A pattern of distorted lines is visible as a reflection in this close-up view of a human eye. By observing the deformation of illumination patterns reflected off the eye's surface, researchers in ...
If light were a particle, we would expect two overlapping spots of light to appear on the wall as different photons pass through each of the two slits. Instead, what Young found was that the light was ...
How a 3D-printed design can create a diffraction pattern in a simple science experiment about optics.