Scientific News
Articles across mathematics, physics, chemistry, biology, and astronomy.
Science
Gas constant
The molar gas constant (also known as the gas constant, universal gas constant, or ideal gas constant) is denoted by the symbol R or R. It is the molar equivalent to the Boltzmann constant, expressed in units of energy per temperature increment per amount of substance, rather than energy per temperature increment per particle. The constant is also a combination of the constants from Boyle's law, C
8/24/2026
Science
Gauss's law
In electromagnetism, Gauss's law, also known as Gauss's flux theorem or sometimes Gauss's theorem, is one of Maxwell's equations. It is an application of the divergence theorem, and it relates the distribution of electric charge to the resulting electric field.
8/24/2026
Science
Gaussian year
A Gaussian year is defined as 365.2563835 days. It was adopted by Carl Friedrich Gauss as the length of the sidereal year in his studies of the dynamics of the Solar System. A slightly different value is now accepted as the length of the sidereal year, and the value accepted by Gauss is given a special name. A particle of negligible mass, that orbits a body of 1 solar mass in this period, has a me
8/24/2026
Science
Gauss gun
The Gauss gun (often called a Gauss rifle or Gauss cannon) is a device that uses electromagnets and the physics of the Newton's cradle to accelerate a projectile. Gauss guns are distinct from and predate coil guns, although many works of science fiction (and occasionally educators) have confused the two. Typical use of the Gauss rifle is to demonstrate the effects of energy and momentum transfer,
8/24/2026
Science
Gauge boson
In particle physics, a gauge boson is a bosonic elementary particle that acts as the force carrier for elementary fermions. Elementary particles whose interactions are described by a gauge theory interact with each other by the exchange of gauge bosons, usually as virtual particles. Photons, W and Z bosons, and gluons are gauge bosons. All known gauge bosons have a spin of 1 and therefore are vect
8/24/2026
Science
Gauge fixing
In the physics of gauge theories, gauge fixing (also called choosing a gauge) denotes a mathematical procedure for coping with redundant degrees of freedom in field variables. By definition, a gauge theory represents each physically distinct configuration of the system as an equivalence class of detailed local field configurations. Any two detailed configurations in the same equivalence class are
8/24/2026
Science
Gas torus
A gas torus is a toroidal cloud of gas or plasma that encircles a planet or moon. In the Solar System, gas tori tend to be produced by the interaction of a satellite's atmosphere with the magnetic field of a planet. The most famous example of this is the Io plasma torus, which is produced by the ionization of roughly 1 ton per second of oxygen and sulfur from the tenuous atmosphere of Jupiter's vo
8/24/2026
Science
Gateway Setup Assistant
Gateway Setup Assistant is a tool in Apple Computer's Mac OS X Server versions 10.4 and higher that guides users through setting up Mac OS X Server as an internet gateway. The Gateway Setup Assistant assumes two network interfaces and will automatically configure the DHCP, NAT, firewall, DNS, and VPN services.
8/24/2026
Science
Gary Grossman
Gary Grossman was the primary developer of ActionScript programming language. From 2014 to 2024, he worked with Robert Tatsumi (creators of Adobe Flash) at Zendesk. In his previous position as a principal scientist at Adobe Systems, Grossman was a key architect of the Flash Player, which was once the most popular multimedia player on the web. Gary contributed to six major releases of Flash in vari
8/24/2026
Science
Gaseous mediator
Gaseous mediators are chemicals that are produced in small amounts by some cells of the mammalian body and have a number of biological signalling functions. There are three so-far-identified gaseous mediator molecules: nitric oxide (NO), hydrogen sulfide (H2S), and carbon monoxide (CO).
8/24/2026
Science
Gauss's diary
Gauss's diary was a record of the mathematical discoveries of German mathematician Carl Friedrich Gauss from 1796 to 1814. It was rediscovered in 1897 and published by Klein (1903), and reprinted in volume X1 of his collected works and in (Gauss 2005). There is an English translation with commentary given by Gray (1984), reprinted in the second edition of (Dunnington 2004).
