42,772 articles
Mothering Sunday
Mothering Sunday, also known as Simnel Sunday, is the fourth Sunday of Lent in the United Kingdom and Anglican Communion, now coinciding with British Mother's Day.
Moti Heiblum
Moti Heiblum is an Israeli experimental physicist at the Weizmann Institute of Science, known for shot-noise measurements of fractional quasiparticle charge in the quantum Hall regime.
Motility
Motility is the capacity of an organism or cell to move independently using metabolic energy, from bacteria swimming with rotating flagella to cells crawling on actin and animals walking or flying.
Motility-induced phase separation
Motility-induced phase separation, or MIPS, is a nonequilibrium phenomenon in which self-propelled particles with purely repulsive interactions separate into dense and dilute phases without any attraction.
Motion
Motion is the change in position of an object over time, described by kinematics and requiring a reference frame and quantities such as position, velocity, and acceleration.
Motion capture
Motion capture, also known as mocap or motion capturing, records human or object movement and converts it into digital data, usually three-dimensional body positions and joint angles over time.
Motion detector
A motion detector, also called a motion sensor, is a sensor device that detects movement of people or objects, usually to trigger intruder alarms or switch lighting on and off.
Motion estimation
Motion estimation is the computer vision task of computing the displacement of image content between video frames, producing motion vectors or dense optical flow fields.
Motional narrowing
Motional narrowing is a spectroscopic effect in which a resonance line narrows as the rate of environmental fluctuation increases, seen in nuclear magnetic resonance, quantum dots, and superconducting resonators.
Motional Stark effect
The motional Stark effect is a spectro-polarimetric diagnostic that measures the magnetic field pitch angle inside tokamak plasmas from light emitted by fast neutral beam atoms moving through the field.
Motive (algebraic geometry)
In algebraic geometry, a motive is a conjectural elementary building block of algebraic varieties, proposed by Alexander Grothendieck in 1964 so that all cohomology theories factor through the category of motives.
Motivic cohomology
Motivic cohomology is a cohomology theory for algebraic varieties, with bidegrees H^{p,q}, recovering Chow groups, the Picard group, and Milnor K-theory; Voevodsky realized it in the late 1990s.
Motohide Tamura
Motohide Tamura (田村 元秀), born 1959 in Nara Prefecture, is a Japanese astronomer who led the Subaru SEEDS direct-imaging exoplanet survey and the 1998 brown dwarf study in Science.
Motomu Kanai
Motomu Kanai (金井 求), born 1967 in Tokyo, is a Japanese organic chemist and professor at the University of Tokyo working in asymmetric catalysis and what he calls catalysis medicine.
Motonari Uesugi
Motonari Uesugi (上杉 志成) is a Japanese chemical biologist who designs small molecules that modulate human cells, and has been a professor at Kyoto University since 2005.
Motor constants
Motor constants are proportionality factors linking a motor's electrical quantities to mechanical ones, such as the torque constant relating current to torque; fixed by design, they shift with temperature and carry manufacturing tolerances.
Mott insulator
A Mott insulator is a material that should conduct by band theory, having a partially filled band, but insulates because strong electron-electron repulsion localizes electrons on atoms.
Mott threshold switching
Mott threshold switching is a volatile effect in which a Mott insulator abruptly turns conducting under current or voltage and reverts when the drive is removed.
Mott transition
The Mott transition, also called the Mott–Hubbard transition, is a metal–insulator transition in which strong electron–electron interactions turn a material band theory predicts should conduct into an insulator.
Mound Laboratory
Mound Laboratory was a nuclear research, development, and production facility in Miamisburg, Ohio, that operated from 1948 to 2003, continuing the Manhattan Project's Dayton Project work on polonium initiators.
Moungi G. Bawendi
Moungi Bawendi, born 1961, is an American chemist at MIT who shared the 2023 Nobel Prize in Chemistry for the discovery and synthesis of quantum dots.
Mount Batur
Mount Batur (Gunung Batur) is an active stratovolcano in northeastern Bali, Indonesia, rising 1,717 m above Lake Batur within a double caldera and a UNESCO Global Geopark.
Mount Bromo
Mount Bromo (Gunung Bromo) is an active volcanic cone, 2,329 m high, standing in the Tengger caldera in East Java, Indonesia, with more than 50 recorded eruptions since 1804.
Mount Cattlin
Mount Cattlin, also written Mt Cattlin, is an open pit lithium mine near Ravensthorpe, Western Australia, that produced spodumene concentrate from 2010 until care and maintenance in 2025.
Mount Damavand (دماوند)
Mount Damavand (دماوند), also spelled Demavend, is a dormant stratovolcano in the Alborz Mountains of northern Iran, the highest peak in the Middle East at 5,610 m.
Mount Holland
Mount Holland is an integrated lithium project in Western Australia's Wheatbelt, owned equally by Wesfarmers and SQM, mining the Earl Grey spodumene deposit and refining lithium hydroxide near Perth.
Mount Merapi
Mount Merapi (Gunung Merapi) is an active stratovolcano in Central Java, Indonesia, rising to 2,910 m north of Yogyakarta, with nearly 80 recorded eruptions since 1672.
Mount Nyiragongo
Mount Nyiragongo is an active stratovolcano in the Democratic Republic of the Congo, near Goma, known for its persistent lava lake and deadly eruptions in 1977, 2002, and 2021.
Mount of the Holy Cross
Mount of the Holy Cross is a 14,005-foot peak in Colorado's Sawatch Range, named for a cross of snow on its face, first climbed and photographed in 1873.
Mount Okmok
Mount Okmok is an active shield volcano occupying northeastern Umnak Island in Alaska's Aleutian Islands, one of the arc's most active, with major eruptions in 43 BCE, 1997, and 2008.