Kungani kunelambu lenkungu elilodwa langemuva?
Kunodaba lwesayensi lokuba nenkungu eyodwa ngemuva, efakwe ohlangothini lomshayeli, ukwenza imoto iphephe uma ishayela. Ngokwemithethonqubo yokufakwa kwezibani zemoto, kufanele kufakwe isibani esisodwa senkungu sangemuva, kuyilapho kungekho mthethonqubo oyimpoqo wokufakwa kwezibani zenkungu zangaphambili. Uma likhona, isibani senkungu sangaphambili kufanele sibe mabili. Ukuze ulawule izindleko, amanye amamodeli asezingeni eliphansi angakhansela isibani senkungu ngaphambili futhi afake isibani esisodwa senkungu sangemuva. Ngakho-ke, uma kuqhathaniswa namalambu enkungu amabili angemuva, isibani esisodwa senkungu singathuthukisa ukunaka kwemoto yangemuva. Ukuma kwelambu lenkungu elingemuva elifakiwe kufana ncamashi nelambu lamabhuleki, okulula ukudida izinhlobo ezimbili zamalambu bese kudala izingozi zokuphepha. Ngakho-ke, isibani esisodwa senkungu empeleni siwukubonakaliswa okungcono kokuphepha kwemoto.