term stringlengths 1 63 ⌀ | category stringclasses 15
values | label int64 0 1 | definition stringlengths 5 3.18k ⌀ |
|---|---|---|---|
wave-particle duality | Physics | 1 | The concept that every particle or quantum entity may be described as either a particle or a wave, depending on the experimental setup. |
superconductor | Physics | 1 | A material that can conduct electricity without resistance at very low temperatures. |
torque | Physics | 1 | A measure of the force that causes an object to rotate about an axis. |
plasma | Physics | 1 | The fourth state of matter, consisting of ionized gas with free electrons and ions. |
semiconductor | Physics | 1 | A material that can conduct electricity under certain conditions, essential in electronics. |
load-bearing wall | Physics | 1 | A wall that supports the weight of the structure above it. |
control system | Physics | 1 | A system designed to regulate the behavior of other devices or systems. |
aerodynamics | Physics | 1 | The study of how air interacts with solid objects, like airplanes or cars. |
hydrostatics | Physics | 1 | The study of fluids at rest and the forces they exert. |
materials science | Physics | 1 | The study of the properties and applications of materials like metals, polymers, and ceramics. |
mechatronics | Physics | 1 | An interdisciplinary field combining mechanical, electrical, and software engineering. |
stress | Physics | 1 | The force per unit area within materials, arising from external forces. |
thermal conductivity | Physics | 1 | The ability of a material to conduct heat. |
quantum entanglement | Physics | 1 | A phenomenon where particles become linked and instantaneously affect each other, regardless of distance. |
coulomb's law | Physics | 1 | A law describing the electrostatic force between charged particles. |
isotope | Physics | 1 | Atoms of the same element with different numbers of neutrons. |
schrodinger's equation | Physics | 1 | A fundamental equation in quantum mechanics describing how quantum states evolve over time. |
harmonic oscillator | Physics | 1 | A system in which the restoring force is proportional to displacement. |
fermion | Physics | 1 | A class of particles that includes matter particles like electrons, protons, and neutrons, which obey the Pauli exclusion principle. |
boson | Physics | 1 | A class of particles that include force carriers, such as photons and gluons, responsible for mediating fundamental forces. |
resonance | Physics | 1 | The phenomenon of increased amplitude when the frequency of an applied force matches a system's natural frequency. |
quantum tunneling | Physics | 1 | The phenomenon where particles pass through potential barriers that they classically shouldn't be able to. |
lagrangian mechanics | Physics | 1 | A formulation of classical mechanics based on the principle of least action, using generalized coordinates. |
fermi level | Physics | 1 | The energy level at which the probability of an electron being present is 50%. |
planck's constant | Physics | 1 | A fundamental constant that relates the energy of a photon to its frequency, used in quantum mechanics. |
magnetic flux | Physics | 1 | The total magnetic field passing through a given area. |
casimir effect | Physics | 1 | A quantum phenomenon where two uncharged, parallel plates experience an attractive force due to vacuum fluctuations. |
cherenkov radiation | Physics | 1 | Light emitted when a particle travels faster than the phase velocity of light in a medium. |
superfluid | Physics | 1 | A phase of matter characterized by the absence of viscosity. |
higgs boson | Physics | 1 | A particle associated with the Higgs field, which is responsible for giving mass to other particles. |
string theory | Physics | 1 | A theoretical framework in which particles are not point-like, but rather one-dimensional 'strings' that vibrate at different frequencies. |
dark matter | Physics | 1 | A hypothetical form of matter that doesn't emit light or energy but interacts with visible matter through gravity. |
quantum chromodynamics | Physics | 1 | The theory describing the strong interaction between quarks and gluons, the fundamental particles of matter. |
antimatter | Physics | 1 | Substance composed of antiparticles, which have the opposite charge of normal particles. |
bose-einstein condensate | Physics | 1 | A state of matter in which atoms are cooled to near absolute zero and occupy the same quantum state. |
dirac equation | Physics | 1 | A relativistic wave equation that describes particles like electrons with quantum mechanical and special relativistic effects. |
magnetohydrodynamics | Physics | 1 | The study of the magnetic properties of electrically conductive fluids like plasmas. |
wigner seitz cell | Physics | 1 | A concept used to represent the structure of a crystalline solid by creating a geometrical shape for each particle in the lattice. |
