brightness+scale

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• Scale (social sciences) — In the social sciences, scaling is the process of measuring or ordering entities with respect to quantitative attributes or traits. For example, a scaling technique might involve estimating individuals levels of extraversion, or the perceived… …   Wikipedia

• Extragalactic distance scale — The extragalactic distance scale is a series of techniques used today by astronomers to determine the distance of cosmological bodies (beyond our own galaxy) not easily obtained with traditional methods. Some procedures utilize properties of… …   Wikipedia

• Bortle Dark-Sky Scale — The Bortle Dark Sky Scale is a nine level numeric measure of the night sky brightness of a particular location. It quantifies the observability of astronomical objects and the interference caused by light pollution and skyglow. John E. Bortle… …   Wikipedia

• Danjon scale — Two lunar eclipses in 2003; their ratings on the Danjon Scale would be roughly 2 (left) and 4 (right) The Danjon Scale of lunar eclipse brightness is a five point scale useful for measuring the appearance and luminosity of the Moon during a lunar …   Wikipedia

• Richter magnitude scale — Part of a series on earthquakes Types Foreshock • Aftershock • Blind thrust Doublet • Interplate • …   Wikipedia

• Logarithmic scale — A logarithmic scale is a scale of measurement that uses the logarithm of a physical quantity instead of the quantity itself. Presentation of data on a logarithmic scale can be helpful when the data covers a large range of values ndash; the… …   Wikipedia

• Seismic scale — A seismic scale is used to measure and compare the severity of earthquakes. (For a quick review, see the table of seismic scales at the end of this article.)Two fundamentally different but equally important types of scales are commonly used by… …   Wikipedia

• Timeline of knowledge about galaxies, clusters of galaxies, and large-scale structure — Timeline of galaxies, clusters of galaxies, and large scale structure of the cosmosPre 20th Century* 400s BC Democritus proposes that the bright band in the night sky known as the Milky Way might consist of stars, * 300s BC Aristotle believes the …   Wikipedia

• Ganoid scale — Ganoid Ga noid, a. [Gr. ? brightness + oid.] (Zo[ o]l.) Of or pertaining to Ganoidei. n. One of the Ganoidei. [1913 Webster] {Ganoid scale} (Zo[ o]l.), one kind of scales of the ganoid fishes, composed of an inner layer of bone, and an outer… …   The Collaborative International Dictionary of English

• Danjon scale —    a scale measuring the brightness (or rather, the darkness) of lunar eclipses, devised by the French astronomer André Louis Danjon (1890 1967). A table is provided …   Dictionary of units of measurement

• papermaking — [pā′pər māk΄iŋ] n. the making of paper papermaker n. * * * pa·per·mak·ing (pāʹpər mā kĭng) n. The process or craft of making paper.   paʹper·mak er n. * * * Introduction       formation of a matted or felted sheet, usually of cellulose fibres,… …   Universalium