Those between 200 and 400 nanometers constitute the invisible spectrum, which includes the ultraviolet radiation from the sun. Wavelengths between roughly 400 and 800 nanometers form the visible light ...

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 ...

Blue-light glasses were everywhere a few years ago, promising to save our screen-obsessed society from ourselves.

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 ...

As the U.S. continues to wait for newer sunscreen ingredients, patients should use tinted sunscreens to protect against ...

Infrared light lies beyond the visible light spectrum, but photos shot with infrared film or filters let us peer inside these hidden worlds. This marks the fourth time Kolari, a maker of ...

This time it is a writeup on the best ways to create IR light sources from regular lights. Since normal flashlight bulbs emit a broad enough spectrum to include visible light and IR light ...

To understand where black falls on the color spectrum, first consider what light actually is. Light is radiation visible to the human eye Light is energy called electromagnetic radiation. It’s made up ...