Iithiyori, iimuvi, amaqela abantu, nkqu nemithombo ethile yeendaba. Kukhe kwakhankanywa malunga nokuba imeteorite ibinokuchaphazela iplanethi yethu. Nangona kunjalo, njengoko kuyinyani ukuba asikaze siphile njengohlobo oluthile kwaye khange sikwazi ukubhala phantsi, kuninzi okucingelwayo nokuqikelelwa ngako. Kodwa… ziyakuba yintoni iziphumo?
Kulo nyaka, ezinye ii-asteroids ezikufutshane noMhlaba zidlulile. Kwiintsuku ezimbalwa ezidlulileyo, i-asteroid Florence, enobukhulu be-4,4 km, yadlula kufutshane nomhlaba wethu kumgama 7 million km. Nangona yayingeyongozi, kuba yayikumgama omalunga namaxesha ali-18 oko kwahlulahlula iNyanga, kunokwenzeka kakhulu ukuba uninzi lwenu luzibuze ukuba kuyakwenzeka ntoni ukuba ibinesiphumo esibulalayo. Ngolunye ulwazi, kulo-Okthobha uzayo, i-asteroid 2012 TC4 phakathi kwe-15 kunye ne-30 yeemitha ububanzi, iya kudlula nje ngeekhilomitha ezingama-44.000 kude.
Umonakalo omkhulu ngokobungakanani
Kwindawo yokuqala, kufanele kuqatshelwe ukuba impembelelo evela kwi-meteorite encinci ayifani nefuthe elikhulu. Yedwa kule minyaka ingama-20 idlulileyo, kuqikelelwa ukuba banefuthe malunga ne-500. Ukuba mncinci, kunokwenzeka ukuba uninzi lungahoyi ezi datha kuba khange zibeke mngcipheko. Ke ngokobukhulu bayo, sinokuqala ukuthi, uhlobo lwecrater abaya kuyishiya kunye nomonakalo abaya kuwenza macala onke. Kwimeko apho bebeziimeteorite ezinkulu, owona monakalo mbi.
I-meteor encinci, Iimitha ezili-100 ubude, zingenza umngxuma ongama-3km ububanzi uchaphazele nomgama oyi-60km radius.
Ukuba imeteorite ibiyi-1km ububanzi, Apha besizakufumana i-crater engama-25km ngentshabalalo epheleleyo yayo yonke into eyayikwipheriphery engama-400.
Nge Ama-meteorite amakhuluUkuqala kwe-10km, siza kuba sele sineengxaki ezinzulu. Impembelelo yayo ingadala umngxuma ongama 200km ukutshatyalaliswa ngokupheleleyo kwayo yonke into eyi-3000km kude.
Iziphumo zemozulu eziya kubakho emhlabeni
Ukungena kumoya weyona mizimba mikhulu ngaphezulu kwe-100.000km / h kungabangela, kwasekuqaleni Ukuphazanyiswa kwemiqondiso kanomathotholo nomabonakude. Ukungena kwabo, babelandela Imimoya yenkanyamba yomoya kuyo yonke imimandla ekufutshane. Kuxhomekeke njengoko besitshilo, ubungakanani obunayo. Nje ukuba ibethe, nokuba yeyiphi na loo ndawo, kwakuza kulandela iinyikima. Nokuba kwiindawo ezazingazange zibekho ngaphambili. Emva koko, ukusuka apha, inokuwela kwiindawo apho uqweqwe lomhlaba lubuthathaka ngakumbi kwaye Zisenokude zidale neentaba-mlilo kuxhomekeke kwinqanaba apho iwele khona.
Emva kwempembelelo yemeteorite, ilifu elikhulu elishinyeneyo liza kuyigubungela iplanethi. Ishawa yemvuthuluka, yayiza kuphoswa ekuqaleni. Elo lifu likhulu liyakuthintela iLanga ukuba lingabonakali kangangeenyanga. Ingqele yayiya kuphawulwa kwiithemometha kunye nakwimo yomkhenkce. Kancinci kancinci, ezininzi izityalo ziya kufa. Iindawo ezichaphazeleka kakhulu koku zinokubangela ukusweleka kwezilwanyana ezitya utyani. Ukufa kwabo kuya kuhamba kunye nezilwanyana ezityebileyo nazo ziyanyamalala.
Amathuba okwenene emeteor abetha uMhlaba
Ndiyabulela kwi-paleontology kunye ne-paleoclimatologists, ukubonwa kwesinye seziganeko ezenzekayo kwakhona kuye kwafundwa. Ngokusekwe kwiziphumo, sifumanise ukuba ifuthe le- Ubukhulu be-1km meteorites zenzeka rhoqo kwizigidi ezi-2 zeminyakas. Kubantu abadala, abo 10km, amathuba okuhla aye kwi-1 qho kwiminyaka eyi-370 yezigidi. Ngethamsanqa, yinto esisa kude kakhulu. Singasifumana apha esinye sezizathu kunye nethiyori eza kuchaza isizathu sokuphela kweedinosaurs.
Njengoko singekhe sigqibe kwelokuba into enjalo inokwenzeka ngenye imini, I-NASA sele ithathe amanyathelo ngalo mbandela. Baneemvavanyo ezilindele ukuphambukisa i-meteorites enokuthi ibe ngolunye usuku isoyikiso kuthi.
Ndiyathemba ukuba konke oku kuyinyani, kwaye asizukuzibona iziphumo ezibi zelitye elikhulu ngokuchasene neplanethi.
Ngokweziprofeto zikaNostradamus kwixa elizayo i-asteroid ebizwa ngokuba yi-an10 1999 iyakubetha iMeditera.