All articles starting with J
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Johnson Matthey
Johnson Matthey is a British chemicals company centered on platinum group metals refining, recycling, and emission-control catalysts, with a PGM heritage spanning over 200 years.
Johnson neuroectodermal syndrome
Johnson neuroectodermal syndrome (Johnson-McMillin syndrome, OMIM 147770) is a rare autosomal dominant disorder with alopecia, anosmia, conductive hearing loss with microtia, and hypogonadotropic hypogonadism; onset in childhood, prevalence under 1 in 1,000,000.
Johnson Righeira
Johnson Righeira, stage name of Stefano Righi, is an Italian singer and songwriter who co-founded the Italo disco duo Righeira, known for the 1983 hit "Vamos a la playa".
Johnson solid
A Johnson solid, also called a Johnson polyhedron, is one of the 92 strictly convex polyhedra with regular polygon faces that are not Platonic or Archimedean solids, prisms, or antiprisms.
Johnson Space Center
Johnson Space Center, also known as the Manned Spacecraft Center, is NASA's center for human spaceflight near Houston, Texas, home of Mission Control and astronaut training since 1961.
Johnson Wax Headquarters
Johnson Wax Headquarters, also known as the Johnson Wax Building, is the S. C. Johnson & Son headquarters campus in Racine, Wisconsin, designed by Frank Lloyd Wright.
Johnson-Kendall-Roberts theory
The Johnson-Kendall-Roberts theory, abbreviated JKR, is a 1971 contact mechanics model describing adhesive contact between elastic bodies by balancing elastic deformation energy against surface energy.
Johnson–Cook model
The Johnson–Cook model is a phenomenological constitutive relation predicting the flow stress and failure of metals as separable functions of plastic strain, strain rate, and temperature.
Johnson–Corey–Chaykovsky reaction
The Johnson–Corey–Chaykovsky reaction is an organic reaction in which a sulfur ylide transfers a methylene group, converting aldehydes and ketones to epoxides, imines to aziridines, and alkenes to cyclopropanes.
Johnson–Nyquist noise
Johnson–Nyquist noise, also called thermal noise or Johnson noise, is electrical noise generated by random thermal motion of charge carriers in any conductor, first measured in 1928.
Johnson's Shut-Ins State Park
Johnson's Shut-Ins State Park, Reynolds County, Missouri, where the Black River cuts Precambrian rhyolite into pools and rapids; camping, Ozark Trail access, and the 2005 Taum Sauk reservoir flood.
Johnsonville Fossil Plant
Johnsonville Fossil Plant was a coal-fired power plant operated by the Tennessee Valley Authority near New Johnsonville, Tennessee, generating its first electricity in 1951 and its last in 2017.
Johnston Atoll
Johnston Atoll, an uninhabited U.S. Pacific atoll 716 nautical miles southwest of Honolulu, is a National Wildlife Refuge within the Pacific Islands Heritage Marine National Monument, formerly used for nuclear testing and chemical weapons disposal.
Johnston County, North Carolina, United States
Johnston County, North Carolina, a county formed in 1746 from Craven County, named for Governor Gabriel Johnston, seat Smithfield; 256,448 residents (2025 estimate), fast-growing Raleigh exurb with farming and biopharmaceutical industry.
Johnstown Flood
Johnstown Flood (Great Flood of 1889): disaster of May 31, 1889, when the neglected South Fork Dam, owned by Pittsburgh's South Fork Fishing and Hunting Club, released 20 million tons of water, killing 2,209 people and causing $17 million in damage.
Johnstown flood of 1977
Flash flood of July 19–20, 1977 in Johnstown, Pennsylvania, the city's third great flood after 1889 and 1936: 6–12 inches of rain in 6–8 hours, failure of seven dams including Laurel Run, about 76–85 deaths, and $300+ million in damage.
Johnstown, Pennsylvania
Johnstown, Pennsylvania: Cambria County city founded in 1800 by Joseph Johns, a steel center hit by the 1889 South Fork Dam flood (2,209 deaths) and floods of 1936 and 1977; population 18,411 in 2020.
Johny Hendricks
Johny Hendricks, "Bigg Rigg," born 1983, American retired MMA fighter and two-time NCAA wrestling champion who won the UFC welterweight title in 2014, lost controversial decisions to St-Pierre and Lawler, and retired in 2018 amid weight-cut failures.
Johny Walker
Johny Walker (जॉनी वॉकर), born Badruddin Jamaluddin Kazi, was a Hindi film comedian (1951-1997, about 300 films) discovered as a bus conductor, renamed after the whisky brand by Guru Dutt, star of Pyaasa and C.I.D.
Johor
Johor, Malaysia's southernmost sultanate state, capital Johor Bahru; heir of the Malacca Sultanate with its own 1895 constitution and military force. Second most populous state, third-largest economy, tied to Singapore by the Causeway and the 2025 JS-SEZ.
Johor Bahru
Johor Bahru, capital of Johor, Malaysia, founded 1855 as Iskandar Puteri and renamed 1 January 1866 by Temenggong Abu Bakar. Border city opposite Singapore, linked by the 1924 Causeway and the upcoming 4 km RTS Link rail service.
Johor Darul Ta'zim F.C.
Johor Darul Ta'zim FC (JDT), the Southern Tigers, Malaysian club owned by Tunku Ismail since 2013; 12 straight league titles since 2014, 2015 AFC Cup winners, 109-game unbeaten world record, No.6 in Opta Asia rankings.
Johor Zoo
Johor Zoo (Zoo Johor), Malaysia's oldest zoo, founded 1928 by Sultan Ibrahim in Johor Bahru; state-run, non-profit, 90 species; closed for RM8.1 million upgrading, reopened 30 August 2024 with record attendance and Visit Johor 2026 tiger mascots Cuping and Jucy.
Johor-Jambi War
The Johor-Jambi War was a series of conflicts between the sultanates of Johor and Jambi from 1667 to 1679 over control of trade through the Strait of Malacca.
Johor–Singapore Causeway
The Johor–Singapore Causeway, also known as the Johor Causeway, is a 1,056-meter road and rail crossing of the Johor Strait between Singapore and Malaysia, opened in 1924.
Joi Harris
Joi 'SJ' Harris (Sequana Joi Harris, 1976-2017), Brooklyn-born American motorcycle road racer, first licensed African-American woman professional road racer; killed in a Deadpool 2 motorcycle stunt crash in Vancouver.
Joi Lansing
Joi Lansing (Joyce Renee Brown, 1929–1972), American pin-up model, film and TV actress, and nightclub singer; MGM contract at 14, Zita in Touch of Evil's opening shot, Shirley Swanson on The Bob Cummings Show, Gladys Flatt on The Beverly Hillbillies, died of breast cancer at 43.
Joia Mukherjee
Joia Mukherjee is an American physician who joined Partners In Health as Chief Medical Officer in 2000, treating HIV and tuberculosis in Haiti and other poor countries.
Joice Heth
Joice Heth, enslaved African American woman (died February 19, 1836) exhibited by P.T. Barnum from 1835 as George Washington's 161-year-old nurse; a public autopsy concluded she was about 80, exposing the hoax that launched Barnum's show-business career.
Joichiro Fujiwara
Joichiro Fujiwara (藤原丈一郎), born in 1996 in Osaka, is a Japanese singer and actor, the oldest member of the J-pop group Naniwa Danshi, which debuted in 2021.