42,772 articles
KALI (electron accelerator)
KALI (Kilo Ampere Linear Injector) is a family of single-shot pulsed electron accelerators developed at the Bhabha Atomic Research Centre, India, used for flash X-ray radiography, plasma research, and high-power microwaves.
Kali ahargana
Kali ahargana is the count of civil days since the Kali Yuga epoch of 18 February 3102 BCE, used in Indian astronomy to compute planetary positions.
Kali Yuga (कलियुग)
Kali Yuga (कलियुग), also called the Kali Age, is the fourth and present world age in Hindu cosmology, an age of moral decline traditionally begun in 3102 BCE.
Källén-Lehmann spectral representation
The Källén-Lehmann spectral representation is an exact, nonperturbative formula in quantum field theory expressing a field's propagator as an integral of free propagators weighted by a nonnegative spectral density.
Kalman filter
The Kalman filter is a recursive algorithm that estimates a system's hidden state by combining a motion model with noisy measurements, introduced by Rudolf E. Kalman in 1960.
Kálmán J. Szabó
Kálmán J. Szabó is a Swedish-based organic chemist, professor, and Head of the Department of Organic Chemistry at Stockholm University, working in catalysis for organoboron and organofluorine compounds.
Kaluza–Klein theory
Kaluza–Klein theory is the 1920s proposal by Theodor Kaluza and Oskar Klein that gravity and electromagnetism unify in five-dimensional spacetime with a tiny fifth dimension.
Kam-Biu Luk
Kam-Biu Luk (陸錦標) is an experimental particle physicist who co-led the Daya Bay Reactor Neutrino Experiment, which made the first definitive measurement of θ13 in 2012.
Kamaʻehuakanaloa Seamount
Kamaʻehuakanaloa Seamount, formerly Lōʻihi Seamount, is an active submarine shield volcano 30 km south of the Island of Hawaiʻi, the youngest in the Hawaiian–Emperor chain.
Kamara Vrandečić
Kamara Vrandečić, also recorded as Qamarniso or Kamarniso, is an Uzbek-American chemist and Uzbek Wikipedia administrator whose first name gave Wikidata its Q item prefix.
Kamen
Kamen (Kamchatka volcano), a dormant 4,585 m stratovolcano in the Klyuchevskaya group between Klyuchevskoy, Bezymianny, and Ploskie Sopky; late Pleistocene edifice, no Holocene eruptions, eastern sector collapse 1,200-1,300 years ago.
Kamikaze (typhoon)
The kamikaze (神風, "divine wind") refers to the typhoons of 1274 and 1281 that wrecked Kublai Khan's Mongol invasion fleets of Japan, ending Mongol attempts to conquer the country.
Kamioka Observatory (神岡宇宙素粒子研究施設)
Kamioka Observatory, also known as Kamioka Uchū Soryūshi Kenkyū Shisetsu, is a University of Tokyo facility operating the Super-Kamiokande neutrino detector in Gifu Prefecture, Japan.
KamiokaNDE
Kamiokande, the Kamioka Nucleon Decay Experiment, was a 3,000-ton water Cherenkov detector in Japan's Kamioka mine that operated from 1983 to 1995 in search of proton decay.
KamLAND
KamLAND (Kamioka Liquid Scintillator Antineutrino Detector) is a kiloton-scale liquid scintillator neutrino detector in the Kamioka mine in Gifu, Japan, which confirmed neutrino oscillations with reactor antineutrinos and made the world's first geoneutrino detection in 2005.
Kamoʻoalewa
Kamoʻoalewa, minor planet 469219, is a roughly 18-meter near-Earth asteroid in a quasi-satellite orbit around Earth, discovered in 2016 in Hawaii and targeted by China's Tianwen-2 sample-return mission.
Kamran Abbasi
Kamran Abbasi is a British physician and medical editor, editor of the Journal of the Royal Society of Medicine since 2005 and editor in chief of The BMJ since 2022.
Kamran Behnia
Kamran Behnia is a condensed-matter physicist at CNRS and ESPCI Paris who studies heat and charge transport in quantum materials, from bismuth to liquid helium-3.
Kan extension
A Kan extension is a category theory construction that extends a functor along another functor in a universal way, introduced by Daniel Kan in 1958.
Kan'ei
Kan'ei (寛永) was a Japanese era name (nengō) used from 1624 to 1644 in the Edo period, spanning the sakoku seclusion edicts and the Kan'ei Tsūhō copper coin.
Kana M. Sureshan
Kana M. Sureshan is a professor of chemistry at IISER Thiruvananthapuram, India, known for developing topochemical azide–alkyne cycloaddition, used to synthesize crystalline polymers and sugar polymers.
Kanamycin
Kanamycin is a bactericidal aminoglycoside antibiotic discovered in 1957 by Hamao Umezawa's group in Tokyo from the bacterium Streptomyces kanamyceticus, once used mainly against tuberculosis but now seldom used.
Kane quantum computer
The Kane quantum computer is a proposed design storing quantum information in the nuclear spins of phosphorus atoms in silicon, proposed by Bruce Kane in 1998.
Kang L. Wang
Kang L. Wang, also known as Kang Wang, is a Distinguished Professor at UCLA known for topological spintronics, using topological insulators to switch magnetization with small currents.
Kang Min Ok
Kang Min Ok (옥강민) is a South Korean inorganic solid-state chemist and professor of chemistry at Sogang University in Seoul, known for ultraviolet birefringent crystals.
Kang-Kuen Ni
Kang-Kuen Ni is a Harvard professor of chemistry and physics known for creating the first ultracold gas of polar molecules and performing the first molecular quantum operations.
Kanlaon
Kanlaon, also spelled Canlaon, is an active andesitic stratovolcano on Negros Island in the central Philippines, the island's highest point at 2,422 m, in eruption since 2024.
Kannan Soundararajan
Kannan Soundararajan is an Indian-born analytic number theorist, Bass Professor at Stanford since 2006, known for zeta function moments, quantum unique ergodicity, and the pretentious approach to primes.
Kano model
The Kano model, also called Kano analysis, is a quality management framework classifying product attributes into five categories by how they affect customer satisfaction, introduced in 1984.
Kaolin
Kaolin, also called china clay, is a soft white clay consisting mainly of kaolinite, named after Gaoling in China and consumed chiefly by the paper and ceramics industries.