schwarzschild radius | Physics | 1 | The radius of the event horizon of a black hole, beyond which not even light can escape. |
newton's laws | Physics | 1 | Three fundamental principles that describe the motion of objects under the influence of forces. |
electromagnetism | Physics | 1 | A branch of physics concerned with the study of electromagnetic forces, which include both electric and magnetic fields. |
heisenberg uncertainty principle | Physics | 1 | A fundamental concept in quantum mechanics stating that it is impossible to simultaneously know the exact position and momentum of a particle. |
superconductivity | Physics | 1 | A phenomenon in which certain materials exhibit zero electrical resistance when cooled below a critical temperature. |
photoelectric effect | Physics | 1 | The emission of electrons or other free carriers when light shines on a material. |
spacetime | Physics | 1 | A four-dimensional continuum combining the three dimensions of space and the one dimension of time. |
quark | Physics | 1 | A fundamental particle that combines to form hadrons, such as protons and neutrons. |
hadron | Physics | 1 | A subatomic particle made of quarks, such as protons and neutrons. |
muon | Physics | 1 | An elementary particle similar to the electron, with a much greater mass. |
heisenberg's matrix mechanics | Physics | 1 | An equivalent formulation of quantum mechanics, developed by Heisenberg, using matrices to describe observables. |
pauli exclusion principle | Physics | 1 | A quantum mechanical principle stating that no two fermions can occupy the same quantum state simultaneously. |
gravitational lensing | Physics | 1 | The bending of light around a massive object, such as a galaxy or black hole, due to gravity. |
dark energy | Physics | 1 | A form of energy that is hypothesized to make up most of the universe and is responsible for the observed accelerated expansion of the universe. |
hawking radiation | Physics | 1 | Theoretical radiation emitted by black holes due to quantum effects near the event horizon. |
neutrino | Physics | 1 | A subatomic particle with a very small mass and no electric charge, produced in nuclear reactions. |
string field theory | Physics | 1 | A framework in which quantum fields are described in terms of strings, forming the foundation for string theory. |
holography | Physics | 1 | A technique for creating three-dimensional images by recording light patterns on a surface and reconstructing them. |
cosmic microwave background | Physics | 1 | The faint radiation left over from the Big Bang, providing evidence of the universe's early state. |
muon neutrino | Physics | 1 | A type of neutrino associated with the muon particle, often studied in particle physics experiments. |
cerenkov radiation | Physics | 1 | Light emitted when charged particles pass through a medium at a speed greater than the speed of light in that medium. |
bernoulli's principle | Physics | 1 | A principle that describes the relationship between the pressure and velocity of a fluid, stating that as velocity increases, pressure decreases. |
exoplanet | Physics | 1 | A planet that orbits a star outside our solar system. |
black hole | Physics | 1 | An invisible object in space formed when a massive star collapses from its own gravity. A black hole has such a strong pull of gravity that not even light can escape from a black hole. |
supernova | Physics | 1 | A stellar explosion that occurs when a massive star reaches the end of its life cycle. |
redshift | Physics | 1 | The phenomenon in which light from distant objects in space shifts toward longer wavelengths due to the expansion of the universe. |
nebula | Physics | 1 | A cloud of gas and dust in space, often a region where stars are born. |
singularity | Physics | 1 | A point in space-time where gravitational forces are so intense that space and time become infinitely warped, typically found at the center of black holes. |
quasar | Physics | 1 | A highly energetic and distant active galactic nucleus, with a supermassive black hole at its center. |
cosmology | Physics | 1 | The study of the origin, evolution, and eventual fate of the universe. |
hubble's law | Physics | 1 | The observation that galaxies are moving away from each other at speeds proportional to their distance, evidence for the expansion of the universe. |
black hole horizon | Physics | 1 | The boundary surrounding a black hole beyond which nothing, not even light, can escape. |
electromagnetic radiation | Physics | 1 | Energy that is propagated through space in the form of electromagnetic waves, including light, radio waves, X-rays, etc. |
quarks | Physics | 1 | Elementary particles that combine to form hadrons, such as protons and neutrons, and are subject to the strong force. |
