a. the compound eyes of a dragonfly. b. Microscopic image of the insect compound eye. c. the profile of the dragonfly compound eye. d. Schematic illustration of the fabrication of 3D artificial ...

Light travels at different speeds based on the medium it passes through. For example, in a vacuum, it travels at 3.0 × 10^8 m/s in a straight line. But when directed towards glass, air, diamond, water ...