Most modern lighting operation is fairly straightforward – switches flip on/off, maybe even dim. More recently connected bulbs have offered the additional benefits of wireless settings, and some even ...

When we interpret a shaded picture as a three-dimensional (3D) scene, our visual system often needs to guess the position of the light source in order to resolve a convex-concave ambiguity. For more ...

A mutant seedling revealed how plant tissues scatter incoming light, allowing plants to sense its direction and move toward it. On a shelf lined with terra cotta pots, herbs bend their stems toward ...