And on top of that, when that visible radiation bouncesoff those molecules, it scatters in all directions.
除此以外,当可见光波从这些分子上反射出去时,它会向四面八方扩散。
3
However using light to find one's own way around requires vastly more energy, since the eyes have to detect the tiny fraction of the light that bouncesoff each part of the scene.