Uneminyaka emingaki Ngomhlaba?

Sekuyisikhathi eside i izingqondo yososayensi abaningi nabantu abavamile enyakaza lo mbuzo: "Iyini yobudala Zomhlaba"? Okwamanje, indlela ethandwa kakhulu ukunquma yobudala zamathambo Radiocarbon Dating. Kodwa ngisho indlela eyizingqabavu kakhulu inamaphutha abalulekile. Muva nje, ososayensi beqaphela ukuthi izinga kwamazinyo enemisebe kuthonywa izici eziningi, ngakho uthatha njengelungelo njalo akunakwenzeka. Futhi, kunezinye mbono eziningi ukuthi avunyelwe, kodwa kufanele ukuhlola kwabo kuphela ngokuhlangana nabanye amaqiniso ezihlobene imfundiso yokuziphendukela ekudalweni futhi kwemvelo.

Magnetic amandla emkhakheni

Ukuqaphelwa luye lwabonisa ukuthi past 1,400 iminyaka, le ngamandla kazibuthe kuyiplanethi yethu wawa kabili. ungenza ukubala elula ngesisekelo idatha efana, okuyinto ebonisa ukuthi engu-Earth akuyona ezingaphezu kuka eziyinkulungwane 10. iminyaka.

"Pierce" ezingqimbeni emhlabeni. Amalahle, Peat namafutha

Ngokuvamile ezigabeni zobumba kungaba siyakhubeka phezu iziqu thwi ilahlwe izihlahla, kanye namanye amaminerali, "ifinyelela inhliziyo" ezelekene zomhlaba. Leli qiniso kusikisela ukuthi kwafika uzamcolo, waminza izihlahla Rhizome phansi.

Kuyaphawuleka ukuthi eziningi zalezi izinsiza ezikhona amaminerali siwumkhiqizo wokuziphendukela kukazamcolo. Ngakho amalahle, uwoyela Peat ziphakamisa inhlekelele enkulu. Futhi ngaleso sikhathi, nokuningi - kuyinto organic, elalisendlini endaweni eyodwa futhi ohlangene ngaphansi kwethonya lokushisa nokucindezelwa. Kunzima ukucabanga ukuthi idaliwe eminyakeni eminingi eyadlula. Kunalokho, kungaba uzamcolo omkhulu oholele izihlahla, utshani kanye nezinye izinto eziphilayo kuyisiphazamiso buthelela esikhathini esithile, lapho bebehlala khona: yithela amatshe esindayo futhi ngazo umzimba omkhulu wamanzi.

Washout

Ososayensi bakholelwa ukuthi uma engu-Earth ezigidini, komhlaba wayesenze amaphutha ijahe kolwandle njengoba Umhlaba bedle imvula kancane kancane wageza olwandle, ukwakha into efana kumhambela. Khona-ke kungani olwandle kuyinto% 3.6 kuphela usawoti, ngoba izigidi zeminyaka izimvula konke ukuba wageza off emizimbeni amanzi?

Osomkhathi wokuqala US mkhathi ekhathazekile kakhulu ukuthi bangakwazi ulahleke othulini meteoric, kusukela ngokuvumelana theory owamukelwa kwemvelo of the Moon kwamiswa eminyakeni emibili noma emithathu billion edlule, kanyekanye ne-Earth. Lokhu kucatshangwa kwaholela ekutheni izikhulu zibonise nokucabanga kahle esinengqondo siwukuthi ku Earth satellite iye efunde omningi isikhala uthuli. Kodwa osomkhathi efika wathola ungqimba encane kakhulu uthuli. Izibalo luye lwabonisa ukuthi engu zenyanga ngeke idlule uphawu abayizinkulungwane 10. Iminyaka.

okuqukethwe okuphansi ane-helium

It is wafakazela ukuthi inqubo ukubola uranium etholwe nuclei ane-helium ne phambili. Inani helium asakazeka emkhathini, - amathani ngonyaka izinkulungwane 300 .. Kuze kube manje, kwaba ukuthi umkhathi ugcwele kancane kuka-3 bln. Amathani helium, okuyinto libonisa ukuthi inkathi Zomhlaba akunakwenzeka ukuba idlule nesigaxa ayizinkulungwane 10. Iminyaka.

Dinosaurs - ofakazi ezinhle

Amathambo dinosaur izinsalela zamathambo abaningi abangazange okwamanje waphendukela itshe. Ngenxa ukujiya yabo ekhethekile, cishe akunakwenzeka ukuba minyaka eyizinkulungwane ezimbalwa ukuqedela kwezinsalela namaminerali. Ngezinye izikhathi amathambo wahlangana izinsalela izicubu zomzimba ezithambile kanye egazi ngisho abomvu. Futhi, kukhona inala izithombe zezinto eziphilayo ezihlukahlukene izibankwakazi, kuqoshwe kuyo cobbles nasemifantwini yamadwala, okhombisa ukuba khona kwabantu ngaleso sikhathi. Kungani ososayensi akusuki bayihlaba kakhulu inkolelo yakhe ukuthi izibankwakazi waphila eminyakeni eyizigidi edlule, futhi uqhubeke bagomela ngokuthi Earth eminyakeni engaphezu kwezigidi eziyinkulungwane?

Njengoba ubufakazi, siphinde sikhumbule eziningi izindaba nama-legends, okwakuhilela Dragons. Kungenzeka, ukuthi njengoba lezi Dragons kancane kancane ezisengozini zama-dinosaur.

Yiqiniso, zikhona bonakaliso eziningi yokuthi engu-iplanethi enguMhlaba ngeke kungaba unezinkulungwane zezigidi zeminyaka ukhona ezahlukene. Ngaphezu kwalokho, iningi amaqiniso kungase kutholakale ngokwesayensi mayelana ufana imibhalo evezwa eBhayibhelini. Kodwa okwamanje abacwaningi magazini ongakabi ukuwunika impendulo ucishe aphathekako lo mbuzo, kwazise awukho ubuchwepheshe besimanje noma izimfundiso ezihlukahlukene unganikezi leli thuba elihle kangaka.