Singathola amaKhomishini asebenzisana nathi lapho uthenga kusuka kuzixhumanisi esizeni sethu. Nakhu ukuthi kusebenza kanjani.
Ucwaningo olusha ukhombisile ukuthi iNorth Pole incike eSiberia isuka ekhaya layo lendabuko eCanada Arctic njengamaqembu amabili amakhulu afihlekile ngaphansi komngcele wempi.
Lezi zindawo, izindawo ezingezinhle zamandla kazibuthe ngaphansi eCanada naseSiberia, zibandakanyeka empini yokunqoba. Njengoba amaconsi aguqula ukwakheka namandla kazibuthe, kukhona onqobayo; Abaphenyi bathola ukuthi ngenkathi isisindo samanzi ngaphansi eCanada sibuthaka kusukela ngo-1999 kuye ku-2019, inqwaba yamanzi yanda kancane kusukela ngo-1999 kuye ku-2019.
"Asikaze sikubone okunje ngaphambili," Phil Livermore, ohola umsizi kanye noProfesa Wosizo Wasemoofysics e-University of Leeds e-United Kingdom, etshela isayensi ebukhoma kwi-imeyili.
Lapho ososayensi bathola kuqala i-North Pole (lapho amaphuzu enaliti yeCompass) ngo-1831, kwakusendaweni yaseNyakatho yeNanada yaseNunavut. Abaphenyi basheshe babona ukuthi isigxobo seNorth Magnetic sivame ukudonsa, kepha imvamisa akukude kakhulu. Phakathi kuka-1990 no-2005, izinga lapho izigxobo zenkanuko zithuthelwe khona ngejubane elingokomlando lamakhilomitha ayi-15) ngonyaka amakhilomitha angama-60 ngonyaka, abaphenyi babhala esifundweni sabo.
Ngo-Okthoba 2017, isigxobo se-magnetic North Pole sawela umugqa wezinsuku zomhlaba wonke e-hemisphere empumalanga, edlula kungakapheli amakhilomitha angama-390 (amakhilomitha angama-390) wesigxobo sendawo yonke. Lapho-ke isigxobo seNorth Magnetic siqala ukuhambisa eningizimu. Kuningi okushintshile ukuthi ngonyaka ka-2019, izazi zokuma komhlaba zaphoqelelwa ukudedela unyaka kusenesikhathi imodeli entsha kazibuthe yomhlaba, imephu efaka yonke into evela ku-Airplane Navigation ku-Smartphone GPS.
Umuntu angaqagela kuphela ukuthi kungani i-Arctic kwesokunxele eCanada eSiberia. Lokho kwaze kwaba yile nsivermore nozakwabo babona ukuthi amaconsi kwakufanele asolwe.
Amandla kazibuthe akhiqizwa yinsimbi ewuketshezi ezungeze umnyombo ojulile wasemhlabeni. Ngakho-ke, ushintsho lwesisindo sensimbi eswayimisayo lushintsha isikhundla se-magnetic enyakatho.
Kodwa-ke, amandla kazibuthe awakhawulelwe emgogodleni. Ngokusho kwe-livermore, imigqa yamasimu kazibuthe "Bule" iphuma emhlabeni. Kuvela ukuthi la maconsi avela lapho kuvela khona le migqa. "Uma ucabanga ngemigqa yensimu kazibuthe njenge-spaghetti ethambile, amabala afana nama-clumps e-spaghetti anamathela emhlabeni," kusho yena.
Abaphenyi bathola ukuthi kusukela ngo-1999 kuya ku-2019, kuthambekele ngaphansi kweCanada kusuka eMpumalanga kuya entshonalanga futhi kuvame ukwehlukana kubhekwe phansi, "kusho omunye wabaphetha.
Ngaphezu kwalokho, indawo enkulu yaseCanada yasondelana kakhulu neSiberia ngenxa yokuqhekeka. Lokhu, kwaqinisa indawo yaseSiberia, abacwaningi babhala.
Kodwa-ke, la mabhulokhi amabili asemakethe entekenteke, ngakho-ke "izinguquko ezincane kuphela ekucushweni kwamanje kungahlehlisa umkhuba wamanje weNorth Pole eSiberia," abaphenyi babhala ocwaningweni. Ngamanye amagama, ukucindezela kwelinye iphuzu noma enye kungathumela uMagnetic eNyakatho emuva eCanada.
Ukwakhiwa kabusha kwenhlangano ye-magnetic pole esedlule enyakatho yePole kukhombisa ukuthi amaconsi amabili, futhi kwesinye isikhathi amathathu, athonye isikhundla seNorth Pole ngokuhamba kwesikhathi. Eminyakeni engama-400 edlule, amaconsi adale i-North Pole eya ku-linger eNyakatho Canada, abacwaningi bathi.
"Kepha kule minyaka eyi-7,000 edlule, [iNorth Pole] kubonakala sengathi ihambile isizungeza esigcawini ngaphandle kokubonisa indawo ethandwayo," kusho abaphenyi. Ngokusho kwemodeli, ngo-1300 BC Isigxobo sibuye sashintshela eSiberia.
Kunzima ukusho ukuthi kuzokwenzekani ngokulandelayo. "Isibikezelo sethu ukuthi izigxobo zizoqhubeka zidlulela eSiberia, kepha ukubikezela ikusasa kunzima futhi ngeke siqiniseke," kusho uLivermore.
Isimo sezulu sizosuselwa "ekubhekeni okuningiliziwe kwensimu ye-geomagnetic emhlabeni womhlaba futhi esikhaleni eminyakeni embalwa ezayo," abaphenyi babhale ocwaningweni olushicilelwe online ngoMeyi 5 ku-Journal Nature GeoScience.
Isikhathi esinqunyelwe, ungabhalisela noma yimaphi amagamali ethu esayensi athengisayo abiza kakhulu nge- $ 2.38 ngenyanga noma ama-45% aphuma ngentengo ejwayelekile yezinyanga ezintathu zokuqala.
ULaura ungumhleli wesayensi ebukhoma ye-Archaology kanye nezimfihlakalo zempilo. Ubuye abike ngeScience ejwayelekile, kufaka phakathi i-paleontology. Umsebenzi wakhe uboniswe kwiNew York Times, iScreastic, isayensi ethandwayo, kanye ne-spectrum, iwebhusayithi yocwaningo lwe-autism. Uthole imiklomelo eminingi evela ezintathelweni eziqeqeshiwe kanye neWashington Newspaper Asker Association ngokubika kwakhe ephephandabeni lamasonto onke eduze kwaseSeattle. ULaura uphethe i-BA e-English izincwadi kanye ne-Psychology evela eWashington University eSt. Louis kanye ne-Ma in Science ebhala evela eNew York University.
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