.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Tamb\u00e9 \u00e9s el cas de les missions espacials. Al construir els vestits espacials, s\u2019ha de preveure que puguin resistir varis impactes de micro-meteorits. Si un micro-meteorit perfor\u00e9s el vestit espacial, acabaria amb la vida de l\u2019astronauta per diverses raons. Entre elles, l\u2019astronauta no suportaria la pressi\u00f3, i els seus \u00f2rgans comen\u00e7arien a bullir i a inflar-se.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">En el cas de les estacions espacials, han de poder resistir aquests impactes molt millor, ja que estaran durant molt de temps en \u00f2rbita, i, si es foradessin, els astronautes que estiguessin a dins moririen tots, ja que, a l\u2019estar dins l\u2019estaci\u00f3 sense portar el vestit espacial posat, moririen degut al sobtat canvi de pressi\u00f3.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><em><u><strong>On s&#8217;han de prendre m\u00e9s precaucions contra els micro-meteorits?<\/strong><\/u><\/em><\/h4>\n\n\n\n<ul><li>1 &#8211; El lloc que ha d\u2019estar m\u00e9s protegit contra aquests meteorits s\u00f3n les estacions espacials. A les estacions espacials hi ha astronautes que hi viuen durant mesos, i si un micro-meteorit perfor\u00e9s una paret, moririen tots els astronautes que hi haguessin dins. A part, construir una estaci\u00f3 espacial costa molts diners, pel que, si es trenqu\u00e9s, costaria molts diners i esfor\u00e7os reconstruir-la.<\/li><\/ul>\n\n\n\n<ul><li>2 &#8211; Als vestits espacials que porten els astronautes tamb\u00e9 s\u2019hi han de prendre mesures. A l\u2019igual que en el cas de l\u2019estaci\u00f3 espacial, un forat al vestit espacial provocaria la mort de l\u2019astronauta que hi hagu\u00e9s dins.<\/li><\/ul>\n\n\n\n<ul><li>3 &#8211; Per \u00faltim, on \u00e9s menys important prendre precaucions \u00e9s en el cas dels sat\u00e8l\u00b7lits artificials que posem en \u00f2rbita. Tot i que \u00e9s important posar protecci\u00f3 als sat\u00e8l\u00b7lits, no \u00e9s tan important com en els altres casos, ja que no hi ha vides en joc. De totes maneres, hi ha sat\u00e8l\u00b7lits que necessiten una major protecci\u00f3, com \u00e9s el cas dels telescopis espacials.<\/li><\/ul>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><strong>Entrades Similars:<\/strong><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/2020\/10\/16\/les-cues-destels-un-fenomen-molt-bonic-de-veure\/\">Les cues d\u2019estels, un fenomen molt bonic de veure<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/2020\/07\/20\/una-nau-que-viatja-mes-rapid-que-la-llum\/\">Una nau que viatja m\u00e9s r\u00e0pid que la llum?<\/a><\/p>\n\n\n\n<p><strong>Entrades Populars:<\/strong><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/2020\/10\/10\/quina-mida-i-forma-tindrien-els-extraterrestres\/\">Quina mida i forma tindrien els extraterrestres?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/2020\/09\/09\/perque-la-lluna-nomes-ens-ensenya-una-cara\/\">Perqu\u00e8 la Lluna nom\u00e9s ens ensenya una cara?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/2020\/08\/26\/la-cara-fosca-de-la-lluna-que-es-el-que-shi-amaga\/\">La cara fosca de la Lluna. Qu\u00e8 \u00e9s el que s\u2019hi amaga?<\/a><\/p>\n\n\n\n<p><strong>Entrades Recents:<\/strong><\/p>\n\n\n<ul class=\"wp-block-latest-posts__list is-grid columns-3 wp-block-latest-posts\"><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/com-viatjar-al-futur-sense-violar-les-lleis-de-la-fisica\/\">Com Viatjar al Futur Sense Violar les Lleis de la F\u00edsica<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/que-es-la-gravetat\/\">Qu\u00e8 \u00e9s la gravetat?<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/per-que-hi-ha-mes-materia-que-antimateria-a-lunivers\/\">Per qu\u00e8 hi ha m\u00e9s mat\u00e8ria que antimat\u00e8ria a l\u2019univers?<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/que-es-lantimateria\/\">Qu\u00e8 \u00e9s l\u2019antimat\u00e8ria?