All articles starting with K
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Kerner's three-phase traffic theory
Kerner's three-phase traffic theory, introduced by Boris S. Kerner in 1996–2000, divides freeway congestion into three phases: free flow, synchronized flow, and the wide moving jam.
Kernicterus
Kernicterus, also called bilirubin encephalopathy and kernicterus spectrum disorder, is irreversible neonatal brain damage from unconjugated bilirubin crossing the blood-brain barrier, causing athetoid cerebral palsy and hearing loss; preventable with phototherapy and exchange transfusion.
Kerning
Kerning is the adjustment of horizontal space between two specific letters in typeset text, such as "AV" or "Ty", so that pairs with contrasting shapes appear evenly spaced.
Kernite
Kernite, formerly rasorite, is a hydrated sodium borate mineral and one of the world's principal ores of boron, discovered in Kern County, California, in 1925.
Kernkraft 400
Kernkraft 400 is a 1999 German techno single by Zombie Nation, the alias of Munich producer Florian Senfter, built on a melody sampled from the 1984 game Lazy Jones.
Kero Kero Bonito
Kero Kero Bonito (KKB), British London indie pop trio of Sarah Midori Perry, Gus Lobban, and Jamie Bulled; bilingual J-pop-influenced electropop act behind Bonito Generation, Time 'n' Place, and the Civilisation EPs.
Kerogen
Kerogen is the insoluble organic matter in sedimentary rocks that generates petroleum and natural gas when buried and heated, and is Earth's most abundant organic matter.
Kerogen Energy
Kerogen Energy is the Cayman Islands-domiciled fund vehicle of Kerogen Capital, a Hong Kong private equity firm founded in 2007 that backs international upstream oil and gas companies.
Kerolin
Kerolin (Kerolin Nicoli Israel Ferraz), born 1999, Brazilian forward for FC Barcelona and Brazil; ex-Ponte Preta, Madrid CFF, North Carolina Courage, Manchester City; 2022 and 2025 Copa América winner, 2024 Olympic silver, record Barcelona women's signing.
Keroplatidae
Keroplatidae, the predatory fungus gnats (Rondani, 1856), is a worldwide family of Diptera in Bibionomorpha with nearly 1,000 species in about 100 genera; web-spinning carnivorous larvae, exclusive dipteran bioluminescence, and a 2020 six-subfamily reclassification distinguish it.
Kerosene
Kerosene is a light petroleum distillate of hydrocarbons with 9 to 16 carbon atoms, used for heating, lighting, and jet fuel, called paraffin in the United Kingdom.
Kerosene lamp
A kerosene lamp, also known as a paraffin lamp, is a lighting device that burns kerosene through a wick or pressurized jet, long used where electricity is absent.
Kerouac (Mercurian crater)
Kerouac crater, Mercury, 110 km wide, H-04 Raditladi quadrangle, 25.21°N 230.90°W. IAU-named October 12, 2015 for Jack Kerouac (1922–1969), American poet and author; a C2-class, partially filled crater.
Kerovot
Kerovot (קרובות), singular kerovah, are Hebrew liturgical poems, or piyyutim, inserted into the morning Amidah prayer on special Sabbaths, festivals, and New Year in the Ashkenazic liturgy.
Kerplunk (album)
Kerplunk! (also Kerplunk) is Green Day's second studio album, released December 17, 1991 on Lookout! Records (catalog 46); the first with drummer Tré Cool, it sold over four million copies worldwide and prompted the band's move to Reprise and Dookie.
Kerr effect
The Kerr effect, also called the Kerr electro-optic effect or Kerr nonlinearity, is the electric-field-induced birefringence proportional to the square of the field, discovered by John Kerr in 1875.
Kerr L. White
Kerr Lachlan White (1917–2014) was a Canadian-born physician and epidemiologist known as the founder of health services research in the United States and for his 1961 paper "The Ecology of Medical Care."
Kerr metric
The Kerr metric, or Kerr solution, is the exact vacuum Einstein solution describing the spacetime around a spinning, uncharged black hole, found by Roy P. Kerr in 1963.
Kerr Smith
Kerr Smith (Kerr Van Cleve Smith, born 1972) is an American actor, Jack McPhee on Dawson's Creek, site of TV's first loving gay male kiss on primetime network TV, later Final Destination, Charmed, Life Unexpected, The Fosters, Riverdale.
Kerr-lens mode-locked thin-disk oscillator
A Kerr-lens mode-locked thin-disk oscillator is a femtosecond solid-state laser, first demonstrated in 2012 at the Max Planck Institute of Quantum Optics, delivering over 200 W of average power without external amplification.
Kerr–Newman metric
The Kerr–Newman metric is the exact Einstein–Maxwell solution describing the spacetime around a stationary, rotating, electrically charged mass, defined by its mass, charge, and spin and published in 1965.
Kerr–Schild form
The Kerr–Schild form is an ansatz in general relativity writing a metric as flat spacetime plus a null-vector term, introduced by Kerr and Schild in 1965.
Kerr, Stuart and Company
Kerr, Stuart and Company was a British locomotive manufacturer founded in Glasgow in 1881, based at Stoke-on-Trent, which built about 1,500 locomotives before collapsing in 1930.
Kerrang!
Kerrang! is a British rock and heavy metal magazine founded in June 1981 as a Sounds special by Geoff Barton and Alan Lewis, later a weekly, now a Wasted Talent digital platform with a quarterly print edition.
Kerri Ann Pottharst
Kerri Ann Pottharst, born 1965 in Adelaide, is an Australian beach volleyball player, three-time Olympian, and Sydney 2000 gold and Atlanta 1996 bronze medallist with Natalie Cook.
Kerri Chandler
Kerri Chandler is an American DJ, producer, and label head born in East Orange, New Jersey, described as a pioneer of deep house's New Jersey sound.
Kerri Chandler presents 'Reel-2-Reel' live
Kerri Chandler presents 'Reel-2-Reel' live is a live show by American deep-house producer Kerri Chandler, who DJs on vintage reel-to-reel tape machines instead of turntables or laptops.
Kerri Evelyn Harris
Kerri Evelyn Harris is an American Democratic politician and Air Force veteran who represents Delaware's 32nd District, served as Majority Whip, and became House Majority Leader in 2024.
Kerri Green
Kerri Lee Green (born 1967, Fort Lee, New Jersey) is an American actress and director, the cheerleader Andy in The Goonies (1985), also of Summer Rental, Lucas, Three for the Road, and the indie film Bellyfruit (1999), and distinct from therapist Keri Green and politician Jerri Green.
Kerri Kasem
Kerri Kasem is an American radio and television host and elder abuse advocate. She founded the Kasem Cares Foundation, which helped pass the Visitation Bill in 21 states.