Singase sizuze amakhomishini esisebenzisana nawo uma uthenga kuzixhumanisi ezikusayithi lethu.Nansi indlela esebenza ngayo.
Ucwaningo olusha selukhombisile ukuthi iNorth Pole incike eSiberia isuka ekhaya layo lendabuko e-Canadian Arctic njengoba amaqoqo amabili amakhulu afihlwe ekujuleni komhlaba emngceleni we-mantle ebamba impi.
Lezi zindawo, izindawo ezinozibuthe ongemuhle ngaphansi kweCanada neSiberia, zihileleke ekulweni okunqobayo.Njengoba amaconsi eshintsha isimo namandla kazibuthe, kukhona onqobayo;Abacwaningi bathola ukuthi ngenkathi amanzi angaphansi kweCanada eba buthaka kusukela ngo-1999 kuya ku-2019, amanzi ngaphansi kweSiberia akhuphuke kancane ukusuka ku-1999 kuya ku-2019. esifundweni.
"Asikaze sikubone okufana nalokhu ngaphambilini," uPhil Livermore, umcwaningi oholayo nomsizi kaprofesa we-geophysics eNyuvesi yaseLeeds e-United Kingdom, utshele i-Live Science nge-imeyili.
Lapho ososayensi beqala ukuthola iNorth Pole (lapho inaliti yekhampasi ikhomba khona) ngo-1831, yayisendaweni esenyakatho yeCanada yaseNunavut.Ngokushesha abacwaningi baqaphela ukuthi isigxobo kazibuthe sasenyakatho sasivame ukukhukhuleka, kodwa ngokuvamile asikude kakhulu.Phakathi kuka-1990 no-2005, izinga lapho izigxobo kazibuthe zihamba khona zeqa ukusuka esivinini esingokomlando esingekho ngaphezu kwamamayela ayi-9 (amakhilomitha ayi-15) ngonyaka saya kumakhilomitha angama-37 (amakhilomitha angama-60) ngonyaka, abacwaningi babhala ocwaningweni lwabo.
Ngo-Okthoba 2017, i-magnetic north pole yawela umugqa wezinsuku zamazwe ngamazwe empumalanga ye-hemisphere, idlula phakathi kwamamayela angu-242 (amakhilomitha angu-390) ukusuka enyakatho yezwe.Khona-ke isigxobo kazibuthe sasenyakatho siqala ukuya eningizimu.Kuningi okushintshile kangangoba ngo-2019, izazi zokuma komhlaba zaphoqeleka ukuthi zikhiphe kusenesikhathi imodeli entsha kazibuthe yomhlaba, imephu ehlanganisa yonke into kusukela ekuzulazuleni kwendiza kuya ku-smartphone ye-GPS.
Umuntu angaqagela ukuthi kungani i-Arctic isuka eCanada ilibangise eSiberia.Lokho kwenzeka kwaze kwaba yilapho uLivermore nozakwabo bebona ukuthi amaconsi yiwo okufanele abekwe icala.
Amandla kazibuthe akhiqizwa i-iron ewuketshezi ezungeza engxenyeni ejulile yangaphandle yomhlaba.Ngakho, ukuguquka kwesisindo sensimbi eshwibekayo kushintsha indawo kazibuthe enyakatho.
Nokho, inkambu kazibuthe ayigcini nje kuphela emnyombweni.Ngokusho kukaLivermore, imigqa yamagnetic field "iqhuma" iphuma eMhlabeni.Kuvela ukuthi lawa maconsi avela lapho kuvela khona le migqa.“Uma ucabanga ngemigqa kazibuthe njenge-spaghetti esithambile, amabala afana nezigaxa ze-spaghetti eziphuma eMhlabeni,” esho.
Abacwaningi bathola ukuthi kusukela ngo-1999 kuya ku-2019, i-slick ngaphansi kweCanada yanwebeka isuka empumalanga iye entshonalanga futhi yahlukana yaba ama-slicks amabili amancane axhunyiwe, okungenzeka ngenxa yezinguquko zesakhiwo sokugeleza okukhulu phakathi kuka-1970 no-1999. okunye, kodwa sekukonke, ukunwetshwa “kube nomthelela ekwehliseni amandla indawo yaseCanada ebusweni boMhlaba,” abacwaningi babhala ocwaningweni.
Ngaphezu kwalokho, indawo eqine kakhulu yaseCanada yasondelana neyaseSiberia ngenxa yokuhlukana.Lokhu, futhi, kwaqinisa indawo yaseSiberia, abacwaningi babhala.
Kodwa-ke, la mabhulokhi amabili akubhalansi ethambile, ngakho "ukulungiswa okuncane kuphela ekucushweni kwamanje okungahlehlisa inkambiso yamanje ye-North Pole ngaseSiberia," abacwaningi babhala ocwaningweni.Ngamanye amazwi, ukusunduza endaweni eyodwa noma kwenye kungathumela inyakatho kazibuthe emuva eCanada.
Ukwakhiwa kabusha kokunyakaza kwezigxobo kazibuthe okwedlule e-North Pole kubonisa ukuthi amaconsi amabili, futhi ngezinye izikhathi amathathu, abe nomthelela ekumeni kwe-North Pole ngokuhamba kwesikhathi.Eminyakeni engu-400 edlule, amaconsi aye abangela ukuba iNorth Pole ibambezeleke enyakatho yeCanada, kusho abacwaningi.
"Kodwa kule minyaka engu-7,000 edlule, [i-North Pole] ibonakala ihamba ngokuzungeza indawo yendawo ngaphandle kokubonisa indawo ekhethwayo," abacwaningi babhala kulolu cwaningo.Ngokusho kwemodeli, ngo-1300 BC isigxobo saphinde sathuthela eSiberia.
Kunzima ukusho ukuthi kuzokwenzekani ngokulandelayo."Isibikezelo sethu ukuthi izigxobo zizoqhubeka zibheke eSiberia, kodwa ukubikezela ikusasa kunzima futhi ngeke siqiniseke," kusho uLivermore.
Isibikezelo sizosekelwe "ekuqashweni okuningiliziwe kwensimu ye-geomagnetic ebusweni bomhlaba nasemkhathini eminyakeni embalwa ezayo," abacwaningi babhala ocwaningweni olushicilelwe ku-inthanethi ngoMeyi 5 kumagazini i-Nature Geoscience.
Isikhathi esilinganiselwe, ungabhalisa kunoma imaphi amajenali ethu esayensi athengiswa kakhulu ngemali encane engu-$2.38 ngenyanga noma isaphulelo sika-45% senani elivamile lezinyanga ezintathu zokuqala.
U-Laura ungumhleli we-Live Science we-archeology nezimfihlakalo ezincane zokuphila.Ubuye abike ngesayensi evamile, kuhlanganise ne-paleontology.Umsebenzi wakhe uvezwe kuThe New York Times, Scholastic, Popular Science, kanye ne-Spectrum, iwebhusayithi yocwaningo lwe-autism.Uthole imiklomelo eminingi kwi-Association of Professional Journalists kanye neWashington Newspaper Publishers Association ngokubika kwakhe ephephandabeni eliphuma masonto onke eduze kwaseSeattle.U-Laura uneziqu ze-BA in English Literature and Psychology azithola eNyuvesi yase-Washington e-St. Louis kanye ne-MA ku-Science Writing yase-New York University.
I-Live Science iyingxenye ye-Future US Inc, iqembu labezindaba lamazwe ngamazwe kanye nomshicileli wedijithali ohamba phambili.Vakashela iwebhusayithi yethu yebhizinisi.