People love the rainbow of ROYGBIV colors: red, orange, yellow, green, blue, indigo and violet. Human eyes perceive visible light as this array of colors. You may notice that some colors you can ...

Light is more than what we see. The Sun sends out a number of waves of light in different wavelengths. Find out about wavelengths and the electromagnetic spectrum. Science Trek is available to stream ...

How can we measure visible light? The electromagnetic spectrum includes all forms of light energy, known as electromagnetic radiation. (1) Different types of electromagnetic radiation such as radio ...

There is a lot more to light than what mere human eyes can detect, but a device in your pocket can help you see beyond your biological limits. Our eyes can only detect colors of light that we see as a ...

“Why does the sky turn green before or during a tornado?” asked Katherine Crawford’s fifth-graders at West Oak Middle School in Mundelein. “Red sky at night, sailor’s delight” is an old saying that ...