Light is an electromagnetic event that charges matter and bends through solids and gases. It is a constant flux but our perception of it is manipulated by time. Light occupies a small spectrum of electromagnetic energy that our vision can detect. Photons emitted from charged gases or solids emerge coherently and in phase, allowing lasers to form. Light has no mass and photons have no molecular weight. With practice, we can train our vision and retinal response to customize how we see the world. The angle of incidence of light hitting a surface equals the angle of reflection. Photography transposes scenes by capturing a limited brightness range compared to human vision.