To us, light is the most obvious form of electromagnetic radiation, yet it makes up just a small portion of the electromagnetic spectrum. We invite you to take this self-guided tour, which covers ...

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 ...

Although you might not think of them in this way, you are in possession of two extraordinary antennas, perfectly tuned to receive a narrow band of electromagnetic radiation. These antennas are not ...

A nanometer (nm) is a unit of length in the metric system ... used primarily to measure the atomic and molecular scale of materials and the wavelength of electromagnetic radiation. The SI system ...

The electromagnetic spectrum has many types of light waves. It includes radio waves, microwaves, infrared light, visible light, ultraviolet, X-rays, and gamma rays. Each type of light has a different ...

The only difference between these types of electromagnetic waves is the length or the wave or the “wavelength.” Since the waves all travel at the speed of light, another way to characterize the wave ...