Love at First Sight: How Light Affects Our Vision

Have you ever wondered how we as humans are able to perceive the world with our eyes? If so, you already have experience in thinking about light. Light is an electromagnetic wave that allows us to see. Our brains receive information from the light rays that enter our eyes and construct an image of the world around us.

Light rays broken into component colors through a prism.

Some fun facts about light:

The speed of light in a vacuum is 299,792,458 meters per second.
The speed of light in a vacuum is a universal constant in all reference frames.
The speed of anything with mass is always less than the speed of light in a vacuum.