Yintoni izibane zenkungu? Umahluko phakathi kwezibane zenkungu ngaphambili nangasemva?
Izibane zenkungu ziyahluka kwizibane ezibalekayo kulwakhiwo lwangaphakathi kunye nendawo emiselwe kwangaphambili. Izibane zenkungu zidla ngokubekwa emazantsi emoto, ekufutshane endleleni. Izibane zenkungu zine-engile yokusika umqadi kumphezulu wendlu kwaye ziyilelwe kuphela ukukhanyisa umhlaba phambi okanye emva kwezithuthi endleleni. Enye into eqhelekileyo yilensi etyheli, iglowubhu yesibane etyheli, okanye zombini. Abanye abaqhubi bacinga ukuba zonke izibane zenkungu zityheli, ithiyori yobude obumthubi; Ukukhanya okutyheli kunobude obude, ngoko bunokungena kwiatmosfera engqindilili. Ingcamango yayikukuba ukukhanya okutyheli kunokudlula kumasuntswana enkungu, kodwa kwakungekho datha yenzululwazi ebambekayo yokuvavanya le ngcamango. Izibane zenkungu zisebenza ngenxa yendawo yokunyuka kunye nokujolisa i-Angle, kungekhona umbala.