Abney Effect RGB
Abney may refer to: * Abney (surname), includes a list of people with the name * Abney effect, a colour-related phenomenon Places * Abney, Derbyshire, a village in the county of Derbyshire, England * Abney, West Virginia, a locality in Raleigh County, West Virginia, United States * Abney Grange, a village in the county of Derbyshire, England See also * Abney Park * Abney Hall * Abney and Abney Grange * Topographic Abney level An Abney level and clinometer is an instrument used in surveying which consists of a fixed sighting tube, a movable spirit level that is connected to a pointing arm, and a protractor scale. An internal mirror allows the user to see the bubble i ...

Abney (surname)
Abney is an English surname, which evolved in spelling from the surname D'Aubigny. The name originated from meaning "of" or "from" Saint-Aubin-d'Aubigné (now in Ille-et-Vilaine department). Notable people with the surname include: * Derek Abney (born 1980), American footballer *Don Abney (1923–2000), American jazz pianist * Larry Abney (born 1977), American basketball player *Mary Abney (1676–1750), English aristocrat * Sir Thomas Abney (1640–1722), Lord Mayor of London * Thomas Abney (judge) (1690 or 1691 – 1750), English barrister and judge *William de Wiveleslie Abney (1844–1920), English chemist and educationist See also *Abney (other) *Abney-Hastings Abney-Hastings is a double-barrelled surname created from the surnames Abney and Hastings. The family is most notable for their royal heritage as the senior descendants of George Plantagenet, 1st Duke of Clarence, as explained in the BBC histori ... {{Surname English-language surnames ...
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Abney Effect
The Abney effect or the purity-on-hue effect describes the perceived hue shift that occurs when white light is added to a monochromatic light source. The addition of white light will cause a desaturation of the monochromatic source, as perceived by the human observer. However, a less intuitive effect of the perceived white light addition is the change in the apparent hue. This hue shift is physiological rather than physical in nature. This variance of hue as a result of the addition of white light was first described by the English chemist and physicist Sir William de Wiveleslie Abney in 1909, although the date is commonly reported as 1910. A white light source can be created by the combination of red, blue, and green light. Abney demonstrated that the cause of the apparent change in hue was the red and green light that comprised this light source, and that the blue light component had no contribution to the Abney effect.W. de W. Abney. “On the Change in Hue of Spectrum C ...
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Abney, Derbyshire
Abney ( Old English ''Abba's Island'') is a village in the English county of Derbyshire. The settlement was mentioned as ''Habenai'' in the Domesday book of 1086. It was recorded as ''Abbeneia'', ''Abbeney(a)'' and ''Abbeneye'' between 1200 and 1431, and as ''Abney'' from 1416. The village is too small to have its own amenities. The closest church, pub and shops are to be found in Eyam. The village was in the civil parish of Outseats, but in April 2015 the Outseats parish was merged with Hathersage parish, the latter name being used for the two combined parishes. Notable residents William Newton, poet, was born near Abney at Cockey Farm.Dictionary of National Biography The ''Dictionary of National Biography'' (''DNB'') is a standard work of reference on notable figures from British history, published since 1885. The updated ''Oxford Dictionary of National Biography'' (''ODNB'') was published on 23 September ... now in the public domain References External links www.pe ...
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Abney, West Virginia
Abney is an unincorporated community in Raleigh County, West Virginia West Virginia is a state in the Appalachian, Mid-Atlantic and Southeastern regions of the United States.The Census Bureau and the Association of American Geographers classify West Virginia as part of the Southern United States while the ..., United States. Abney is southeast of Sophia. Abney was once known as Phillips. References External links Coalfields of the Appalachian Mountains - Abney, WV
Unincorporated communities in Raleigh County, West Virginia
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Abney Grange
Abney may refer to: * Abney (surname), includes a list of people with the name * Abney effect, a colour-related phenomenon Places * Abney, Derbyshire, a village in the county of Derbyshire, England * Abney, West Virginia, a locality in Raleigh County, West Virginia, United States * Abney Grange, a village in the county of Derbyshire, England See also * Abney Park * Abney Hall * Abney and Abney Grange * Topographic Abney level An Abney level and clinometer is an instrument used in surveying which consists of a fixed sighting tube, a movable spirit level that is connected to a pointing arm, and a protractor scale. An internal mirror allows the user to see the bubble i ...

Derbyshire
Derbyshire ( ) is a ceremonial county in the East Midlands, England. It includes much of the Peak District National Park, the southern end of the Pennine range of hills and part of the National Forest. It borders Greater Manchester to the north-west, West Yorkshire to the north, South Yorkshire to the north-east, Nottinghamshire to the east, Leicestershire to the south-east, Staffordshire to the west and south-west and Cheshire to the west. Kinder Scout, at , is the highest point and Trent Meadows, where the River Trent leaves Derbyshire, the lowest at . The north–south River Derwent is the longest river at . In 2003, the Ordnance Survey named Church Flatts Farm at Coton in the Elms, near Swadlincote, as Britain's furthest point from the sea. Derby is a unitary authority area, but remains part of the ceremonial county. The county was a lot larger than its present coverage, it once extended to the boundaries of the City of Sheffield district in South Yorkshire ...
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