(1) Different types of electromagnetic radiation such as radio waves, microwaves, visible light, and x-rays are associated with specific wavelengths. A spectrophotometer is an instrument that performs ...

It includes radio waves, microwaves, infrared light, visible light, ultraviolet, X-rays, and gamma rays. Each type of light has a different wavelength and frequency. Understanding the electromagnetic ...

Dermatologists explain how red light therapy can help with fine lines, wrinkles, acne and more. Plus the benefits of other ...

First, a quick science lesson: LED (light-emitting diode) light therapy uses different wavelengths of visible light—each of which shows up as a different color—to treat various skin conditions.