Namhlanje sixhomekeke kumbane kuyo yonke into, mhlawumbi kuya kufuneka sizibuze ukuba singakwazi ukuphila ubomi obuqhelekileyo na ukuba isaqhwithi selanga sihlasela uMhlaba. Iya kuba nzima, akunjalo? Nangona ngethamsanqa akukho nto ibonisa ukuba into enje iyakwenzeka kwiminyaka embalwa ezayo, umongameli wase-United States, u-Barack Obama, iqalile ukuthatha amanyathelo okhuseleko.
Kodwa kutheni? Kuya kwenzeka ntoni eMhlabeni ukuba isichotho selanga siyibethile?
Iplanethi yethu "ikhuselwe" ngemigca emininzi engabonakaliyo ephuma embindini wayo ukuya kumda apho umoya ulanga khona. Le migca ibizwa ngokuba Imagnethi yomhlaba okanye intsimi ye-geomagnetic. Olu tshintsho ngokuhamba kwexesha ngenxa yokuhamba kweentsimbi ezinyibilikisiweyo ezifumaneka kumbindi wangaphandle weplanethi. Ngokwenza njalo, ipali esemantla iyahamba, nangona icotha kangangokuba ingasinyanzeli ukuba silungelelanise iikhampasi zethu rhoqo. Ngapha koko, ukuze zombini iipali zibuye umva, kufuneka kudlule amakhulu amawaka eminyaka.
Kuthekani ngelanga? Inkosi yethu yeenkwenkwezi isinika ukukhanya nobushushu, kunye nembonakalo yobuhle obungenakuthelekiswa nanto: Izibane zaseMantla. Kodwa amaxesha ngamaxesha kukho izaqhwithi zelanga, okuthetha ukuba Ukuqhuma kwenzeka kumoya welanga, kuphuma amasuntswana anamandla angena kumazibuthe. Esi sisenzeko esinokuthintelwa, kodwa sinokuqikelelwa ukunciphisa umonakalo onokubakho.
Kwimeko apho isiganeko esinjalo senzeka, Zonke iinkqubo zobume behlabathi (GPS), i-Intanethi, umnxeba, nayo nayiphi na enye inkqubo ye-elektroniki iya kuchaphazeleka. Ngamafutshane, sinokuba neengxaki ezininzi ukuqhubeka nokukhokela ubomi esibuphilayo, nangona bekungazukuqala. Eyokugqibela yayingo-1859, nangona ngelo xesha babengenayo i-Intanethi okanye i-GPS, kwakusandula (ngo-1843) ukuba iinethiwekhi zonxibelelwano ze-telegraph zenziwe kwaye baye basokola kaninzi.
Ukuba yenzekile namhlanje, umonakalo ubunokubaluleka ngakumbi.