News and Society, Uhlobo
Komzila Umhlaba: i uhambo engaqhelekanga emhlabeni iLanga
uluhlu Thina ngokujikeleze iLanga ngesantya amangalisayo - malunga 100 000 km / h. Ke umnikelo wonke unyaka, eziphaphazelayo malunga nezigidi ezisithoba neekhilomitha, siya kubuyela ukuya kwindawo enye apho waza waqalisa uhambo amazing ebumnyameni kunye ongenawo umoya isithuba. Eyona engundoqo iparameters ezintathu: ukujikeleza koMhlaba, ujikelezo layo ngeenxa central axis kwayo ithambeka yentonga wengqikelelo, ekuthiwa precession, uMenzi imbonakalo yomhlaba kwaye uqhubeke ngokwakha ukwakheka kwalo. Ngoko ke, isigqibo ubomi bomntu bonke Mzuzu ngamnye, yonke imihla kangangamawaka ezigidi zeminyaka bokuba Yomhlaba.
Kodwa kukho ukhetho sibi yesine, ngaphandle apho komzila Umhlaba, kunye ijikeleza axis engundoqo kunye precession bekuya kuba nantsingiselo ngokwemiqathango lokusekwa imilo angaqhelekanga emhlabeni, yaye, okona kubaluleke kakhulu, imvelaphi kunye nophuhliso kobomi.
Inyaniso yokuba i-Earth kwinkqubo elanga ithatha enhle, egqibeleleyo, unique (apha yonke walithiywa kufanelekile!) Isikhundla, ubize emhlabeni yesayensi "Sipho zone." Phantsi kwale nto ithetha ukuba indawo le iiplanethi ngokunxulumene umzimba ezulwini, apho amanzi ngokwaseburhulumenteni elulwelo, yaye ngoko ke, kunokwenzeka ukuvela yobomi. ukujikeleza koMhlaba, nto leyo iqhele kumgama enjalo ekhululekile kwaye esihle ilanga.
Ukusukela ekuzalweni iplanethi yethu eluhlaza ukuba angaphezu kwezigidi ezine ingeniso evela orbit yentle. Bonke ephaphazela ezidlulileyo Earth, ngokuphindaphindiweyo Ngokwenza isithuba yakho indlela, i bume engentle kakhulu. Olu hambo kakhulu kakhulu kwimbali yoluntu.
ukujikeleza koMhlaba ujikeleza ilanga - indlela eyingozi kakhulu, apho imitha ezibulalayo solar nengqele cosmic yintlekele ephelekwa kuhlaselo lobundlobongela ezinomsila kunye izijikelezi. Oku singasathethi isixa elikhulu izisongelo kangako kunokwenzeka. Kodwa nakuba iingozi ezininzi silindele nathi endleleni, ukujikeleza koMhlaba, njengoko kutshiwo apha ngasentla, ukuba ibekwe kwindawo elungileyo kakhulu. ilungelo ezilungele ubomi. Ke ezinye iiplanethi kwenkqubo solar abazange nethamsanqa ...
Umhlaba wazalwa kwiminyaka engaphezu kancinane kwama-amane eyadlulayo xa ilifu cosmic uthuli kunye negesi, apho wahlala emveni kokuba kwasekwa Ilanga uphendule ezijikeleze inkwenkwezi kuzalwa. Le ukuzalwa bunzima kuni, umhlaba kunye orbit yayo. Isahluma Umhlaba oselula uhlaselwa ezinye iziqu - ixesha le-Great lifumana, ekugqibeleni wagqiba isakhiwo umyalelo yonke inkqubo yethu langa.
Kukho ubungqina obucacileyo bokuba kweli thuba sisiphithiphithi Umhlaba nemoto iplanethi ethile encinane kwakhona ojikeleza ilanga. Isiphumo sale yintlekele yokuba yaba mba we precession. Umhlaba waqalisa ukujikeleza kwi-engile 23.5 malunga nkqo, yaye oko kwakhokelela iintlobo enjalo imozulu kakhulu kwiplanethi yethu. Ukuba axis engundlunkulu aa Incopho komzila, usuku iplanethi yethu ibiya kuba ulingana ebusuku. Kwaye thina soze ubone ilanga kunye kwelanga ...
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