Isithombe - NASA
Amalambu aseNyakatho angumbukwane wemvelo obabazekayo ebusika. Umbukwane abantu baseCanada abangawujabulela emahoreni ambalwa ngemuva kwe-solstice yasebusika nalokho I-NASA ithathe isithombe nge »band yasebusuku» (DNB) yethuluzi lakho le-VIIRS (I-Visible Infrared Imagin Radiometer Suite, noma i-Visible Infrared Radiometer ngeSpanishi) yesethelayithi yeSuomi NPP.
I-DNB ithola amasiginali wokukhanya okufiphele njenge-auroras, ukuvutha komoya, ukuvutha kwegesi, nokukhanya kwenyanga okukhanyayo. Kuleso senzakalo, ithole i-aurora borealis "isiphepho" enyakatho yeCanada.
Kwenzeka kanjani ama-auroras?
Ama-auroras yizinto ezijwayelekile zezigxobo, enyakatho naseningizimu. Lapho zenzeka esigxotsheni eseningizimu, zaziwa ngokuthi ama-aoraora aseningizimu, futhi lapho zenzeka esigxotsheni esisenyakatho, njengezibani ezisenyakatho. Kokubili kwenzeka lapho umoya welanga ushayisana namandla kazibuthe womhlaba. Ngokwenza njalo, amandla ayelula futhi aqoqelwe ngaphakathi, kuze kube yilapho imigqa yamagnetic field ihlangana kabusha futhi iwadedela ngokuzumayo, ihambisa ama-electron abuyele emhlabeni.
Lapho nje lezi zinhlayiya zingqubuzana nengxenye ephezulu yomkhathi, lokho esikubiza ngokuthi i-aurora kuyakhiqizwa, okuyikho okwenza isibhakabhaka sezindawo ezisezindaweni ezibandayo sibe nombala.
Ividiyo yamalambu aseNyakatho eCanada
Manje njengoba sesazi ukuthi zenziwa kanjani, ake sizijabulele. Kungenzeka sikude nezigxobo, kodwa okungenani sizohlala sinamavidiyo. Futhi-ke lokhu kuyamangaza ngempela:
Abantu baseCanada babe, ngaphandle kokungabaza, ukuqala kwesizini ebanda kunazo zonke yonyaka wemibala egqamile futhi ehlaba umxhwele, awucabangi? Amalambu aseNyakatho aheha ukunakwa okuningi, ngoba uyazi ukuthi, uma unenhlanhla yokuzibona, into engenzeka kakhulu ukuthi zizokumangaza. Ukuhamba kwayo nemibala yayo kubonakala sengathi kuthathwe ephusheni, okuyinto, ngenhlanhla, engokoqobo.