Mdala kangakanani na Umhlaba?

Iingqondo izazinzulu ezininzi kunye nabantu eziqhelekileyo kudala wawuxhokonxa lo mbuzo: "Yintoni na ubudala Umhlaba '? Okwangoku, eyona ndlela ithandwa kakhulu ukufumanisa iminyaka zamathambo Radiocarbon ukuthandana. Kodwa indlela kakhulu robust na iimpazamo ebalulekileyo. Kutshanje, izazinzulu waqonda ukuba izinga ukubola radioactive iphenjelelwa yimiba ezininzi, ngoko uyithabathe ibe rhoqo akunakwenzeka. Kwakhona, kukho nezinye ezininzi evumelekileyo, kodwa kufuneka sizivandlakanye rhoqo kuphela kunye nezinye iinkcukacha ezinxulumene kwithiyori kwendalo kunye zazivelela.

I-magnetic amandla intsimi

Kokuma lubonise ukuba kule minyaka 1,400 edlulileyo inqanaba ubunzulu lo mhlaba otsalayo iplanethi yethu bawa kabini. uyakwazi ukwenza ubalo olulula ngokusekelwe data ezinjalo, nto leyo ebonisa ukuba ubudala Umhlaba ayikho ngaphezu kwe-10 iminyaka eliwaka..

"Pierce" oomaleko umhlaba. Amalahle, nja- kunye namafutha

Amaninzi kumacandelo zodongwe nga kukhubeka phezu komboko nkqo kulahlwa imithi, kwakunye nezinye iiminerali, "ezendeleyo" ezahlukahukeneyo zomhlaba. Oku kubonisa ukuba wafika unogumbe, warhaxwa imithi kumila phantsi.

Kubalulekile ukuqaphela ukuba uninzi imithombo yezimbiwa ezikhoyo na imveliso onogumbe. Ngoko amalahle, i-oyile kunye umgquba ucebisa intlekele enkulu. Kwaye ngoko, aqokele - okunjani, leyo kwindawo enye kuqukaniswa phantsi kwempembelelo lobushushu kunye noxinzelelo. Kunzima gqitha ukukuqonda oko ukuba wadalwa ngayo kwiminyaka emininzi. Kunoko, ingaba umkhukula omkhulu awabangela ukuba imithi, ingca kunye nezinye izinto eziphilayo yande ngaxa lithile, apho ndihlanjwe zamatye enzima Sehla nomzimba omkhulu wamanzi.

washout

Oosonzululwazi bakholelwa ukuba xa ubudala komHlaba kwizigidi, ngaphantsi komhlaba wayesele kunifumana kwinqanaba ulwandle njengoko uMhlaba phantsi kwempembelelo imvula ngcembe ahlambe olwandle, nto leyo emenza abe into efana ukudilika. Ngoko kutheni elwandle yi% 3.6 kuphela ityuwa, kuba izigidi zeminyaka iimvula yonke ukuba ndakuhlambulula emizimbeni amanzi?

Oosomajukujuku kuqala US iziphekepheke ekhathazekile kakhulu ukuba ulahlekile eluthulini meteoric, ukususela ngokutsho kwithiyori eyamkelekileyo ngokubanzi nasekusungulweni zeNyanga kwasekwa iminyaka emibini okanye emithathu billion eyadlulayo, ngaxeshanye Umhlaba. Le nkkolelo kwakhokelela kwinkolelo ngokugqibeleleyo kusengqiqweni ukuba on Earth le yesathelayithi sele efunde isixa esikhulu ngothuli isithuba. Kodwa oosomajukujuku kwafika zafumana umaleko encinane kakhulu eluthulini. Ubalo lubonise ukuba ubudala lenyanga ukudlula uphawu amawaka 10. Iminyaka.

Umxholo Low of helium

Oku kubonakaliswa ukuba inkqubo kuwohloka uranium wafumana eziba helium kunye bakhokele. Isixa helium ekukhutshelwe emoyeni, - amawaka 300 eetoni ngonyaka ngamnye .. Ukuza kuthi ga ngoku, yangqineka ukuba umoya izele kancinane ngaphezu kwama-3 bln. Iitoni helium, nto leyo ibonisa ukuba ubudala komhlaba akubonakali liwugqithe bar ye amawaka 10. Iminyaka.

Dinosaurs - amangqina elungileyo

Amathambo iintsalela ezininzi ledayinaso okwangoku aba ngamatye. Ngenxa yokuba ubukhulu yazo ekhethekileyo, akunakufane kwenzeke ukuba iminyaka eliwaka embalwa ugcwalise ehlukene. Maxa wambi amathambo badibana iintsalela yezihlunu ezithambileyo kunye neeseli obomvu negazi. Kwakhona, kukho inala imifanekiso kweentlobo ezahlukeneyo Dinosaurs, zikroliwe phezu cobbles kunye namatye, nto leyo ibonisa ubukho abantu ngelo xesha. Kwakutheni ukuze izazinzulu musa kumka imfundiso yakhe ukuba iidayinaso wayephila kwizigidi zeminyaka eyadlulayo, yaye siqhubeke singabhengeza ukuba Umhlaba uneminyaka engaphezu kwama-nye?

Njengokuba ubungqina, siye sikhumbule ezininzi amabali kunye neentsomi, leyo ababandakanyekayo seempungutye. Kungenzeka ukuba ezi neempungutye zaye ngokuthe ezisengozini iintlobo dinosaur.

Kakade ke, kukho ngeziganeko ezininzi ezahlukeneyo yokuba ubudala uMhlaba ayikwazi engamawaka ezigidi zeminyaka ubudala. Ngaphezu koko, inkoliso izibakala angqiniweyo ngokwezenzululwazi malunga ufana imibhalo thaca eBhayibhileni. Kodwa ngeli xesha abaphandi kulo mba sele ningekabi nakomelela ukunika impendulo ngaphezulu okanye ngaphantsi eziphathekayo kulo mbuzo, ekubeni akukho ubuchwepheshe bale mihla okanye iingcamango ezahlukeneyo musa ukunika ithuba enjalo.