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 ...

Their light interaction gives the illusion of purple but doesn’t change the fact that purple doesn’t have its own distinct wavelength in the visible spectrum.

A new type of versatile, economical visible-light responsive photocatalyst has been developed by researchers at the University of Johannesburg. It is simple to manufacture, efficient and extremely ...

Infrared light has longer wavelengths than visible light, and we can feel it as heat. In fact, some animals, like snakes, can see in the infrared part of the spectrum! Visible light is what we can see ...

The color red, for example, resides at one end of the visible spectrum and is the result of light with a wavelength of 620 to 750 nm. Blue light resides at the opposite end and has a shorter ...

These products rely on the visible light spectrum, in a bid to mimic the sun’s impact for those of us who spend more of our waking hours in front of a computer than we care to mention.

Using the European Space Agency's (ESA) ExoMars Trace Gas Orbiter (TGO), scientists have observed Mars' atmosphere glowing green for the first time ever — in the visible light spectrum, that is ...