<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/per-que-els-centres-de-les-galaxies-contenen-forats-negres\/\">Per qu\u00e8 els centres de les gal\u00e0xies contenen forats negres?<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>A l\u2019espai, i orbitant al voltant de la Terra, hi ha una gran quantitat de meteorits. Els m\u00e9s grans i voluminosos estan, o b\u00e9 al<span class=\"read-more-link\"><a class=\"read-more\" href=\"https:\/\/www.cosmoespai.com\/cat\/quin-mal-pot-fer-un-micro-meteorit\/\">Continuar llegint<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":200,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":""},"categories":[134,6],"tags":[161,163,160,159,166,162,164],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2020\/10\/Mal_Micro_Meteo.jpg?fit=720%2C405","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":256,"url":"https:\/\/www.cosmoespai.com\/cat\/la-brossa-espacial-un-gran-problema\/","url_meta":{"origin":199,"position":0},"title":"La brossa espacial, un gran problema","author":"Ferran","date":"5 de febrer de 2021","format":false,"excerpt":"Durant els primers anys de la era espacial es va donar poca import\u00e0ncia al tema de la brossa espacial. Per\u00f2 des dels primers allunatges, la proliferaci\u00f3 de sat\u00e8l\u00b7lits i altres vehicles espacials que giren al voltant de la Terra, a m\u00e9s de les seves restes orbitals, ha estat un problema\u2026","rel":"","context":"A &quot;La Terra&quot;","block_context":{"text":"La Terra","link":"https:\/\/www.cosmoespai.com\/cat\/category\/sistema-solar\/la-terra\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/02\/Brossa_Espacial.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/02\/Brossa_Espacial.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/02\/Brossa_Espacial.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/02\/Brossa_Espacial.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":746,"url":"https:\/\/www.cosmoespai.com\/cat\/quanta-energia-allibera-un-meteorit-a-limpactar\/","url_meta":{"origin":199,"position":1},"title":"Quanta energia allibera un meteorit a l\u2019impactar?","author":"Ferran","date":"25 de setembre de 2022","format":false,"excerpt":"Dins del sistema solar hi ha bilions d\u2019asteroides de totes les mides. A vegades, aquests asteroides es desvien de les seves \u00f2rbites, podent arribar a impactar contra diferents cossos celestes. Al llarg de la seva exist\u00e8ncia, la Terra ha estat v\u00edctima de l\u2019impacte de nombrosos meteorits. Aquests tenen una mida\u2026","rel":"","context":"A &quot;General&quot;","block_context":{"text":"General","link":"https:\/\/www.cosmoespai.com\/cat\/category\/general\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/09\/Energia_Meteorit.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/09\/Energia_Meteorit.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/09\/Energia_Meteorit.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/09\/Energia_Meteorit.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":406,"url":"https:\/\/www.cosmoespai.com\/cat\/quina-possibilitat-hi-ha-de-morir-per-un-meteorit\/","url_meta":{"origin":199,"position":2},"title":"Quina possibilitat hi ha de morir per un meteorit?","author":"Ferran","date":"16 de juliol de 2021","format":false,"excerpt":"Pot semblar que morir a causa de l\u2019impacte d\u2019un meteorit a la Terra \u00e9s un fenomen molt improbable. No obstant, s\u2019estima que cada any hi ha v\u00e0ries persones que moren per impactes de meteorits. S\u00f3n roques de diferents mides viatjant a milers de kil\u00f2metres per hora, i si una d\u2019aquestes,\u2026","rel":"","context":"A &quot;La Terra&quot;","block_context":{"text":"La Terra","link":"https:\/\/www.cosmoespai.com\/cat\/category\/sistema-solar\/la-terra\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/07\/Morir_Meteorit.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/07\/Morir_Meteorit.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/07\/Morir_Meteorit.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/07\/Morir_Meteorit.