Hiki iā mākou ke loaʻa nā komisina pili ke kūʻai ʻoe mai nā loulou ma kā mākou pūnaewele.Penei ka hana ana.
Ua hōʻike ʻia kahi noiʻi hou e hilinaʻi ana ka North Pole i Siberia mai kona home kuʻuna ma Canadian Arctic ʻoiai ʻelua mau puʻupuʻu nunui i hūnā ʻia ma lalo o ka ʻāina ma ka palena kumu-mantle e komo i kahi huki kaua.
ʻO kēia mau wahi, nā wahi o ka mana magnetic maikaʻi ʻole ma lalo o Kanada a me Siberia, ke komo nei i ka hakakā lanakila-lawe-a pau.Ke hoʻololi nei nā kulu i ke ʻano a me ka ikaika o ke kahua magnetic, aia kahi lanakila;Ua ʻike nā mea noiʻi ʻoiai ua nāwaliwali ka nui o ka wai ma lalo o Kanada mai 1999 a 2019, ua piʻi iki ka nui o ka wai ma lalo o Siberia mai 1999 a 2019. "I ka hui pū ʻana, ua alakaʻi kēia mau hoʻololi i ka ʻoiaʻiʻo ua neʻe ka Arctic i Siberia," kākau nā mea noiʻi. ma ke ao ana.
"ʻAʻole mākou i ʻike i kekahi mea e like me kēia ma mua," i haʻi aku ai ʻo Phil Livermore, ka mea noiʻi alakaʻi a me ke kaukaʻi o ka geophysics ma ke Kulanui o Leeds ma United Kingdom, i haʻi aku iā Live Science ma kahi leka uila.
I ka ʻike mua ʻana o ka poʻe ʻepekema i ka Pole ʻĀkau (ma kahi o nā kiko o ka nila) i ka makahiki 1831, aia ia ma ka ʻāina ʻĀkau o Nunavut.Ua ʻike koke ka poʻe noiʻi i ka neʻe ʻana o ka pole magnetic ʻākau, akā ʻaʻole i mamao loa.Ma waena o 1990 a me 2005, ua lele ka nui o ka neʻe ʻana o nā pole magnetic mai ka wikiwiki o ka mōʻaukala ʻaʻole i ʻoi aku ma mua o 9 mau mile (15 mau kilomita) i kēlā me kēia makahiki a i 37 mau mile (60 mau kilomita) i kēlā me kēia makahiki, kākau nā mea noiʻi i kā lākou noiʻi.
I ʻOkakopa 2017, ua hele ka pole ʻākau magnetic i ka laina lā honua ma ka ʻaoʻao hikina hikina, e hele ana i loko o 242 mau mile (390 mau kilomita) o ka pole ʻākau.A laila hoʻomaka ka neʻe ʻana o ka pole magnetic akau i ka hema.Nui nā mea i hoʻololi ʻia i ka makahiki 2019, ua koi ʻia ka poʻe geologists e hoʻokuʻu i hoʻokahi makahiki ma mua i kahi hoʻohālike magnetic hou o ka honua, kahi palapala ʻāina e pili ana i nā mea āpau mai ka hoʻokele mokulele a hiki i ke kelepona GPS.
Hiki i kekahi ke koho wale i ke kumu i haʻalele ai ka Arctic iā Kanada no Siberia.ʻO ia a hiki i ka ʻike ʻana o Livermore a me kāna mau hoa hana ʻo nā hāʻule ke hewa.
Hoʻokumu ʻia ke kahua magnetic e ka hao wai e kaʻawili ana i loko o ka hohonu o waho o ka Honua.No laila, hoʻololi ka hoʻololi i ka nuipaʻa o ka hao koli i ke kūlana o ka ʻākau magnetic.
Eia naʻe, ʻaʻole i kaupalena ʻia ke kahua magnetic i ke kumu.Wahi a Livermore, ʻo nā laina mākēneki "huhū" mai ka Honua.ʻIke ʻia kēia mau hāʻule ma kahi e ʻike ʻia ai kēia mau laina."Inā ʻoe e noʻonoʻo nei i nā laina kahua magnetic e like me ka spaghetti palupalu, ua like nā kiko me nā puʻupuʻu o ka spaghetti e kū mai ana mai ka Honua," wahi āna.
