The sky is always changing colors—from a bright blue on a clear day, to red and orange sunrises or sunsets, or multiple colors of a rainbow—there’s a lot going on that we don’t always think about. Why ...

When it comes to smartphone cameras, bigger is better. Larger image sensors and lenses have more light to work with, so they ...

If you cast your mind back to school and can remember when your teacher shone light through a prism to create an artificial rainbow, then you'll probably already know the answer to this question.

It's called 'olo.' While it was thought that the bar of rainbow colors — called a spectrum — produced when white light (like sunlight) travels through a glass prism is caused by some property ...

We all think that the visible spectrum of light — every color we can see — is represented in the rainbow. But this isn't actually true. When you hold up a crystal prism to a beam of light ...

Inside white light are the colors of the rainbow: red, orange, yellow, green, blue, indigo and violet. To see those colors, you need something called a prism — an object that can refract light ...

Light travels in waves as wavelengths. Some wavelengths are easier for humans to see, and green is the most visible from a distance. There are receptors in the eye called cones that contain ...

It is important to point out that we are not so much interested in dispersive prisms that split a beam of white light into its spectrum of colors, although they make great album covers.