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Ketch
A ketch is a two-masted, fore-and-aft-rigged sailing vessel with the mizzenmast forward of the rudderpost; it served for centuries as cargo craft and cruising yacht.
Kettering Bug
The Kettering Bug, formally the Kettering Aerial Torpedo, was an unmanned American flying bomb developed by Charles F. Kettering in 1918 and a forerunner of the cruise missile.
Kettle
A kettle, also known as a tea kettle or water kettle, is a covered vessel with a spout and handle used to boil water, electric since 1891.
Kettle hydroelectric plant
The Kettle hydroelectric plant is a run-of-river Manitoba Hydro station on the lower Nelson River near Gillam, northern Manitoba, with 12 units and a licensed capacity of 1,252.8 MW.
Kevin A. Wise
Kevin A. Wise is an American aerospace control engineer who spent his career at McDonnell Douglas and Boeing and was elected to the National Academy of Engineering in 2018.
Kevin Braeckmans
Kevin Braeckmans is a Belgian drug delivery and nanomedicine researcher, full professor at Ghent University, known for photoporation, a light-based technique that delivers drugs and nucleic acids into cells.
Kevin G. Bowcutt
Kevin G. Bowcutt is an American aerospace engineer and Boeing's Chief Scientist of Hypersonics, best known for pioneering the viscous-optimized hypersonic waverider and designing the X-51A scramjet demonstrator.
Kevin Huang
Kevin Huang, also published as Keqin Huang, is a professor of mechanical engineering at the University of South Carolina who researches solid oxide fuel cells.
Kevin J. Krizek
Kevin J. Krizek is an American urban planner and transportation researcher, professor at the University of Colorado Boulder, known for arguing that planning should target accessibility rather than mobility.
Kevin L. Tomsovic
Kevin L. Tomsovic is an American electrical engineer specializing in power systems computation and grid resilience, elected to the National Academy of Engineering in 2023.
Kevin Lin (entrepreneur)
Kevin Lin (born 1982) is a Taiwanese American entrepreneur, co-founder and former chief operating officer of Twitch, which Amazon acquired in 2014 for about $970 million.
Kevin M. Ryan
Kevin M. Ryan is a chemical nanotechnology researcher and Vice President Research at the University of Limerick, known for silicon nanowire battery anodes and semiconductor nanocrystals.
Kevin R. Anderson
Kevin R. Anderson is an American metallurgical engineer who developed the Mercalloy family of recycled-aluminum diecasting alloys at Mercury Marine and was elected to the National Academy of Engineering.
Kevin Rose
Kevin Rose (Robert Kevin Rose) is an American internet entrepreneur and investor best known as founder of the social news site Digg, which he launched in 2004.
Kevin Sivula
Kevin Sivula is an American chemical engineer and full professor at EPFL in Switzerland, where he leads research on photoelectrochemistry for solar fuels and carbon dioxide reduction.
Kevin Solomon
Kevin V. Solomon is a chemical and biological engineer at the University of Delaware known for engineering anaerobic fungi and testing plastic-degrading enzymes, who received the 2025 PECASE award.
Kevin Systrom
Kevin Systrom (born 1983) is an American entrepreneur who co-founded Instagram with Mike Krieger in 2010 and sold it to Facebook in 2012 for about $1 billion.
Kevin Warwick
Kevin Warwick is a British cyberneticist at the University of Reading known for implanting chips and electrodes into his own body to link his nervous system to computers.
Kevlar
Kevlar is the DuPont trademark for poly-paraphenylene terephthalamide, a synthetic fiber five times stronger than steel by weight, discovered by Stephanie Kwolek in 1965 and used in bullet-resistant vests.
Kew Palace
Kew Palace is the oldest building within the Royal Botanic Gardens at Kew in London, a Grade I listed former summer home of King George III.
Kewaunee Nuclear Power Plant
The Kewaunee Nuclear Power Plant was a Westinghouse pressurized-water reactor on Lake Michigan in Kewaunee County, Wisconsin, which operated from 1974 until Dominion shut it down for economic reasons in 2013.
KEXP
KEXP, formerly KCMU, is a listener-supported, non-commercial music radio station in Seattle at 90.3 FM, founded in 1972 as a University of Washington student station.
Key comparison
A key comparison is an interlaboratory comparison among National Metrology Institutes that establishes the equivalence of their national measurement standards under the CIPM Mutual Recognition Arrangement.
Key Comparison Database
The Key Comparison Database (KCDB) is the online database maintained by the BIPM in France that supports the CIPM Mutual Recognition Arrangement, listing reviewed calibration capabilities and key comparisons of national metrology institutes.
Key derivation function
A key derivation function (KDF) is a cryptographic algorithm that derives strong keys from passwords or shared secrets; password-based examples include PBKDF2, scrypt, and Argon2.
Key disclosure law
A key disclosure law, also called mandatory key disclosure, is a statute compelling someone to disclose passwords or encryption keys, with countries including the United Kingdom, France, India, and Australia having such laws.
Key encapsulation mechanism
A key encapsulation mechanism (KEM) is a set of algorithms that lets two parties securely establish a shared secret key over a public channel, for use with symmetric ciphers.
Key Lake
Key Lake is a uranium mill in the Athabasca basin of northern Saskatchewan, Canada, which since 2000 has processed high-grade ore from Cameco's McArthur River mine, forming the world's largest high-grade uranium complex.
Key size
Key size, also called key length, is the bit-length measure of a cryptographic key, and the main dial of cryptographic strength, though attacker work also depends on the algorithm.
Key System
The Key System, also known as Key Route, was a transit network serving the East Bay from 1903 to 1960, running streetcars, ferries, and Bay Bridge trains to San Francisco.