Akunandaba noma izibani zenkungu ezingangaphambili noma zangemuva, umgomo empeleni unjalo. Ngakho-ke kungani inkungu yangaphambili nengemuva ikhanyisa imibala ehlukene? Le ndlela yokuzivumelanisa nezimo zasendaweni. Ezimweni eziningi, amalambu enkungu angemuva abomvu, ngakho-ke kungani kungenjalo inkungu emhlophe engemuva yenkungu? Njengoba amalambu abuyela emuva ayekade "ephayona", ibomvu yayisetshenziswa njengomthombo wokukhanya ukugwema ukungalingani kahle. Yize ukukhanya kufana namalambu e-brake. Eqinisweni, umgomo awufani nokuthi umphumela awufani, esimweni sokubonakala okuphansi kakhulu kufanele uvule izibani zenkungu ukuze ungezele ukukhanyisa. Kwenze kube lula ngezimoto ezivela ngemuva ukuze uthole.
