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Physical world and mathematics

42,772 articles

Miller index

A Miller index is a set of three integers (hkl) identifying the orientation of a plane, or family of parallel planes, in a crystal lattice, introduced in 1839.

Miller–Rabin primality test

The Miller–Rabin primality test is a randomized algorithm deciding whether an odd integer is prime; introduced by Gary Miller in 1976 and made unconditional by Michael Rabin in 1980.

Miller–Urey experiment

The Miller–Urey experiment, also called the Miller experiment, was a 1952 University of Chicago study in which Stanley Miller, Harold Urey's graduate student, sparked simple gases to form amino acids.

Millimetre

The millimeter (mm) is an SI unit of length equal to one thousandth of a meter, defined by the prefix milli adopted with the SI in 1960.

Milliradian

A milliradian (mrad, often written mil) is one thousandth of a radian, the SI unit of angle, subtending about 1 meter at 1 kilometer and used in optics and artillery.

Millisecond

A millisecond (ms) is a unit of time equal to one thousandth of a second, the scale of human reaction times, ECG intervals, camera shutters, and network round trips.

Millisecond magnetar central engine

A millisecond magnetar central engine is a proposed power source for gamma-ray bursts and superluminous supernovae, in which a newborn, rapidly spinning neutron star taps its rotational energy.

Millisecond pulsar

A millisecond pulsar, also called a recycled pulsar, is a neutron star spinning hundreds of times per second, spun up by accretion from a binary companion.

Millisecond pulsar mass measurements

Millisecond pulsar mass measurements determine the masses of rapidly rotating neutron stars, made mainly by precision radio timing of binary systems and used to constrain the equations of state of ultra-dense matter.

Millstone Grit

Millstone Grit, now formally the Millstone Grit Group, is a Namurian-age succession of coarse-grained sandstone, siltstone, and mudstone in Great Britain, named for gritstones quarried as millstones.

Milnacipran

Milnacipran, sold as Savella in the United States and Toledomin in Japan, is an SNRI antidepressant and fibromyalgia treatment, first approved in Japan in 1999.

Milnor K-theory

Milnor K-theory is a graded ring K*M(F) attached to a field F, introduced by John Milnor in 1970, with its degree-two part recovering the classical group K2(F).

Miloš V. Novotný

Milos V. Novotny, born 1942 in Brno, is a Czech-born analytical chemist at Indiana University known for capillary separation science, glycoscience, and identifying the first mammalian pheromones.

Milstein method

The Milstein method, also known as the Milstein scheme, is a numerical scheme for approximating solutions of stochastic differential equations, proposed by G. N. Milstein in 1974.

Miltefosine

Miltefosine, also known as hexadecylphosphocholine and sold as Impavido, is an oral antiprotozoal drug for leishmaniasis, first registered in India in 2002 and approved in the United States in 2014.

Milton E. Terry

Milton E. Terry was an American statistician who earned his 1951 doctorate from the University of North Carolina and co-authored the highly cited Bradley–Terry paired-comparisons method.

Milton Harris (chemist)

Milton Harris (1906–1991) was an American chemist who developed shrink-proof wool and wrinkle-resistant cotton, founded the Harris Research Laboratory, and won the 1980 Priestley Medal.

Milton Nunn Bramlette

Milton Nunn Bramlette (1896–1977) was an American geologist and professor at the Scripps Institution of Oceanography, known for pioneering the use of calcareous nannofossils to date ocean sediments.

Milton S. Plesset

Milton S. Plesset (1908–1991) was an American applied physicist, professor at Caltech, whose name attaches to the Rayleigh–Plesset equation for cavitation bubble growth and collapse.

Milutin Milanković

Milutin Milanković (Милутин Миланковић, 1879 to 1958) was a Serbian mathematician and astronomer at the University of Belgrade known for his astronomical theory of climate change explaining ice ages.

Mimosine

Mimosine is a toxic non-protein amino acid from the leucaena tree and Mimosa pudica, causing hair loss and goitre in livestock and used to synchronize cultured cells.

Miṅ Gu

Min Gu (顾敏) is a photonics researcher known for nanoscale optical data storage and holography, and Executive Chancellor at the University of Shanghai for Science and Technology since 2019.

Min Min light

The Min Min light, or Min-min, is an unexplained floating, often colored light in the Australian outback that follows travelers, reported chiefly along the Winton–Boulia road in western Queensland.

Min S. Yun

Min S. Yun is an American radio astronomer and professor at the University of Massachusetts Amherst, known for his 1994 hydrogen map of the M81 galaxy group.

Min Sang Kwon

Min Sang Kwon (권민상) is a South Korean polymer and organic materials chemist, an associate professor at Seoul National University known for metal-free organic photocatalysts for visible-light-driven atom transfer radical polymerization.

Min-entropy

Min-entropy is an entropy measure defined as the negative base-2 logarithm of the largest probability in a distribution, used by NIST to validate random bit generators.

Min-max theorem

The min-max theorem, usually called the Courant–Fischer theorem, is a linear algebra result stating that every eigenvalue of a Hermitian matrix solves a min-max problem over subspaces using the Rayleigh quotient.

Mindlin contact theory

Mindlin contact theory, due to Raymond D. Mindlin in 1949, describes how two elastic bodies pressed together respond to a small tangential force: slip occurs at the contact edge while the inner core sticks.

Miner's rule

Miner's rule, also called the Palmgren–Miner or linear damage rule, estimates fatigue life under variable-amplitude loading: failure is predicted when consumed life fractions sum to one.

Mineral

A mineral is a naturally occurring, normally crystalline solid element or compound formed by geological processes, and the building block of rocks; over 6,100 species are recognized.