INyanga iyindikimba yasezulwini eseduze kakhulu noMhlaba, futhi idlala indima enkulu ekwenzeni ukuphila kube nokwenzeka kuwo, ngenxa yamandla adonsela phansi, okwenza uMhlaba uzulazule uzungeze i-eksisi yawo, futhi lokhu kuholela ekuzinzeni kwesimo sezulu. Inyanga izungeza uMhlaba ngendlela eyi-elliptical, ukuze i-apogee ibe ngu-405,696 km, okuyindawo eqhelile yenyanga ukusuka eMhlabeni. Lapho inyanga isondela eMhlabeni, iqhele ngamakhilomitha angama-363,104, futhi leli phuzu libizwa ngokuthi i-perigee. Lokhu kusho ukuthi ibanga eliphakathi koMhlaba neNyanga lingama-384,400 km.
Amandla okukhanga phakathi kweNyanga noMhlaba akhiwa ngokomthetho kaNewton wokudonsela phansi kwendawo yonke, obonisa ukuthi amandla okukhanga phakathi kwanoma iyiphi imizimba emibili endaweni yonke alingana ngokuqondile nomkhiqizo woquqaba lwazo, futhi ahambisana ngokuphambene nesikwele. lebanga eliphakathi kwabo. Futhi siyawaqaphela amandla okudonsela phansi kwenyanga eMhlabeni ngokucacile ezenzakalweni ezimbili zamagagasi emanzini olwandle nezilwandle. Bekungenzekani uma ibanga eliphakathi kwenyanga nomhlaba lincipha?
Kukhona izenzakalo eziningi eziyinqaba ezizokwenzeka, futhi lapha sibeka izimo eziseduze kakhulu ezisekelwe kusisekelo sesayensi. Ukudonseka kwenyanga emhlabeni kuzokhula njengoba ibanga eliphakathi kwawo lincipha, njengoba kusho umthetho kaNewton wamandla adonsela phansi endaweni yonke. Uma inyanga isondela kakhulu, ulwandle luzokhukhumala kakhulu, okuholela ezikhukhuleni ezinkulu zomhlaba. Lokhu kusho ukunyamalala kwamadolobha amaningi ngaphansi kwamanzi. Umhlaba ngokwawo uzophinde uthintwe yilo mandla adonsela phansi aqinile, ngomphumela wawo oqweqweni lwangaphandle noma ingubo yoMhlaba, ukuze uphakame futhi uwe. Ngenxa yalokhu kunyakaza, umsebenzi we-tectonic uzokwanda futhi kuzokwenzeka ukuzamazama komhlaba okubi kakhulu nezintaba-mlilo.
Ukusondela kwenyanga emhlabeni kuzokhulisa isivinini sokuzungeza komhlaba eksisi yawo, ngokomthetho wokongiwa komfutho we-angular. Kuleli qophelo, kuzokwenziwa iziphepho ngenxa yokujikeleza komkhathi ngokushesha. Futhi usuku eMhlabeni luyoba lufushane.
Kumbukeli, inyanga izovela inkulu ngokusondela kwayo eMhlabeni, okuzoba nomthelela ekuvimbeni imisebe yelanga. Ngakho, ukufiphala kwelanga kuzoba yinsakavukela.
Futhi uma inyanga isondela, futhi ifinyelela kulokho okwaziwa ngokuthi “i-Roche limit” (ibanga lapho indikimba yasezulwini ihlala ibambene ndawonye ngamandla ayo adonsela phansi lapho isondela komunye umzimba), inyanga iyohlakazeka futhi iphihlike ngenxa yamandla olwandle okuba umphumela. kusukela kumandla adonsela phansi emhlabeni. Lezi zingxenye ezihlakazekayo zizokwakha izindandatho eMhlabeni, njengalezo zeSaturn. Nokho, ngeke kuthathe isikhathi eside ngaphambi kokuba lezi zingxenye ziwele eMhlabeni njengezinkulungwane zama-asteroids.
Ngempela, esimisweni sethu sonozungezilanga, kuye kwenzeka okufanayo nalesi simo esiyinhlekelele. Ngo-1992 inkanyezi enomsila i-Shoemaker-Levy 9) yasondela ku-Jupiter futhi yeqa umkhawulo we-Roche we-Jupiter, futhi yaphuka yaba yizicucu ezingaphezu kwamashumi amabili, ezaqala ukuyizungeza, zase zawa zilandelana kuJupiter ngo-9 AD. Amandla ayo okubhubhisa ayelinganiselwa emabhomu e-athomu ayizigidi ezingu-1994!
Ngakho-ke, kuyacaca ukuthi imiphumela yesimo esingenzeka uma inyanga isondela eMhlabeni izoba yinhlekelele kakhulu. Lesi siphetho esidabukisayo sephupho sikhuthaze eminye imisebenzi ye-dystopia ne-apocalypse. Kodwa empeleni, iNyanga isuka eMhlabeni ngo-3.8 cm ngonyaka. Ngakho-ke, akunakwenzeka ukuthi uchungechunge lwezenzakalo ezicatshangelwayo ezifana nokuzamazama komhlaba, izintaba-mlilo neziphepho ezilandelanayo zizokwenzeka, futhi ngeke sikubone ukusitheka kwelanga okuhlala njalo, futhi ngeke kuvele izindandatho ezifana nezindandatho zeSaturn, futhi inyanga iyohlala isici sokuphepha nokuzinza kweplanethi.
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