The visible spectrum of light includes red, orange, green, blue, indigo and violet, and each color has its own particular wavelength. When sunlight strikes lipstick, some of the wavelengths are ...

The color temperature of a light, measured in kelvins, is its most noticeable characteristic. A candle, at 1900 K, appears orange. Daylight, at 5500 K, is much whiter and bluer. A 5500-K bulb ...

In this International Year of Light, it is particularly appropriate to review the historical concept of what is light and the controversies surrounding the extent of the visible spectrum. Today we ...

Nikola Tesla - Improved Lighting. Early Lighting. The various inventors of early electric lights knew essentially of two ways to produce illumination: by running currents through wires or fibers ...

Scientists have learned that compact fluorescent light bulbs could give off ultraviolet radiation if their inner coating cracks. Light-emitting diodes, another eco-friendly lighting option, won't ...

LED Monitor Backlights May Mean Lights Out for Fluorescent Lamps LED Monitor Backlights May Mean Lights Out for Fluorescent Lamps. April 9, 2002. 2 Min Read. Originally Published MPMN April 2002.

This is done by the light’s interior fluorescent coating, which is able to absorb most of the UV radiation and emit lower-energy wavelengths in the visible spectrum.