When we are told that a shadow is merely the outline on a surface of any opaque object which intercepts the rays of light falling on that surface, the explanation seems so simple and easily understood as to make further inquiry unnecessary.
Lapho sitshelwa ukuthi isithunzi simane nje sikhonjiswa ngaphezu kwanoma iyiphi into ye-opaque ehlukanisa imisebe yokukhanya iwele kuleso sakhiwo, incazelo ibonakala ilula futhi iqondakala kalula ukwenza eminye imibuzo ingadingeki.