Light pollution dramatically reduces the visibility of star s.

Light pollution, also known as photopollution or luminous pollution, is excessive or obtrusive artificial light.

* Light pollution is the alteration of light levels in the outdoor environment ( from those present naturally ) due to man-made sources of light.

* Light pollution is the introduction by humans, directly or indirectly, of artificial light into the environment.

Light pollution competes with starlight in the night sky for urban residents, interferes with astronomical observatories, and, like any other form of pollution, disrupts ecosystems and has adverse health effects.

Light pollution can be divided into two main types:

Light pollution is a side effect of industrial civilization.

* Light pollution :- includes light trespass, over-illumination and astronomical interference.

Light pollution is an example of an externality because the consumption of street lighting has an effect on bystanders that is not compensated for by the consumers of the lighting.

Image: Edgewater 1915 air pollution. jpg |< center > 1914 Cartoon from San Antonio Light </ center >

* Light pollution

* Light pollution, in the dark-sky movement

Category: Light pollution

* Light pollution

* Light pollution: Projects that operate at night, or that include security lighting ( such as streetlights in a parking lot ), may be accused of causing light pollution.

Light pollution is a significant problem for amateur astronomers but becomes less late at night when many lights are shut off.

Light pollution ( glare ) is another commonly reported complication of those who have had LASIK.

* Light pollution reduction

Category: Light pollution

In this shutter speed | 10-second exposure ( photography ) | exposure photo, facing south toward Sagittarius ( constellation ) | Sagittarius, three forms of light pollution obscure the stars and faintly visible Milky Way in the suburban night sky over Southern California: skyglow, glare ( vision ) | glare, and light pollution # Light trespass | light trespass.

Light, especially daylight, is always bad for wine.

* " Absalom, Absalom " is the title of a song on the 1996 Compass CD Making Light of It by singer / songwriter Pierce Pettis, incorporating several elements of the biblical narrative.

Alfheim (, " elf home ") is one of the Nine Worlds and home of the Light Elves in Norse mythology and appears also in Anglo-Scottish ballads under the form Elfhame ( Elphame, Elfame ) as a fairyland, sometimes modernized as Elfland ( Elfinland, Elvenland ).

That which is called Álfheim is one, where dwell the peoples called Light elves ; but the Dark-elves dwell down in the earth, and they are unlike in appearance, but by far more unlike in nature.

Light therapy is one of several approaches to treating bipolar disorder.

Anheuser-Busch uses what is in many jurisdictions a legally-protected mark-of-origin indicating Czech provenance and humorous advertising campaigns to promote Budweiser, such as the " Real Men of Genius " radio and television commercials for Bud Light.

:< u > The Copenhagen Interpretation </ u >: Light is neither.

* Light roux: The secret to making a good gumbo is pairing the roux with the protein.

Light interaction is often approximated by the even simpler models: diffuse reflection and specular reflection, although both can be BRDFs.

One of Dublin's newest monuments is the Spire of Dublin, or officially titled " Monument of Light ".

Light incident at a given point in the space downstream of the slit is made up of contributions from each of these point sources and if the relative phases of these contributions vary by 2π or more, we may expect to find minima and maxima in the diffracted light.

The Docklands Light Railway ( the DLR ) is an automated light metro or light rail system opened in 1987 to serve the redeveloped Docklands area of London.

The system is owned by Docklands Light Rail Limited, part of the London Rail division of Transport for London.

Light of composite wavelengths ( natural sunlight ) disperses into a visible spectrum passing through a prism, because of the wavelength dependent refractive index of the prism material ( dispersion ); that is, each component wave within the composite light is bent a different amount.

# Kōmyō ( 光明 ) is a phrase used in Japanese Jodo Shinshu Buddhism to refer to the Infinite Light of Amitabha Buddha.

Light is inverted through a small hole or lens from outside, and projected onto a surface or screen.

In the future, it is expected to be made up of around 10 lines, with some over-capacity expected lines considered to be made Light Metro or Heavy Metro.

Light sent down into a gravity well is blueshifted, whereas light sent in the opposite direction ( i. e., climbing out of the gravity well ) is redshifted ; collectively, these two effects are known as the gravitational frequency shift.

* Jesus is the Light of the World

The battle of Balaclava is noted for its famous ( or rather infamous ) charge of the Light Brigade.

William Gibson ( who wrote an early script for Alien 3 ) seems particularly fascinated: a minor character in Virtual Light, Lowell, is described as having New York XXIV tattooed across his back, and in Idoru a secondary character, Yamazaki, describes the buildings of nanotech Japan as Giger-esque.

The song " Jill ", on the album Blue Light, Red Light ( 1991 ) is about her.