All articles starting with M

Magnetar giant flare

A magnetar giant flare is the most energetic type of burst from a magnetar, releasing up to 10⁴⁷ erg in under a second, followed by a fading, pulsating tail.

Magnetar-powered supernova

A magnetar-powered supernova is a stellar explosion whose luminosity is boosted by a newborn, rapidly spinning magnetar, the leading model for superluminous supernovae like SN 2011kl.

"Magnetic" is the 2024 debut single of K-pop girl group ILLIT (아일릿), title track of SUPER REAL ME on Belift Lab; a Pluggnb-house hybrid that reached No. 91 on the Billboard Hot 100 and No. 80 in the UK, firsts for a K-pop debut song.

Magnetic (The Bausa song)

"Magnetic" is a 2026 dance-pop single by the Norwegian trio The Bausa, released 27 February 2026 on Columbia/B1 Recordings with "Addicted To Your Love". Written with Coucheron, it hit #3 in Norway, #2 in Flanders, #7 in the Netherlands, and led Dutch radio airplay for three months.

Magnetic anisotropy

Magnetic anisotropy is the dependence of a material's magnetic properties on the direction measured, giving the magnetization energetically favored easy directions and controlling coercivity and remanence.

Magnetic anomaly detection

Magnetic anomaly detection (MAD) analyzes measured local magnetic fields to detect weak magnetic sources such as buried ferromagnetic material, applied in mineral exploration, unexploded ordnance clearance, archaeology, and military submarine detection.

Magnetic artificial cilia

Magnetic artificial cilia are magnetically actuated polymer hairs that mimic the beating of biological cilia to pump, mix, and transport fluids in microchannels, demonstrated from 2009 using iron nanoparticles in PDMS.

Magnetic bead separation

Magnetic bead separation is a bench biology technique that uses superparamagnetic particles coated with binding agents to isolate DNA, RNA, proteins, or cells from solution by applying a magnetic field.

Magnetic bearing

A magnetic bearing supports a rotating shaft with magnetic forces rather than contact, holding the rotor levitated; active designs use sensors, electromagnets, and feedback control.

Magnetic bimerons

A magnetic bimeron is a topological spin texture, a bound pair of two merons and the in-plane magnetized counterpart of a skyrmion, proposed for spintronic racetrack devices.

Magnetic bottle

A magnetic bottle is a plasma confinement device that traps charged particles between regions of stronger magnetic field, a major scheme proposed for magnetic confinement fusion and the physics behind planetary radiation belts.

Magnetic braking (astronomy)

Magnetic braking in astronomy is the removal of angular momentum from a star or collapsing cloud by a magnetic field, explaining why solar-type stars spin down over time.

Magnetic circuit

A magnetic circuit is a closed path along which magnetic flux is guided, analyzed by analogy with an electric circuit, where magnetomotive force drives flux through reluctance.

Magnetic circular dichroism

Magnetic circular dichroism (MCD) is a spectroscopic technique that measures the differential absorption of left and right circularly polarized light by a sample in a magnetic field, resolving complex absorption spectra.

Magnetic circular dichroism spectroscopy

Magnetic circular dichroism (MCD) spectroscopy measures the difference in absorption of left- and right-circularly polarized light in a magnetic field, probing materials' electronic and magnetic properties.

Magnetic cloud

A magnetic cloud is a transient solar-wind structure produced by a coronal mass ejection, marked by strong fields, smooth field-direction rotation, and low proton temperature.

Magnetic compression anastomosis

Magnetic compression anastomosis is a sutureless technique in which paired magnets compress apposed ends of bowel, bile duct, or blood vessel until a channel heals open.

Magnetic confinement fusion

Magnetic confinement fusion, also called magnetic fusion energy, is an approach to fusion energy that uses strong magnetic fields to hold hot plasma away from material walls.

Magnetic core

A magnetic core is a piece of ferromagnetic material such as iron or ferrite placed inside a coil to guide magnetic flux in transformers, inductors, and electromagnets.

Magnetic coupling

A magnetic coupling is a device that transmits torque between shafts through a magnetic field alone, letting sealless pumps contain fluids hermetically with no leaks.

Magnetic damping

Magnetic damping is the suppression of motion in an electrically conducting fluid, typically liquid metal, by a static magnetic field, best known as the electromagnetic brake in continuous steel casting.

Magnetic declination

Magnetic declination, also called magnetic variation, is the angle between magnetic north, where a compass points, and true north; it changes with location and time, and compass bearings must be corrected by it.

Magnetic dip

Magnetic dip, or magnetic inclination, is the angle Earth's magnetic field makes with the horizontal, from 0° at the magnetic equator to ±90° at the dip poles.

Magnetic dipole

A magnetic dipole is a localized source of magnetic field characterized by a single vector, the magnetic dipole moment, with a current loop as the standard example.

Magnetic dipole–dipole interaction

The magnetic dipole–dipole interaction, known as dipolar coupling, is the direct interaction between two magnetic moments, falling off as 1/r³ and producing resonance line splitting in NMR and EPR.

Magnetic Dirac semimetal

A magnetic Dirac semimetal is a magnetic crystal whose fourfold-degenerate Dirac points are protected by combined crystal and time-reversal symmetry rather than time reversal alone, with candidates including CuMnAs and EuCd2As2.

Magnetic domain

A magnetic domain, also called a Weiss domain, is a region inside a ferromagnetic or ferrimagnetic material within which the magnetization points in a single direction.

Magnetic droplet soliton

A magnetic droplet soliton is a localized dynamical magnetic texture in thin ferromagnetic films with perpendicular anisotropy, first observed in 2013 and studied as a current-controlled microwave oscillator.

Magnetic drug targeting

Magnetic drug targeting (MDT) is a drug delivery strategy in which drugs bound to magnetic carriers, typically iron oxide nanoparticles, are concentrated at a disease site by an external magnetic field.