Kulokhu okuthunyelwe kwebhulogi, ngizoxoxa ngokwelashwa kokukhanya okubomvu kwezibazi. Izibazi zingahlukaniswa ngezinhlobo ezahlukahlukene, njengezibazi zenduna noma izibazi ezindala.
Ngaphambi kokuqala ukufunda lesi sihloko, kufanele uqaphele ukuthi angincomi ukuthi noma ubani, ikakhulukazi labo abanezibazi ezinzima, belashwe ngaphandle kokubona udokotela kuqala. Izibonelo lapha ukwelapha ukukhanya okubomvu kwangemva kokuhlinzwa noma amasu okukhipha isibazi sokwelapha ukukhanya okubomvu, ngakho-ke uma unezinkinga zesibazi, sicela uthintane nodokotela wakho kuqala!
Noma kunjalo, akunandaba ukuthi hlobo luni lwezibazi olwa nazo, ngizohlola isayensi yalezi zihloko ngemininingwane eyengeziwe ngezansi: