Avtory i prava: NOAA
Poyasnenie:
Magnitnyi kompas ukazyvaet ne na
Severnyi geograficheskii,
a na magnitnyi polyus Zemli,
kotoryi v nastoyashee vremya nahoditsya v arkticheskoi chasti
Kanady i dreifuet k severu vdol' ellipticheskoi
traektorii so srednei skorost'yu bolee soroka metrov v sutki.
Soglasno imeyushimsya dannym, za 4.5 milliarda let, chto
proshli s momenta obrazovaniya nashei planety, Severnyi magnitnyi
polyus uspel pobyvat' na bol'shei chasti zemnoi poverhnosti.
Svoim magnitnym polem nasha planeta obyazana chastichno ionizirovannomu
vneshnemu yadru,
kotoroe vrashaetsya bystree poverhnosti.
Strelkoi otmechen ostrov Ellef Ringnes --
eto to mesto, gde seichas nahoditsya Severnyi magnitnyi polyus.
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NASA Official: Jay Norris. Specific rights apply.
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& Michigan Tech. U.
Publikacii s klyuchevymi slovami:
Earth - magnetic north - Zemlya - Sever - Severnyi magnitnyi polyus - Polyus
Publikacii so slovami: Earth - magnetic north - Zemlya - Sever - Severnyi magnitnyi polyus - Polyus | |
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