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2. Reflective surfaces (climate engineering) - Wikipedia

   en.wikipedia.org/wiki/Reflective_surfaces...

   Since only 43% of light occurs in the visible light spectrum, reflectance can be improved without affecting color by increasing the reflectance of UV and IR light. [20] High surface roughness can also contribute to the low solar reflectances of asphalt shingles, as these shingles are made of many small approximately spherical granules which ...

3. Cleanroom - Wikipedia

   en.wikipedia.org/wiki/Cleanroom

   UV devices can be fitted into ceiling light fixtures and irradiate air, killing potentially infectious particulates, including 99.99 percent of airborne microbial and fungal contaminants. [15] UV light has previously been used to clean surface contaminants in sterile environments such as hospital operating rooms.

4. Ultraviolet germicidal irradiation - Wikipedia

   en.wikipedia.org/wiki/Ultraviolet_germicidal...

   A low-pressure mercury-vapor discharge tube floods the inside of a biosafety cabinet with shortwave UV light when not in use, killing microbes on irradiated surfaces. Ultraviolet germicidal irradiation (UVGI) is a disinfection technique employing ultraviolet (UV) light, particularly UV-C (180–280 nm), to kill or inactivate microorganisms ...

5. Germicidal lamp - Wikipedia

   en.wikipedia.org/wiki/Germicidal_lamp

   Low power consumption of semiconductors introduce UV disinfection systems that utilized small solar cells in remote or Third World applications. [2] By 2019, LEDs made up 41.4% of UV light sales, up from 19.2% in 2014 [3] The UV-C LED global market is expected to rise from $223m in 2017 to US$991m in 2023. [4]

6. Infrared heater - Wikipedia

   en.wikipedia.org/wiki/Infrared_heater

   The enclosed filament operates at around 2,500 K (2,230 °C; 4,040 °F), producing more shorter-wavelength radiation than open wire-coil sources. Developed in the 1950s at General Electric, these lamps produce about 100 watts per inch (4 W/mm) and can be combined to radiate 500 watts per square foot (5,400 W/m 2).

7. Suspect charged with murder, arson for allegedly setting ...

   www.aol.com/female-passenger-killed-being-set...

   A 33-year-old man was charged Monday for allegedly setting on fire and killing a woman on a New York subway train in what authorities called a “brutal murder” and an example of “depraved ...