All articles starting with M
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MACH-TB 2.0
MACH-TB 2.0 is the second phase of a US Department of Defense hypersonic flight test bed program, managed by the Test Resource Management Center and aiming for 50 flight tests annually.
Mach–Zehnder interferometer
The Mach–Zehnder interferometer is an optical instrument that splits a light beam into two paths and recombines them, invented by Ludwig Zehnder in 1891 and used in flow visualization and quantum experiments.
Mach–Zehnder modulator
The Mach–Zehnder modulator (MZM) is an electro-optic device that splits light into two arms and recombines it, converting a voltage-controlled phase shift into intensity modulation.
Mach's principle
Mach's principle is the proposition, named by Einstein in 1918 from Ernst Mach's 1883 critique of Newton, that inertia is determined by the distribution of all other matter in the universe.
Macha
Macha: Irish goddess of sovereignty, war, and horses tied to Armagh and Emain Macha (Navan Fort). Several figures bear her name; the pregnant Macha's race and curse (cess noínden) disable Ulster's warriors in the Táin Bó Cúailnge.
Machado de Assis
Machado de Assis, full name Joaquim Maria Machado de Assis, was a Brazilian novelist and short-story writer (1839–1908), best known for Dom Casmurro and Memórias Póstumas de Brás Cubas.
Machado de Assis Prize
The Machado de Assis Prize (Prêmio Machado de Assis) is a Brazilian literary award given annually by the Brazilian Academy of Letters for a writer's body of work.
Machado-Joseph disease protein
Ataxin-3, formally Machado-Joseph disease protein 1, is the deubiquitinating enzyme encoded by the ATXN3 gene, whose CAG repeat expansion causes spinocerebellar ataxia type 3, an autosomal dominant neurodegenerative disorder.
Machaeridia (annelid)
Machaeridia: extinct Palaeozoic armoured annelid worms (Early Ordovician to Permian) with calcite shell plates; three families; resolved as scaleworm relatives (Aphroditiformia) via Moroccan soft-part fossils.
Machaerus
Machairous (Machaerus, Greek Μαχαιροῦς), Herodian fortress east of the Dead Sea at Mukawir, Jordan; built by Alexander Jannaeus, rebuilt by Herod, site of John the Baptist's execution, destroyed by Rome in 72 CE.
Machairodontinae
Machairodontinae, the true sabre-toothed cats (Smilodon, Homotherium), an extinct felid subfamily with hypertrophied upper canines, distinct from all living felids, appearing ~12-14 Ma and vanishing at the end Pleistocene.
Machairodus
Machairodus is an extinct genus of large saber-toothed cats (Machairodontinae) named by Kaup in 1833, living 11.5-9 million years ago across Eurasia, Africa, and North America; lion-sized, scimitar-toothed, best known from M. aphanistus at Batallones, Spain.
Machaki
Machaki is an American dubstep and bass producer from Tampa, Florida, active since 2023, who has released music on Monstercat, Subsidia, and Gud Vibrations and performed at Lost Lands.
Machakos
Machakos: town and county capital in south-central Kenya, founded 1887 as the first inland British East Africa Company administrative post; lost colonial capital status to Nairobi in 1899; Akamba heartland, semi-arid, sixth-largest county economy.
Machala
Machala, Ecuador: capital of El Oro province and canton since 25 June 1824 (Gran Colombia). Known as the Banana Capital of the World; exports bananas via Puerto Bolívar; 561,251 canton residents.
Machante Maalakha
Machante Maalakha (മച്ചാന്റെ മാലാഖ), also spelled Machante Malakha, is a 2025 Malayalam comedy-drama directed by Boban Samuel, starring Soubin Shahir as a KSRTC bus conductor married to Namitha Pramod's critical wife; released 27 February 2025, it flopped at the box office and drew largely negative reviews.
Machar Oil and Gas Field
Machar is an oil field in the UK Central North Sea, 150 miles northeast of Aberdeen, discovered in 1972 and developed by BP within the Eastern Trough Area Project.
Machas With Attitude
Machas With Attitude (MWA) was a pioneering Indian hip hop trio formed in 2008, known for taking desi rap to Bollywood and creating the Indian rap cypher.
Machaut (Mercurian crater)
Machaut is a 106-km-wide impact crater on Mercury near the equator at 82.1°W, named for the French poet-composer Guillaume de Machaut (approved 1976); MESSENGER images show a lava-flooded floor with shallow ridges.
Machbarot le-Sifrut
Machbarot le-Sifrut (מחברות לספרות, "Notebooks for Literature") is a Hebrew literary journal founded in Tel Aviv in 1940 under Israel Zamora, and the publishing house that grew from it.
Machel Montano
Machel Montano, also known as Machel Montano HD, is a Trinidadian soca singer and bandleader born in 1974 who holds a record 12 Road March titles.
Machemba
Machemba (Machemba bin Mshame al Masaninga) was a Yao trader and ruler who dominated the southern Tanzanian hinterland from the 1870s and resisted German rule.
Macheng
Macheng (麻城市) is a county-level city in Huanggang, northeastern Hubei, at the Hubei-Henan-Anhui junction in the Dabie Mountains; founded 598 AD, city 1986; known for Guifengshan's 100,000-mu ancient azaleas (5A since 2024), Red Army heritage with 49 generals, and Huguang migration roots.
Macherla Niyojakavargam
Macherla Niyojakavargam (మాచర్ల నియోజకవర్గం) is a 2022 Telugu action drama, M.S. Rajashekhar Reddy's debut, starring Nithiin as an IAS officer fighting politician Rajappa in Macherla, Guntur; released 12 August 2022, later on ZEE5, and poorly reviewed.
Machete
A machete, sometimes spelled matchet, is a large knife with a wide blade used to cut vegetation and, in parts of Latin America and Africa, as a weapon.
Machete (2010 film)
Machete, also known as the Machete movie, is a 2010 American action film starring Danny Trejo as Machete Cortez, a former Mexican Federale double-crossed in a plot to assassinate a US senator.
Machete (character)
Machete (Machete Cortez) is a fictional ex-Mexican Federale played by Danny Trejo in Robert Rodriguez's films: uncle in Spy Kids (2001), fake Grindhouse trailer (2007), Machete (2010), Machete Kills (2013).
Machete Kills
Machete Kills is a 2013 American action comedy directed by Robert Rodriguez, in which Danny Trejo's Machete is sent by the US President to stop a nuclear war.
Machete Music
Machete Music is a Latin urban and reggaeton record label owned by Universal Music Group, launched in 2005 and based in Los Angeles, with artists including Daddy Yankee and Don Omar.
machi bugyō
The machi bugyō (町奉行) was the Tokugawa shogunate office administering Edo's townspeople's districts, combining the functions of mayor, judge, police chief, and prosecutor, and abolished at the Meiji Restoration.