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":359,"url":"https:\/\/www.cosmoespai.com\/cat\/la-diferencia-entre-meteoroide-meteor-i-meteorit\/","url_meta":{"origin":199,"position":3},"title":"La difer\u00e8ncia entre meteoroide, meteor i meteorit","author":"Ferran","date":"22 de maig de 2021","format":false,"excerpt":"Normalment, utilitzem qualsevol d\u2019aquests noms de indistintament. Tot i que s\u00f3n noms molt similars, es refereixen a situacions diferents. En ess\u00e8ncia, aquestes tres termes es refereixen al mateix: trossos de roca i metalls que s\u2019han despr\u00e8s d\u2019un cometa o asteroide, o que simplement es trobaven a l\u2019espai. Aix\u00ed doncs, quina\u2026","rel":"","context":"A &quot;La Terra&quot;","block_context":{"text":"La Terra","link":"https:\/\/www.cosmoespai.com\/cat\/category\/sistema-solar\/la-terra\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/05\/Dif_MeteoritMeteor.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/05\/Dif_MeteoritMeteor.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/05\/Dif_MeteoritMeteor.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/05\/Dif_MeteoritMeteor.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":325,"url":"https:\/\/www.cosmoespai.com\/cat\/quina-mida-tenen-els-asteroides\/","url_meta":{"origin":199,"position":4},"title":"Quina mida tenen els asteroides?","author":"Ferran","date":"23 d'abril de 2021","format":false,"excerpt":"Els asteroides es concentren majorit\u00e0riament en llocs concrets del sistema solar, com el conegut cintur\u00f3 d\u2019asteroides, el cintur\u00f3 de Kuiper (m\u00e9s enll\u00e0 de l\u2019\u00f2rbita de Nept\u00fa), i el n\u00favol d\u2018Oort, que cont\u00e9 milers de milions de cometes i asteroides, alguns del quals, de tant en tant, s\u2019apropen a la Terra\u2026","rel":"","context":"A &quot;Cintur\u00f3 d'Asteroides&quot;","block_context":{"text":"Cintur\u00f3 d'Asteroides","link":"https:\/\/www.cosmoespai.com\/cat\/category\/cinturo-dasteroides\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/04\/Mida_Asteroides.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/04\/Mida_Asteroides.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/04\/Mida_Asteroides.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/04\/Mida_Asteroides.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":111,"url":"https:\/\/www.cosmoespai.com\/cat\/craters-a-la-lluna\/","url_meta":{"origin":199,"position":5},"title":"Cr\u00e0ters a la Lluna","author":"Ferran","date":"12 de juliol de 2020","format":false,"excerpt":"La Lluna, el sat\u00e8l\u00b7lit natural de la Terra, t\u00e9 una superf\u00edcie molt m\u00e9s impactada per meteorits que la Terra. Aix\u00f2 \u00e9s degut a que, la Terra, t\u00e9 una atmosfera molt m\u00e9s desenvolupada que la Lluna. Per tant, la major part de meteorits, a l\u2019entrar a la Terra, es desintegren, formant\u2026","rel":"","context":"A &quot;Lluna&quot;","block_context":{"text":"Lluna","link":"https:\/\/www.cosmoespai.com\/cat\/category\/sistema-solar\/lluna\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2020\/07\/Craters_Lluna.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2020\/07\/Craters_Lluna.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2020\/07\/Craters_Lluna.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2020\/07\/Craters_Lluna.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts\/199"}],"collection":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/comments?post=199"}],"version-history":[{"count":1,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts\/199\/revisions"}],"predecessor-version":[{"id":201,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts\/199\/revisions\/201"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/media\/200"}],"wp:attachment":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/media?parent=199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/categories?post=199"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/tags?post=199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}