Core Yomhlaba. Imbali Emfutshane Education

imbono zomntu ehlabathini ngaphandle baqalisa ukuba ukususela kwinkulungwane ye-14. Kamva, Rene Dekart, sezibalo omkhulu, wacebisa ukuba umhlaba wabumba ngentlama ubunzima, nto leyo efana kweyokuqala, ilanga eqaqambileyo, kodwa emva koko wehlile. Kule meko, efihliweyo ezinzulwini 'ezingundoqo Umhlaba. " Nangona kunjalo, hlola le ingcamango ngelo xesha akwenzeki.

Kamva, Newton wafumana uhambo French oososayensi baqinisekisa ukuba kwipali ye umhlaba noko atshabalalisa. Kulo kulandela ukuba Umhlaba ayikho into one ngayo imilo rhoqo. Buffon (semvelo French), ngokusayina amazwi wacebisa ukuba oku kube njalo ukuba izibilini iplanethi isakhiwo otyhidiweyo. Buffon ngo-1776 ucingela ukuba kumaxesha amandulo kwakukho wengxabano ilanga kunye ezithile enomsila. Enomsila le "yeni kokukhanya kwento ubunzima ethile. Le mass kuxhaphaka niziphozisayo, yaba Umhlaba.

hypothesis Buffon baqalisa ukukhangela physics. Ngokutsho imithetho thermodynamic, akukho nkqubo ayikwazi kuqhubeka ngonaphakade, ukususela ekudalweni eziya badiniwe amandla alo, uya kuyeka nayo. Ngenkulungwane ye-19, ezinye izibalo kwenziwa. Sezibalo physics iNkosi Kelvin eNgilani wafumanisa ukuba, ukuze kuphole, wolahlekelwa isixa esikhulu wamandla, kwaye ayeke ukuba nibe yintlama etyhidiweyo, waba ndlela ekuyiyo ngoku, kufuneka iminyaka malunga nezigidi nekhulu. Izazi, ke, wachaza ukuba ubudala yamawa okuninzi. Ukongeza, kwinkulungwane ye-19 kuye kwafunyaniswa isenzeko of yemisebe. Ngenxa yoko, kwacaca ukuba ngokuwa eziqalelo eziyimfuneko amakhulu ezigidi zeminyaka.

Kude kube kutshanje kwakukholelwa ukuba undoqo umhlaba ngokupheleleyo smooth ibhaloni imilo rhoqo (ezifana kunaso nucleus). Kule yee-, oko yasungulwa ekuthiwa Itomography zenyikima. Ngayo, izazinzulu ziye zafumanisa ukuba ongundoqo Umhlaba iye yayo ntlango lakhe. Ububanzi komhlaba kwaba ezahlukeneyo. Kwezinye iindawo, anekhulu elinamanci iikhilomitha amahlanu, yaye kwelinye - ukuya ku ezimakhulu mathathu anamanci mahlanu.

Ngokutsho ulwazi abalufumene esebenzisa kwamaza wenyikima, engamanzi (etyhidiweyo) yi Umbindi lwe Earth (umaleko ukuba ezimagqagala sezwe). Inxalenye engaphakathi efanayo 'kunzima ", kuba umhlaba lo phantsi koxinzelelo. yengcinezelo inxalenye olungaphandle sibalwa isondlo umalunga 1.3 million umoya. Xa iziko xi yandiswa ukuze umoya million ezintathu. Low core Umhlaba malunga 10,000 degrees. Ubunzima a cubic meter izinto ukusuka izibilini planethi - malunga ezilishumi elinambini okanye lishumi iitoni.

Phakathi ubukhulu iindawo, equka ongundoqo komhlaba, kukho umlinganiselo othile. Inxalenye engaphakathi imalunga 1.7% mass zehlabathi. Inxalenye engaphandle - malunga namashumi amathathu ekhulwini. Impahla yenza up uninzi ngokucacileyo exutywe nento lula, mhlawumbi, engwevu. Ezinye iingcali zibonisa ukuba le sakhi malunga elinesine ekhulwini.