8/24/2026
Science
Gauss's Pythagorean right triangle proposal
Gauss's Pythagorean right triangle proposal is an idea attributed to Carl Friedrich Gauss for a method to signal extraterrestrial beings by constructing an immense right triangle and three squares on the surface of the Earth. The shapes would be a symbolic representation of the Pythagorean theorem, large enough to be seen from the Moon or Mars. Although credited in numerous sources as originating
8/24/2026
Science
Gauge vector–tensor gravity
Gauge vector–tensor gravity (GVT) is a relativistic generalization of Mordehai Milgrom's modified Newtonian dynamics (MOND) paradigm where gauge fields cause the MOND behavior. The former covariant realizations of MOND such as the Bekenstein's tensor–vector–scalar gravity and the Moffat's scalar–tensor–vector gravity attribute MONDian behavior to some scalar fields. GVT is the first example where
8/24/2026
Science
Gas–liquid contactor
A gas–liquid contactor is a particular chemical equipment used to realize the mass and heat transfer between a gas phase and a liquid phase. Gas–liquid contactors can be used in separation processes (e.g. distillation, absorption) or as gas–liquid reactors or to achieve both purposes within the same device (e.g. reactive distillation).
8/24/2026
Science
Gaseous signaling molecules
Gaseous signaling molecules are gaseous molecules that are either synthesized internally (endogenously) in the organism, tissue or cell or are received by the organism, tissue or cell from outside (say, from the atmosphere or hydrosphere, as in the case of oxygen) and that are used to transmit chemical signals which induce certain physiological or biochemical changes in the organism, tissue or cel
8/24/2026
Science
Gauss notation
Gauss notation (also known as a Gauss code or Gauss words) is a notation for mathematical knots. It is created by enumerating and classifying the crossings of an embedding of the knot in a plane. It is named after the German mathematician Carl Friedrich Gauss (1777–1855). Gauss code represents a knot with a sequence of integers. However, rather than every crossing being represented by two differen
8/24/2026
Science
Garrod Lecture and Medal
The Garrod Lecture and Medal is an award presented by the British Society for Antimicrobial Chemotherapy. It was established in 1982 and named for L. P. Garrod. The medal is made of silver by the Birmingham Mint. The recipient of the award is considered by the society as having international authority in the field of antimicrobial chemotherapy. They are invited to deliver an accompanying lecture a
8/24/2026
Science
Gary Patti
Gary J. Patti is an American biochemist known for his research in metabolism and for using mass spectrometry to characterize biological processes. He is the Michael and Tana Powell Professor at Washington University in St. Louis. He is co-founder and Chief Scientific Officer of Panome Bio and an Associate Editor for Clinical & Translational Metabolism.
8/24/2026
Science
Gauss congruence
In mathematics, Gauss congruence is a property held by certain sequences of integers, including the Lucas numbers and the divisor sum sequence. Sequences satisfying this property are also known as Dold sequences, Fermat sequences, Newton sequences, and realizable sequences. The property is named after Carl Friedrich Gauss (1777–1855), although Gauss never defined the property explicitly. Sequences
8/24/2026
Science
Gator (facility)
Gator is a low-background germanium counting facility for high-sensitivity gamma-ray spectrometry at the Laboratori Nazionali del Gran Sasso in Italy. The Gator facility is primarily employed to quantify radioactivity levels for rare-event search experiments in astroparticle physics, such as for the XENON dark matter research project. In 2023, it was used to perform high-precision experimental sea
8/24/2026
Science
G protein-coupled receptor
G protein-coupled receptors (GPCRs), also known as seven-(pass)-transmembrane domain receptors, 7TM receptors, heptahelical receptors, serpentine receptors, and G protein-linked receptors (GPLR), form a large group of evolutionarily related proteins that are cell surface receptors that detect molecules outside the cell and activate cellular responses. They are coupled with G proteins. They pass th
8/24/2026
Science
GC-content
In molecular biology and genetics, GC-content (or G+C content or guanine-cytosine content) is the percentage of nitrogenous bases in a DNA or RNA molecule that are either guanine (G) or cytosine (C). This measure indicates the proportion of G and C bases out of an implied four total bases, also including adenine and thymine in DNA and adenine and uracil in RNA. GC-content may be given for a certai
8/24/2026
Science
G-factor (physics)
A g-factor (also called g value) is a dimensionless quantity that characterizes the magnetic moment and angular momentum of a whole atom, a particle, or a nucleus. It is the ratio of the magnetic moment (or, equivalently, the gyromagnetic ratio) of a particle to that expected of a classical particle of the same charge and angular momentum. In nuclear physics, the nuclear magneton replaces the clas
8/24/2026
Science
G. K. Gilbert Award
The G. K. Gilbert Award is presented annually by the Planetary Geology Division of the Geological Society of America for outstanding contributions to the solution of fundamental problems in planetary geology in the broadest sense, which includes geochemistry, mineralogy, petrology, geophysics, geologic mapping, and remote sensing. Such contributions may consist either of a single outstanding publ
8/24/2026
Science
GABA receptor antagonist
GABA receptor antagonists are drugs that inhibit the action of GABA. In general these drugs produce stimulant and convulsant effects, and are mainly used for counteracting overdoses of sedative drugs. Examples include bicuculline, securinine and metrazol, and the benzodiazepine GABAA receptor antagonist flumazenil. Other agents which may have GABAA receptor antagonism include the antibiotic cipro
8/24/2026
Science
GLOH
GLOH (Gradient Location and Orientation Histogram) is a robust image descriptor that can be used in computer vision tasks. It is a SIFT-like descriptor that considers more spatial regions for the histograms. An intermediate vector is computed from 17 location and 16 orientation bins, for a total of 272-dimensions. Principal components analysis (PCA) is then used to reduce the vector size to 128 (s
8/24/2026
Science
G. K. Warren Prize
The G. K. Warren Prize is awarded by the U.S. National Academy of Sciences "for noteworthy and distinguished accomplishment in fluviatile geology and closely related aspects of the geological sciences." Named in honor of Gouverneur Kemble Warren, it was first awarded in 1969 and has been awarded every four years since 1982.
