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The light verbs are underlined, and the words in bold together constitute the light verb constructions. Each of these constructions is the (primary part of the) main predicate of the sentence. Note that the determiner a is usually NOT part of the light verb construction. We know that it is not part of the light verb construction because it is ...
In some cases, ambient light may be used as a fill, in which case additional lighting provides the stronger light source, for example in bounce flash photography. The relative intensity of ambient light and fill light is known as the lighting ratio, an important factor in calculating contrast in the finished image.
Light exerts physical pressure on objects in its path, a phenomenon which can be deduced by Maxwell's equations, but can be more easily explained by the particle nature of light: photons strike and transfer their momentum. Light pressure is equal to the power of the light beam divided by c, the speed of light.
When appearing on light bulb packages, brightness means luminous flux, while in other contexts it means luminance. [5] Luminous flux is the total amount of light coming from a source, such as a lighting device. Luminance, the original meaning of brightness, is the amount of light per solid angle coming from an area, such as the sky.
The modern definition of a small clause is an [NP XP] in a predicative relationship. This definition was proposed by Edwin Williams in 1980, who introduced the concept of Predication. [5] He proposed that the subject NP and the predicate XP are related via co-indexation, which is made possible by c-command. [5]
Door with sidelights. A sidelight or sidelite in a building is a window, usually with a vertical emphasis, that flanks a door or a larger window. [1] Sidelights are narrow, usually stationary and found immediately adjacent to doorways.
Accent lighting focuses light on a particular area or object. [1] It is often used to highlight art or other artifacts. [2] Common types of accent lights include wall sconces, floodlights, recessed lights, torchère lamps, or track lighting. The brighter light from the accent lamp creates visual interest to a room.
An important property of light fixtures is the luminous efficacy or wall-plug efficiency, meaning the amount of usable light emanating from the fixture per used energy, usually measured in lumen per watt. A fixture using replaceable light sources can also have its efficiency quoted as the percentage of light passed from the "bulb" to the ...