Ua ʻike nā mea noiʻi mai ka makahiki 1999 a hiki i 2019, ʻo kahi slick ma lalo o Kanada e holo ana mai ka hikina a hiki i ke komohana a ʻokiʻoki i ʻelua mau liʻiliʻi pili liʻiliʻi, ma muli paha o nā loli i ke ʻano o ke kahe nui ma waena o 1970 a me 1999. ʻO kekahi o nā kiko i ʻoi aku ka ikaika ma mua o ka. 'ē aʻe, akā i ka holoʻokoʻa, ʻo ka elongation "ua hāʻawi i ka nāwaliwali o ka wahi Kanada ma ka honua," i kākau ai nā mea noiʻi i loko o ka noiʻi.
Eia kekahi, ua kokoke loa ka wahi ʻoi loa o Kanada i ka Siberian ma muli o ka māhele ʻana.ʻO kēia, ua hoʻoikaika i ka wahi Siberian, kākau nā mea noiʻi.
Eia nō naʻe, aia kēia mau poloka ʻelua i kahi kaulike maʻalahi, no laila "ʻo nā hoʻololi liʻiliʻi wale nō i ka hoʻonohonoho o kēia manawa e hiki ke hoʻohuli i ke ʻano o kēia manawa o ka North Pole i Siberia," kākau nā mea noiʻi i loko o ka noiʻi.I nā huaʻōlelo ʻē aʻe, hiki ke hoʻouna i kahi pahu i kahi ʻāpana a i ʻole ke hoʻouna i ka ʻākau magnetic i Kanada.
ʻO ka hana hou ʻana o ka neʻe ʻana o ka mākoi i hala ma ka Pole ʻĀkau e hōʻike ana he ʻelua kulu, a i kekahi manawa ʻekolu, ua hoʻololi i ke kūlana o ka Pole ʻĀkau i ka manawa.I nā makahiki he 400 i hala iho nei, ua hoʻomau nā hāʻule i ka North Pole i ka ʻākau o Kanada, wahi a nā mea noiʻi.
"Akā i nā makahiki 7,000 i hala iho nei, ua ʻike ʻia ka neʻe ʻana o ka ʻĀkau ʻĀkau a puni ka pole ʻāina me ka ʻole o ka hōʻike ʻana i kahi wahi i makemake ʻia," i kākau ai nā mea noiʻi i loko o ke aʻo ʻana.Wahi a ke kumu hoʻohālike, ma ka makahiki 1300 BC ua neʻe pū ka pou i Siberia.
He paʻakikī ke haʻi i ka mea e hiki mai ana."ʻO kā mākou wānana e hoʻomau ka neʻe ʻana o nā pou i Siberia, akā paʻakikī ka wānana i ka wā e hiki mai ana a ʻaʻole hiki iā mākou ke maopopo," wahi a Livermore.
E hoʻokumu ʻia ka wānana ma luna o ka "nānā kikoʻī o ke kahua geomagnetic ma ka ʻili o ka Honua a ma ka lewa i nā makahiki e hiki mai ana," i kākau ai nā mea noiʻi ma kahi noiʻi i paʻi ʻia ma ka pūnaewele Mei 5 ma ka puke pai Nature Geoscience.
No ka manawa kaupalena, hiki iā ʻoe ke kau inoa i kekahi o kā mākou mau puke puke ʻepekema kūʻai nui loa no ka liʻiliʻi o $2.38 i kēlā me kēia mahina a i ʻole 45% o ke kumu kūʻai maʻamau no nā mahina ʻekolu mua.
ʻO Laura ka mea hoʻoponopono o Live Science no ka archeology a me nā mea pohihihi liʻiliʻi o ke ola.Hōʻike pū ʻo ia i nā ʻepekema ākea, me ka paleontology.Ua hōʻike ʻia kāna hana ma The New York Times, Scholastic, Popular Science, a me Spectrum, kahi pūnaewele noiʻi autism.Ua loaʻa iā ia nā makana he nui mai ka Association of Professional Journalists a me ka Washington Newspaper Publishers Association no kāna hōʻike ʻana ma kahi nūpepa pule ma Seattle.Loaʻa ʻo Laura i kahi BA ma English Literature and Psychology mai ke Kulanui o Wakinekona ma St.
He ʻāpana ʻo Live Science o Future US Inc, he hui media honua a he mea hoʻopuka kikohoʻe alakaʻi.E kipa i kā mākou pūnaewele hui.