8/24/2026
Science
Förster coupling
Förster coupling is the resonant energy transfer between excitons within adjacent QD's (quantum dots). The first studies of Forster were performed in the context of the sensitized luminescence of solids. Here, an excited sensitizer atom can transfer its excitation to a neighbouring acceptor atom, via an intermediate virtual photon. This same mechanism has also been shown to be responsible for exci
8/24/2026
Science
Future of Earth
The biological and geological future of Earth can be extrapolated based on the estimated effects of several long-term influences. These include the chemistry at Earth's surface, the cooling rate of the planet's interior, gravitational interactions with other objects in the Solar System, and a steady increase in the Sun's luminosity. An uncertain factor is the influence of human technology such as
8/24/2026
Science
Future of mathematics
The progression of both the nature of mathematics and individual mathematical problems into the future is a widely debated topic; many past predictions about modern mathematics have been misplaced or completely false, so there is reason to believe that many predictions today will follow a similar path. However, the subject still carries an important weight and has been written about by many notabl
8/24/2026
Science
GPU switching
GPU switching is a mechanism used on computers with multiple graphic controllers. This mechanism allows the user to either maximize the graphic performance or prolong battery life by switching between the graphic cards. It is mostly used on gaming laptops which usually have an integrated graphic device and a discrete video card.
8/24/2026
Science
G parity
In particle physics, G parity is a multiplicative quantum number that results from the generalization of C parity (charge conjugation) to multiplets of particles. It was introduced by Louis Michel in 1953 as isotopic parity, and later introduced as G parity by T.D. Lee and C.N. Yang in 1956.
8/24/2026
Science
GEOS-3
GEOS-3, or Geodynamics Experimental Ocean Satellite 3, or GEOS-C, was the third and final satellite as part of NASA's Geodetic Earth Orbiting Satellite/Geodynamics Experimental Ocean Satellite program (NGSP) to better understand and test satellite tracking systems. For GEOS 1 and GEOS 2, the acronym stands for Geodetic Earth Orbiting Satellite; this was changed for GEOS-3.
8/24/2026
Science
GRE Biology Test
The GRE subject test in biology was a standardized test in the United States created by the Educational Testing Service, and was designed to assess a candidate's potential for graduate or post-graduate study in the field of biology. The test was comprehensive and covered—in equal proportions—molecular biology, organismal biology, and ecology and evolution. ETS took the decision to discontinue the
8/24/2026
Science
Fungistatics
Fungistatics are anti-fungal agents that inhibit the growth of fungus (without killing the fungus). The term fungistatic may be used as both a noun and an adjective. Fungistatics have applications in agriculture, the food industry, the paint industry, and medicine.
8/24/2026
Science
GNC hypothesis
The GNC hypothesis or GNC-SNS primeval genetic code hypothesis refers to a hypothesis about the origin of genes. It suggests the universal genetic code originated not from a three-amino acid system, but from a four-amino acid system. It is this GNC code encoding [GADV]-proteins which is the most primitive genetic code. This hypothesis was first proposed by Kenji Ikehara at Nara Women's University
8/24/2026
Science
GMO conspiracy theories
GMO conspiracy theories are conspiracy theories related to the production and sale of genetically modified crops and genetically modified food (also referred to as genetically modified organisms or "GMOs"). These conspiracy theories include claims that agribusinesses, especially Monsanto, have suppressed data showing that GMOs cause harm, deliberately cause food shortages to promote the use of GM
8/24/2026
Science
Fusion of anyons
Anyon fusion is the process by which multiple anyons behave as one larger composite anyon. Anyon fusion is essential to understanding the physics of non-abelian anyons and how they can be used in quantum information.
