Isu tinogona kuwana affiliate makomisheni paunotenga kubva kune zvinongedzo pane yedu saiti.Hezvino mashandiro ayo.
Ongororo itsva yakaratidza kuti North Pole yakazendamira yakananga kuSiberia kubva kumusha wayo wechinyakare muCanadian Arctic apo mapoka makuru maviri akavigwa pasi pevhu pamuganho wepakati-mantle ari mukukweva kwehondo.
Aya mavara, nzvimbo dzeasina kunaka magineti pasi peCanada neSiberia, anobatanidzwa mukukunda-kutora-kwese kurwa.Sezvo madonhwe achichinja chimiro uye simba remagineti, pane anokunda;Vatsvagiri vakaona kuti nepo huwandu hwemvura pasi peCanada husina simba kubva 1999 kusvika 2019, huwandu hwemvura pasi peSiberia hwakawedzera zvishoma kubva 1999 kusvika 2019. muchidzidzo.
"Hatisati tamboona zvakadai," Phil Livermore, muongorori anotungamira uye mubatsiri purofesa we geophysics paYunivhesiti yeLeeds kuUnited Kingdom, akaudza Live Science mune email.
Masayendisiti paakatanga kuwana North Pole (painonongedza kambasi) muna 1831, yaive kuchamhembe kweCanada mudunhu reNunavut.Vatsvagiri vakakurumidza kuona kuti iyo yekuchamhembe magineti pole yaida kukukurwa, asi kazhinji isiri kure zvakanyanya.Pakati pa1990 na2005, chiyero icho magineti matanda akatama chakasvetuka kubva mukumhanya kwenhoroondo isingapfuure mamaira gumi nemashanu pagore kusvika kumakiromita makumi matanhatu pagore, vaongorori vanonyora muchidzidzo chavo.
Muna Gumiguru 2017, iyo magineti yekumaodzanyemba pole yakayambuka mutsetse wepasi rose kumabvazuva kwehemisphere, ichipfuura mukati me242 mamaira (390 makiromita) eiyo geographic North pole.Ipapo iyo yekuchamhembe magineti pole inotanga kuenda kumaodzanyemba.Zvakawanda zvachinja zvekuti muna 2019, nyanzvi dze geologist dzakamanikidzwa kuburitsa gore kutanga kwemhando nyowani yemagineti yenyika, mepu inosanganisira zvese kubva pakufamba nendege kuenda kune smartphone GPS.
Mumwe anogona kungofungidzira kuti nei Arctic yakabva kuCanada ichienda kuSiberia.Zvakadaro kusvika Livermore nevamwe vake vaona kuti madonhwe ndiwo aikonzeresa.
Iyo magnetic field inogadzirwa nesimbi yemvura inotenderera muPasi pakadzika pekunze mukati.Nokudaro, kuchinja kwehuwandu hwesimbi inotenderera inoshandura nzvimbo yemagnetic north.
Nekudaro, iyo magnetic field haina kugumira kune yakakosha.Maererano naLivermore, mitsara yemagineti "inobuda" kubva paNyika.Zvinoitika kuti madonhwe aya anoonekwa panoonekwa mitsetse iyi."Kana iwe uchifunga nezvemagineti mitsara sepaghetti yakapfava, makwapa acho akafanana nemasumbu espaghetti anonamira kunze kwePasi," akadaro.
Vatsvakurudzi vakaona kuti kubva muna 1999 kusvika muna 2019, imwe yakadzika pasi peCanada yakatambanudzwa kubva kumabvazuva kusvika kumadokero uye yakakamurwa kuita zviduku zviviri zvakabatanidzwa, zvichida nekuda kwekuchinja kwechimiro chekuyerera kukuru pakati pa1970 na1999. Imwe yemavara yakanga yakasimba kudarika zvimwe, asi zvakazara, kureba "kwakakonzera kupera simba kwenzvimbo yeCanada paPasi pePasi," vaongorori vakanyora muchidzidzo ichi.
Mukuwedzera, iyo yakanyanya kusimba nzvimbo yeCanada yakava pedyo neSiberia nekuda kwekuparadzaniswa.Izvi, zvakare, zvakasimbisa nzvimbo yeSiberia, vatsvakurudzi vanonyora.
Nekudaro, mabhuroko maviri aya ari muchiyero chakapfava, saka "kungogadziridzwa kudiki kune ikozvino kumisikidzwa kunogona kudzoreredza maitiro aripo eNorth Pole akananga kuSiberia," vaongorori vanonyora muchidzidzo ichi.Mune mamwe mazwi, kusundira kune imwe nzvimbo kana imwe kunogona kutumira magineti kuchamhembe kudzokera kuCanada.
Kuvakazve kwekare remagineti pole kufamba kuNorth Pole kunoratidza kuti madonhwe maviri, uye dzimwe nguva matatu, akakanganisa chinzvimbo cheNorth Pole nekufamba kwenguva.Mumakore 400 apfuura, madonhwe aya akaita kuti North Pole imire kuchamhembe kweCanada, vanotsvakurudza vanodaro.
"Asi mukati memakore 7,000 apfuura, [North Pole] inoratidzika kunge yakafamba-famba munharaunda yenzvimbo zvisinganzwisisiki pasina kuratidza nzvimbo yaunoda," vatsvakurudzi vakanyora muchidzidzo ichi.Maererano nemuenzaniso, muna 1300 BC danda rakashandurawo rakananga kuSiberia.
Zvakaoma kutaura zvichazoitika."Kufanotaura kwedu ndeyekuti matanda acharamba achienda kuSiberia, asi kufanotaura nezveramangwana kwakaoma uye hatigoni kuva nechokwadi," akadaro Livermore.
Kufembera kwacho kuchabva pa "kutarisisa kwakadzama kwenzvimbo ye geomagnetic paPasi uye muchadenga mumakore mashoma anotevera," vaongorori vakanyora muongororo yakabudiswa online May 5 mumagazini Nature Geoscience.
Kwenguva shoma, unokwanisa kunyoresa kune chero ezvinyorwa zvedu zvesainzi zvinotengeswa zvakanyanya nemari shoma se$2.38 pamwedzi kana 45% kubva pamutengo wenguva dzose wemwedzi mitatu yekutanga.
Laura ndiye mupepeti weLive Sayenzi yekuchera matongo uye zvidiki zvehupenyu zvakavanzika.Iye zvakare anoshuma nezve general science, kusanganisira paleontology.Basa rake rakaratidzwa muThe New York Times, Scholastic, Yakakurumbira Sayenzi, uye Spectrum, webhusaiti yekutsvagisa autism.Akagamuchira mibairo yakawanda kubva kuAssociation of Professional Journalists neWashington Newspaper Publishers Association nekuda kwekutaura kwake mupepanhau revhiki nevhiki pedyo neSeattle.Laura ane BA muChirungu Literature uye Psychology kubva kuWashington University muSt. Louis uye MA muScience Writing kubva kuYunivhesiti yeNew York.
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