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Fundamental Sciences → Light


Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which is the portion of the spectrum that can be perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 nanometers (nm), or 4.00 × 10−7 to 7.00 × 10−7 m, between the infrared and the ultraviolet. This wavelength means a frequency range of roughly 430–750 terahertz (THz).

From Wikipedia

Organizations relating to Light

European Mixed Metal Solid Stabilizers Association
International Federation of Societies of Cosmetic Chemists / New York NY, USA / Est. 1959
Eurosafe / Holmfirth, UK / Est. 1988
International Sugar Organization / London, UK / Est. 1968
Association of the European Self-Medication Industry / Brussels, Belgium / Est. 1964
West African Industrial Forum
Asian Recycling Association / Est. 1978
Réseau européen de télécommunications opérationnelles météorologiques
EUROFIMA European Company for the Financing of Railroad Rolling Stock / Basel, Switzerland / Est. 1956
UNEP-DTIE Cleaner Production / Est. 1990
European Association for the Streamlining of Energy Exchange-gas / Brussels, Belgium / Est. 2002
European Federation of Energy Management Associations / Est. 1986
Balkan and Near East Railway Rates Union
Events Industry Council / Washington DC, USA / Est. 1949
International Association of Workers in the Electrical Industry
EUROGLACES - European Ice Cream Association / Brussels, Belgium / Est. 1961
Caribbean Electric Utility Services Corporation / Castries, St Lucia / Est. 1988
Water, Engineering and Development Centre / Loughborough, UK / Est. 1972
International Convention on Civil Liability for Bunker Oil Pollution Damage / London, UK / Est. 2001
International Surfing Foundation / Est. 1970
International Hologram Manufacturers Association / Sunbury-on-Thames, UK / Est. 1993
Humanitarian Safety and Protection Network / Est. 1998
European Federation for the Vitrified Clay Pipe Industry / Brussels, Belgium / Est. 1957
International Transportation Safety Association / The Hague, Netherlands / Est. 1993
ASM International / Materials Park OH, USA / Est. 1913

View all profiles (208 total) in the Yearbook of International Organizations

World Problems relating to Light

From the Encyclopedia of World Problems and Human Potential

Environmental hazards of solar radiation
Skin colour prejudice
Commercialization of the airwaves
Visual colour deficiencies
Unnatural facial colour
Diseases of retina
Obstruction of astronomical observation by environmental pollution
Optic neuritis
Laser weapons
Photographical and optical goods trade instability
Septo-optic dysplasia
Threatened species of Tarsius spectrum
Threatened species of Vampyrum spectrum
Optic neuroma
Displacement of natural light in buildings
Threatened species of Osmerus spectrum
Photographical and optical goods shortage
Limited number of available radio frequencies

Action Strategies relating to Light

From the Encyclopedia of World Problems and Human Potential

Using optical telecommunication technology
Undertaking research on health effects of increasing ultraviolet radiation
Taking measures to mitigate the health effects of increasing ultraviolet radiation
Advancing infrared imaging
Tapping cables
Darkening skin colour
Advancing laser artistry
Assisting coastal States to assess effects of additional ultraviolet radiation
Changing skin colour
Reducing skin colour prejudice
Assessing marine biological effects of increased ultraviolet radiation
Preventing impacts of ultraviolet radiation
Sharing professional interest in colour
Monitoring ultraviolet radiation
Advancing optics research
Advancing studies in photonics

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