8/24/2026
Science
Félix I
Félix I (officially "F-360-BD") was a Brazilian Army Technical School (today's Military Institute of Engineering) project led by Lieutenant Colonel Manoel dos Santos Lage which aimed, in 1959, to launch the Flamengo cat into space. But the project was canceled due to pressure from animal advocacy groups, and the launch never took place.
8/24/2026
Science
GRAVITY (Very Large Telescope)
GRAVITY is an instrument on the interferometer of the Very Large Telescope (VLTI). It either combines the light of the four Unit Telescopes (UT) or the smaller four Auxiliary Telescopes. The instrument works with adaptive optics and provides a resolution of 4 milliarcseconds (mas) and can measure the position of astronomical objects down to a few 10 microarcseconds (μas). VLTI GRAVITY has a collec
8/24/2026
Science
Galaxy formation and evolution
In cosmology, the study of galaxy formation and evolution is concerned with the processes that formed a heterogeneous universe from a homogeneous beginning, the formation of the first galaxies, the way galaxies change over time, and the processes that have generated the variety of structures observed in nearby galaxies. Galaxy formation is hypothesized to occur from structure formation theories, a
8/24/2026
Science
Galaxy
A galaxy is a physical system of stars, planetary systems, stellar remnants, substellar objects, interstellar gas, dust, and dark matter bound together by gravity. The word is derived from the Greek galaxias (γαλαξίας), meaning 'milky', a reference to the Milky Way galaxy that contains the Solar System. Galaxies, averaging an estimated 100 million stars, range in size from dwarfs with less than a
8/24/2026
Science
GRE Physics Test
The Graduate Record Examination (GRE) physics test is an examination administered by the Educational Testing Service (ETS). The test attempts to determine the extent of the examinees' understanding of fundamental principles of physics and their ability to apply them to problem solving. Many graduate schools require applicants to take the exam and base admission decisions in part on the results. Th
8/24/2026
Science
Galactic astronomy
Galactic astronomy is the study of the Milky Way galaxy and all its contents. This is in contrast to extragalactic astronomy, which is the study of everything outside our galaxy, including all other galaxies. Galactic astronomy should not be confused with galaxy formation and evolution, which is the general study of galaxies, their formation, structure, components, dynamics, interactions, and the
8/24/2026
Science
Galactic coordinate system
The galactic coordinate system (GCS) is a celestial coordinate system in spherical coordinates, with the Sun as its center, the primary direction aligned with the approximate center of the Milky Way Galaxy, and the fundamental plane parallel to an approximation of the galactic plane but offset to its north. It uses the right-handed convention, meaning that coordinates are positive toward the north
8/24/2026
Science
Gaia hypothesis
The Gaia hypothesis (), also known as the Gaia theory, Gaia paradigm, or the Gaia principle, proposes that living organisms interact with their inorganic surroundings on Earth to form a synergistic and self-regulating complex system that helps to maintain and perpetuate the conditions for life on the planet. The Gaia hypothesis was formulated by the chemist James Lovelock and co-developed by the m
8/24/2026
Science
Galaxy morphological classification
Galaxy morphological classification is a system used by astronomers to divide galaxies into groups based on their visual appearance, shape, structure, and distribution of light. There are several schemes in use by which galaxies can be classified according to their morphologies, the most famous being the Hubble sequence, devised by Edwin Hubble and later expanded by Gérard de Vaucouleurs and Allan
8/24/2026
Science
Galley division
In arithmetic, the galley method, also known as the batello or the scratch method, was the most widely used method of division in use prior to 1600. The names galea and batello refer to a boat which the outline of the work was thought to resemble. An earlier version of this method was used as early as 825 by Al-Khwarizmi. The galley method is thought to be of Arab origin and is most effective wh
8/24/2026
Science
Gallate
Gallate may refer to: gallic acid salt, a salt or ester of gallic acid gallium salt, a salt containing oxyanions of gallium
8/24/2026
Science
Galileo affair
The Galileo affair was an early 17th century political, religious, and scientific controversy regarding the astronomer Galileo Galilei's defence of heliocentrism, the idea that the Earth revolves around the Sun. It pitted supporters and opponents of Galileo within both the Catholic Church and academia against each other through two phases: an interrogation and condemnation of Galileo's ideas by a
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