light — light1 lightful, adj. lightfully, adv. /luyt/, n., adj., lighter, lightest, v., lighted or lit, lighting. n. 1. something that makes things visible or affords illumination: All colors depend on light. 2. Physics … Universalium
Light pollution — This article is about light pollution in the visible spectrum. For information on pollution in the radio spectrum, see radio spectrum pollution. This time exposure photo of New York City at night shows skyglow, one form of light pollution … Wikipedia
Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr … Wikipedia
Scale invariance — In physics and mathematics, scale invariance is a feature of objects or laws that do not change if length scales (or energy scales) are multiplied by a common factor. The technical term for this transformation is a dilatation (also known as… … Wikipedia
Light meter — A light meter is a device used to measure the amount of light. In photography, a light meter is often used to determine the proper exposure for a photograph. Typically a light meter will include a computer, either digital or analogue, which… … Wikipedia
Scale model — A scale model of the Tower of London. This model can be found inside the tower … Wikipedia
State of Vietnam referendum, 1955 — Ngô Đình Diệm declared himself president of the newly proclaimed Republic of Vietnam after a fraudulent referendum. The State of Vietnam referendum of 1955 determined the future form of government of the State of Vietnam, the nation that was to… … Wikipedia
State (polity) — This article is about the general concept of the state. For the subjects of international law, see Sovereign state. For other uses, see State (disambiguation). The frontispiece of Thomas Hobbes Leviathan A state is an organised political… … Wikipedia
Beaufort scale — Force 12 at sea. The Beaufort Scale ( / … Wikipedia
Tired light — is a class of hypothetical redshift mechanisms that were proposed as an alternative explanation for the redshift distance relationship as alternatives to the Big Bang and the Steady State cosmologies, both of which proposed that Hubble s law was… … Wikipedia
Chihuahua (state) — For other uses, see Chihuahua (disambiguation). Chihuahua Estado Libre y Soberano de Chihuahua State … Wikipedia
