All articles starting with M
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Metalocalypse
Metalocalypse is Brendon Small and Tommy Blacha's Adult Swim animated series (2006-2013) about Dethklok, the world's biggest death metal band, which spawned real Billboard-charting Dethalbums and concluded with the 2023 film Army of the Doomstar.
Metalorganic vapor phase epitaxy
Metalorganic vapor phase epitaxy (MOVPE), also known as MOCVD, is a chemical vapor deposition technique that grows single-crystal semiconductor layers, the basis of LEDs, lasers, and solar cells.
Metalsa
Metalsa is a Mexican manufacturer of structural automotive components, specializing in chassis structures for light and commercial vehicles, headquartered in Monterrey and owned by Grupo Proeza.
Metalstorm: The Destruction of Jared-Syn
Metalstorm: The Destruction of Jared-Syn is a 1983 Charles Band 3-D science fiction film, also called Metalstorm, starring Jeffrey Byron as ranger Dogen on desert planet Lemuria, released by Universal on 19 August 1983.
Metalworking
Metalworking is the set of processes that shape metal into useful objects, spanning casting of molten metal, forming under pressure, cutting, joining, and heat treatment, with roots in ancient history.
Metam
Metam is a pesticide active substance, sold mainly as its sodium salt metam sodium, used as a broad-spectrum preplant soil fumigant against weeds, fungi, nematodes, and soil insects, and considered a viable alternative to methyl bromide.
Metamagnetic transition
A metamagnetic transition is a field-driven first-order magnetic phase transition in which a material jumps discontinuously from an antiferromagnetic or paramagnetic state to a strongly magnetized state.
MetaMask
MetaMask is a self-custodial cryptocurrency wallet developed by Consensys, launched as a browser extension in 2016 and used to hold tokens and connect to dapps on Ethereum and other blockchains.
Metamaterial
A metamaterial is an engineered composite whose properties come from subwavelength structure rather than chemical composition, allowing effects like negative refraction not found in natural materials.
Metamaterial absorber
A metamaterial absorber is an artificial electromagnetic structure that absorbs waves at near unity while much thinner than the wavelength, introduced by Landy in 2008.
Metamaterial cloaking
Metamaterial cloaking is the use of artificially structured metamaterials to render objects undetectable to waves by steering fields around them, first demonstrated with a microwave cloak in 2006 and since extended to sound and heat.
Metamaterial fiber
A metamaterial fiber is an optical fiber with engineered subwavelength inclusions that give it optical properties not found in natural materials, such as artificial anisotropy.
Metamaterial lens
A metamaterial lens is a lens made from an engineered periodic composite with a designed refractive index, covering negative-index slab superlenses that image beyond the diffraction limit and flat metalenses built from metasurfaces.
Metamaterial waveguides for slow light (plasmonic)
Plasmonic metamaterial waveguides for slow light are artificial metal-dielectric structures that slow guided surface-plasmon polaritons up to roughly 100-fold, enhancing light-matter interactions while metal absorption limits practical performance.
Metamifop
Metamifop (CAS 256412-89-2) is an R-configured aryloxyphenoxypropionate ACCase-inhibiting post-emergence herbicide developed by Dongbu Hannong, used mainly against barnyardgrass in rice; GST-mediated resistance and aquatic toxicity are documented.
Metamizole
Metamizole (dipyrone, Novalgin, Nolotil) is a pyrazolone analgesic, antipyretic, and spasmolytic marketed since 1922, used for moderate to severe pain and fever, but restricted or withdrawn in the USA, Australia, and others over dose-independent agranulocytosis risk.
Metamodeling (simulation)
Metamodeling builds a simplified mathematical surrogate that approximates the input–output behavior of an expensive computer simulation, so optimization, sensitivity analysis, and uncertainty quantification can run on the surrogate instead of the simulator.
Metamodernism
Metamodernism, also called the metamodern, is a cultural theory coined by Mas'ud Zavarzadeh in 1975 and popularized by Vermeulen and van den Akker's 2010 essay, describing contemporary culture as oscillating between modern enthusiasm and postmodern irony.
Metamonad
Metamonada (metamonads), anaerobic flagellate eukaryotes of Excavata with three lineages, Fornicata, Parabasalia, Preaxostyla; lack canonical mitochondria, carrying hydrogenosomes or mitosomes; include Giardia and Trichomonas.
Metamorphic code
Metamorphic code is program code that rewrites itself between copies while retaining its core functionality, used in some mission-critical software but best known for helping malware evade signature-based antivirus detection.
Metamorphic core complex
A metamorphic core complex is a domal geological structure where deep metamorphic and granitic rocks are brought to the surface by extension on a low-angle detachment fault.
Metamorphic facies
A metamorphic facies is a set of mineral assemblages that characterizes a range of pressure and temperature conditions during metamorphism, a concept introduced by Finnish geologist Pentti Eskola in 1915.
Metamorphic grade
Metamorphic grade is the relative intensity of metamorphism recorded in a rock, used as a qualitative proxy for metamorphic temperature; index minerals such as garnet and staurolite mark increasing grades.
Metamorphic mechanism
A metamorphic mechanism is a mechanism whose structure, number of links, and degrees of freedom change during operation, proposed by Jian S. Dai and J. Rees Jones in 1998.
Metamorphic rock
Metamorphic rock, or metamorphosed rock, forms when heat, pressure, or hot fluids transform pre-existing rock in the solid state deep in the crust, producing rocks such as marble, slate, schist, and gneiss.
Metamorphic testing
Metamorphic testing is a software testing technique that checks whether outputs of multiple related executions satisfy metamorphic relations, letting testers check programs that lack a test oracle.
Metamorphism
Metamorphism is the geological process that changes pre-existing rocks in mineralogy and texture through heat, pressure, and fluids, without melting them, deep in the Earth's crust.
Metamorpho
Metamorpho (Rex Mason), the Element Man, is a DC Comics superhero created by Bob Haney and Ramona Fradon, debuting in The Brave and the Bold #57 (1964-65); he transforms his body into chemical elements and has joined the Outsiders, Justice League Europe, and the Terrifics.
Metamorphoses
Ovid's Metamorphoses, a 15-book Latin epic of about 12,000 hexameter lines, retells some 250 transformation myths from Chaos to Augustus and became the 'Bible for artists' of Western painting and sculpture.
Metamorphosis
Metamorphosis: the abrupt postembryonic transformation from larva to adult, as in caterpillar-to-butterfly and tadpole-to-frog. Controlled in insects by ecdysone and juvenile hormone; over 80% of insect species undergo complete metamorphosis.