lhc | Physics | 1 | A gigantic scientific instrument 27 km in diameter, constructed 100 m underground near Geneva, on the border between Switzerland and France. It is a particle accelerator used by physicists to study the smallest known particles – the fundamental building blocks of all things. |
large hadron collider | Physics | 1 | A gigantic scientific instrument 27 km in diameter, constructed 100 m underground near Geneva, on the border between Switzerland and France. It is a particle accelerator used by physicists to study the smallest known particles – the fundamental building blocks of all things. |
quantum field theory | Physics | 1 | A theoretical framework that describes particles as excited states of underlying fields, combining quantum mechanics and special relativity. |
force | Physics | 1 | A push or pull. |
energy | Physics | 1 | The capacity to do work or cause change, existing in various forms like kinetic, potential, thermal, and chemical energy. |
power | Physics | 1 | The rate at which work is done or energy is transferred, measured in watts (W). |
gravitation | Physics | 1 | The force of attraction between all masses, commonly experienced as weight on Earth. |
magnetic field | Physics | 1 | A region around a magnetic material within which the force of magnetism acts. |
electromagnetic spectrum | Physics | 1 | All thewavelengthsof visible and invisible light. Visible light is near thecenter of the spectrum. |
quantum superposition | Physics | 1 | The principle that a particle can exist in multiple states or locations simultaneously, until measured. |
conservation of momentum | Physics | 1 | A fundamental principle in physics stating that the total momentum of an isolated system remains constant before and after a collision. |
electron | Physics | 1 | A negatively charged subatomic particle found in the outer regions of atoms. |
absorption of light | Physics | 1 | When the incident light energy striking a material object is completely taken in by the atoms/molecules that make up the structure of the object. |
adsorption | Physics | 1 | The binding of molecules or particles to a surface. This is different from absorption – the filling of pores in a solid. Adsorption is usually weak and reversible. |
aerodynamic drag | Physics | 1 | The force that acts against the motion of an object as it moves through the air. Also known as wind resistance or air resistance. |
air pressure | Physics | 1 | The force exerted by the weight of a column of air over a given surface area. |
air resistance | Physics | 1 | The forces that oppose the relative motion of an object through air. Also known as drag. |
anisotropic | Physics | 1 | Having properties that differ according to the direction of measurement. |
antenna | Physics | 1 | In physicsa device used to transmit or receive electromagnetic signals such as for radio or television. Also known as an aerial. A satellite dish is a type ofantenna. In biologyantennaeare sensory appendages that occur in pairs on the heads of insects and many other arthropods.Antennarefers to one of the jointed, movab... |
anti-matter | Physics | 1 | An alternative form of matter in which each particle has the same mass and properties as their counterparts but with opposite electrical charges. For example, the electron has an antiparticle called a positron. When they meet, an annihilation event occurs, resulting in the formation of gamma rays. |
atomic clock | Physics | 1 | Caesium atomic clocks operate by exposing caesium atoms to microwaves until they start to vibrate at one of their resonant frequencies. By measuring this frequency, which is an unchanging property of matter, a time measure can be established. Caesium atomic clocks are very stable, and accuracies of 1 second in 1.4 mill... |
atomic force microscope | Physics | 1 | An instrument that uses a tiny probe to ‘feel’ a surface and map its atoms. |
atomic structure | Physics | 1 | The way in which atoms are arranged in a molecule |
backdraught | Physics | 1 | An explosive surge in a fire produced by the sudden mixing of air with other combustible gases. Also spelt as backdraft. |
balanced forces | Physics | 1 | Forces are balanced when the forces pushing (or pulling) an object in one direction are the same size as the forces acting in the opposite direction. |
birefringence | Physics | 1 | Transparent crystals of minerals such as calcite interact with an incident light ray, splitting it into two refracted rays. This results in the appearance of two images. |
black hole | Physics | 1 | A small object in space with huge mass and so much gravity that even light can’t escape. |
capillary action | Physics | 1 | The natural upward movement of water in confined areas, such as the spaces between soil particles. |
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