An fara shi duka a cikin 1970 lokacin da Hukumar Kula da Sabis na Mahalli ta Amurka (ESSA) ta buga a cikin manema labarai wasu hotunan da tauraron dan adam na ESSA-7 ya yi daidai da Pole na Arewa. Ofaya daga cikin hotunan ya bayyana tare da sarari mai haske kuma yana bayyana wani babban rami inda yakamata ya kasance. Waɗannan hotunan sun haifar da babbar gardama tsakanin mutane, waɗanda ke mamakin menene ramin zagaye cikakke akan Arctic.
A lokacin ne editan mujallar Flying Saucer kuma masanin ilimin ufo Ray Palmer ya samo a cikin hoton da NASA ta buga wani babban dalili na ci gaba da hasashen ci gaban ƙasa.
A gefe guda, akwai labarin Admiral Richard E. Byrd wanda aka tattauna a labarin da ya gabata. Wannan mai bincike na polar ya rubuta a cikin littafin tarihinsa abin da ya rayu lokacin da yake shawagi a kan daya daga cikin Dokokin a 1928. A can, matukin jirgin ya ba da labari, ya shaida wanzuwar kwaruruka masu ban mamaki da kasancewar dabbobin da ba su da tarihi.
Waɗannan abubuwan da suka faru sun girgiza jama'a gabaɗaya, waɗanda suka fara tambayar ko rabe -rabe na duniya zai zama gaskiya. Sakamakon gogewar Byrd, Amadeo Giannini ya rubuta labarai da littattafai da dama kamar Duniyar Beyond the Poles, inda ya yi hasashen cewa Byrd bai hau saman Arctic ba, amma ya shiga ɗaya daga cikin ramukan da ke kaiwa zuwa tsakiyar Duniya bisa kuskure. .
A lokacin ne Ray Palmer, wanda ya dogara da littafin Giannini da aka ambata a baya, ya buga wannan ka'idar a cikin mujallar mujallar sa ta Disamba 1959, inda ya aika da wasiƙa mai ƙarfi a kanta. A cewar Giannini da Palmer, a lokacin da ake tsammanin ya tashi a saman Pole na Arewa a 1947, Mataimakin Admiral Byrd ya yi magana ta rediyo cewa ya gani a ƙasa cewa ba dusar ƙanƙara ba ce, amma yankunan ƙasa da duwatsu, dazuzzuka, ciyayi, tabkuna da koguna da, tsakanin gandun daji, baƙon dabba mai kama da mammoth.
A gefe guda kuma, mun sami manyan masana ilimin taurari da masana lissafi waɗanda suka goyi bayan ka'idar Hollow Earth. Ofaya daga cikinsu shine babban Dr. Edmond Halley, masanin taurarin sararin samaniya na Ingila a karni na 18 kuma mai binciken Hallet's Comet. Wannan ya zayyana cewa Duniya ba ta ciki a ciki kuma a cikinta tana da cones guda uku tare da narkakken cibiyar lawa, wanda ya zama “rana ta ciki”. Newton kuma ya yi imani da wannan ka'idar.
Wani masanin kimiyya wanda ya kare ka'idar Hollow Earth shine Leonhard Euler, masanin lissafi na ƙarni na 18. Ya bayar da hujjar cewa baya ga rami, Duniya tana da kofofi guda biyu wadanda suka yi daidai da doron duniya.
Baya ga ka’idojin kimiyya game da shi, tunanin cewa Duniya ba ta ciki a ciki ta haifar da tunanin marubuta da masu fasaha da yawa. Ofaya daga cikin sanannun ayyukan da ke magana game da ita shine Tafiya zuwa Cibiyar Duniya, Jules Verne (1864). Wani sanannen aiki shine Edgar Allan Poe's The Adventures of Arthur Gordon Pym (1833). Waɗannan litattafai da yawa sun ci gaba da raye raayin cewa Duniya ba ta da fa'ida, kuma ita ma tana da gidaje a cikinta wayewa da ta fi ta mu girma, mazaunan saman.
A halin yanzu, ana ci gaba da gudanar da gwaje -gwaje, wannan karon tare da taimakon fasahar zamani wacce muke da ita. A cikin 1965, an ƙaddamar da aikin da USSR ke jagoranta: game da yin rijiya mai zurfin kilomita 15, wanda ake kira rijiyar Kola. An ce ba a bayyana sakamakon da suka samu daga wannan aikin ba ga jama'a kuma suna iya jin hayaniyar muryoyin mutane da na dabbobi tare da taimakon makirufo masu tsananin ƙarfi.
Hakanan an gudanar da binciken raƙuman ruwa mai ƙarancin ƙarfi don gano abin da ke cikin ƙasa. A cikin waɗannan karatun, an gano cewa tsakanin zurfin kilomita 450 zuwa 500, akwai canji a farfajiya, wani nau'in layi wanda ke ƙetare wani yanki na Duniya. Kuma bayan wannan sabon abu, siginar igiyar ta ɓace gaba ɗaya, kamar akwai wani abu mara kyau daga wannan nesa. Ƙananan surutu da shiru kawai ake kamawa. Wannan gwajin bai fito fili ga hasken jama'a ba amma an ɓoye shi ga waɗanda suka yi waɗannan karatun.
Hakanan muna samun sabani a hannun mashahuran masana kimiyya, tunda sun zo ne don tabbatar da cewa kowane mita 30 zafin duniya yana ƙaruwa da digiri ɗaya. Idan haka ne, cibiyarsa (zurfin kilomita 6,500) zai kai zafin jiki na 220,000 ºC, wanda ke nufin cewa zafin da ke cikin ƙasa zai fi na ɓawon rana, wanda ya kai 6,000 ºC kawai.
Amma wannan ka'idar kawai ta sauko zuwa Duniya? amsar ita ce a'a. Masu goyon bayan wannan ka’ida suna da’awar cewa sauran duniyoyin ma sun kunshi ramukan pola biyu da rana ta ciki. Har yanzu, NASA za ta gyara hotunan da aka ɗauka na duniyoyin tsarin hasken rana don tace ramukan da suke da su a cikin sandunansu.
Sannan akwai fitilun arewa, wanda aka yi hasashen cewa su ne sakamakon rana ta ciki da aka sanya a tsakiyar duniyar. Ofaya daga cikin masu karewa - da masu haɓakawa - na wannan ka'idar shine Marshall B. Gardner, wanda ya rubuta littafin Journey to the Interior of the Earth. Gardner ya bayar da hujjar cewa akwai fitilun polar a duniyar Mars, Venus da Mercury, waɗanda ke fitowa daga haskoki na tsakiyar rana, suna ƙetare ramukan polar. Hasken polar da yake haskawa shine na Hasken Arewa, wanda ba saboda magnetism bane, amma don tsakiyar rana ta Duniya. Tambayoyi masu tunani game da wannan ka'idar:
- Me yasa aka hana tashi sama da sandunan?
- Me yasa Google Earth ke yin taƙaddama kan iyakokin polar?
- Me ya sa ake samun tsaba, tsirrai, da bishiyoyi masu iyo a cikin ruwan da ke cikin kankara?
- Me ya sa dubban tsuntsaye da dabbobi na wurare masu zafi suke yin hijira zuwa arewa a lokacin hunturu?
- Me ya sa ya fi zafi a Dokokin fiye da kilomita 1,500 daga gare su?
- Me yasa hotunan NASA ke taɓarɓarewa da Dokokin Duniya?
