61,984 articles
Masudaya
Masudaya (増田屋) is a Japanese toy company in Tokyo founded in 1724, known for the 1955 Radicon Bus and the Gang of Five tin robots.
MAT-49
The MAT-49 (Pistolet Mitrailleur de 9 mm Modèle 1949) is a French 9mm Parabellum submachine gun, the standard weapon of French forces from 1949 to 1979.
mat2vec
mat2vec is a set of 200-dimensional Word2vec embeddings trained on about 3.3 million materials science abstracts by Lawrence Berkeley National Laboratory researchers and published in Nature in 2019.
Mata v. Avianca ChatGPT fake citations
Mata v. Avianca is a 2023 federal sanctions decision in which two New York lawyers were fined $5,000 for filing a brief citing six court decisions invented by ChatGPT.
MATADOR
MATADOR (Man-portable Anti-Tank, Anti-DOoR), marketed as the RGW 90, is a 90 mm disposable anti-armor weapon developed by Singapore with German firm Dynamit Nobel Defence since 2000.
Mataripe Refinery
The Mataripe Refinery (Refinaria de Mataripe), formerly the Landulpho Alves Refinery, is an oil refinery in Bahia, Brazil, opened in 1950 and today the country's second largest.
MatBench
MatBench is a benchmark suite of 13 curated machine learning tasks for predicting properties of inorganic bulk materials, introduced in 2020 by researchers in the Materials Project ecosystem.
Matbench Discovery
Matbench Discovery is a benchmark and interactive leaderboard for evaluating machine learning models that predict the thermodynamic stability of inorganic crystals, simulating high-throughput discovery campaigns.
MatBERT/MaterialsBERT
MatBERT/MaterialsBERT are BERT language models pre-trained or fine-tuned on materials science text, improving over general models like BERT and SciBERT by 1% to 12% on materials named entity recognition.
Match
A match is a small stick with a combustible chemical head that ignites by friction, giving a portable, single-use flame; invented by John Walker in 1826.
Match Factory!
Match Factory! is a free-to-play 3D tile-matching puzzle game for iOS and Android by Turkish studio Peak Games, published under Zynga, released worldwide in 2023 and a leading title in the 3D match genre.
Match Group
Match Group, Inc. is an American internet company headquartered in Dallas, Texas, whose portfolio of online dating brands includes Tinder, Hinge, Match, OkCupid, and Plenty of Fish.
Match trigger
A match trigger is a rifle or pistol trigger built to tighter tolerances than a standard factory trigger, giving a lighter, more repeatable release, often as a two-stage design.
Matchbox (brand)
Matchbox is a brand of realistic 1:64-scale die-cast toy vehicles created by England's Lesney Products in 1953 and owned by Mattel since 1997, selling millions of cars yearly.
Matched filter
A matched filter is a linear filter that maximizes the signal-to-noise ratio at one instant when a known signal is buried in noise, central to radar and sonar.
Matched filter multiuser detector
A matched filter multiuser detector is the conventional receiver for DS-CDMA, using a bank of matched filters that detect each user independently and treat interference as noise.
Matched filtering
Matched filtering is a signal processing method that detects a known signal pattern in noisy data by correlating it with a template, giving the highest signal-to-noise ratio of any linear filter.
Matched filtering precoding
Matched filtering precoding, also known as maximum-ratio transmission (MRT) or conjugate beamforming, is a low-complexity linear precoding technique that maximizes array gain in multiuser and massive MIMO downlinks.
Matching pursuit
Matching pursuit is a greedy sparse approximation algorithm, introduced by Mallat and Zhang in 1993, that decomposes a signal into waveforms chosen from a redundant dictionary.
Matchlock
The matchlock is a firearm ignition mechanism using a slow-burning cord lowered into a priming pan, the first mechanical gun lock, appearing in Europe in the mid-15th century.
Mate Rimac
Mate Rimac, born 1988 in Livno, Bosnia and Herzegovina, is a Croatian entrepreneur who started Rimac Automobili in a garage in 2009 and now leads Bugatti Rimac as chief executive.
MATE ROV Competition
The MATE ROV Competition is an annual underwater robotics contest founded in 2001 in Monterey, California, where K-12 and university students build and pilot remotely operated vehicles.
Mateba Autorevolver
The Mateba Autorevolver, formally the Mateba Model 6 Unica, is an Italian recoil-operated semi-automatic revolver by Emilio Ghisoni, made in Pavia from 1997 to 2005.
MateBook Fold
The MateBook Fold is a Huawei foldable computer announced in May 2025 that opens from 13 inches into a single uninterrupted 18-inch OLED display running HarmonyOS on Huawei's own Kirin chip.
Matei Zaharia
Matei Zaharia, Romanian-Canadian computer scientist, creator of Apache Spark (started 2009), cofounder and CTO of Databricks, and UC Berkeley EECS associate professor; RDD paper author, 2014 ACM Doctoral Dissertation Award winner, and recipient of the 2025 ACM Prize in Computing (announced April 2026).
Materfer
Materfer is an Argentine manufacturer of railway rolling stock founded by Fiat in 1958 in Ferreyra, Córdoba, known for railcars, subway cars, and the electric trains it exported to Chile.
Material
A material is a substance, most often a solid, intended for certain applications. Its structure, set by processing, controls its properties, the organizing idea of materials science and engineering.
Material Design
Material Design, originally called Quantum Paper, is Google's open-source design system providing guidelines, components, and tools for user interfaces across Android, the web, and Flutter, introduced in 2014.
Material flow analysis
Material flow analysis (MFA) is a systematic assessment of material flows and stocks within a system defined in space and time, used in industrial ecology and waste management.
Material point method
The material point method (MPM) is a hybrid Eulerian–Lagrangian numerical technique introduced by Sulsky, Chen, and Schreyer in 1994, used to simulate large deformation of materials like snow, sand, and fluids, including Disney's Frozen.