Ultraviolet (UV) lamps emit electromagnetic radiation with a wavelength between 10 nanometers (nm) and 400 nm, which is below the visible light spectrum. UV lamps have industrial uses in sterilization ...

Ultraviolet light, also known as UV light, is a form of energy traveling through space. It is a form of electromagnetic radiation with a wavelength shorter (100 - 400 nanometers) than that of visible ...

The strength of the sun's ultraviolet (UV) radiation is expressed as a Solar UV Index or Sun Index.The UV Index does not exceed 8 in the UK (8 is rare; 7 may occur on exceptional days, mostly in the ...

In some people that are photosensitive, UV light from sunlight and indoor light sources can trigger a lupus flare. In addition to sunlight, ultraviolet rays are also given off by several different ...

The International Regulations for Preventing Collisions at Sea (COLREGs) not only prescribe the actions of each vessel in all states of visibility, they also stipulate the lights that should be fitted ...

Light sensors are a type of photodetector (also called photosensors) that detect light. Different types of light sensors can be used to measure illuminance, respond to changes in the amount of light ...

Hospitals have embraced ultraviolet (UV) lights as a cleaning tool for years, using large, industrial-grade machines to decontaminate rooms. Now, smaller versions of UV sanitation lights are ...

Watch this video which explains how light travels into our eyes so that we can see things. Of course, you can only see something when there's light. And what is light? It's energy that zooms ...

The use of artificial light at night has expanded and intensified over past decades, and recent advances in LED technology have accelerated those trends. Light pollution severely disrupts nocturnal ...

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