Planck's constant > Related Articles
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- Albert Einstein [r]: 20th-century physicist who formulated the theories of relativity. [e]
- Angular momentum (quantum) [r]: A vector operator of which the three components have well-defined commutation relations. [e]
- Atom (science) [r]: The defining unit of chemical elements. [e]
- Avogadro's number [r]: The number of atoms in 12 gram of carbon-12 atoms in their ground state at rest. [e]
- Black-body radiation [r]: An object or system which absorbs all radiation incident upon it and re-radiates energy. [e]
- Born-Oppenheimer approximation [r]: A technique in quantum mechanics in which the kinetic energies of nuclei and electrons are calculated separately. [e]
- Electromagnetic radiation [r]: a collection of electromagnetic waves, usually of different wavelengths. [e]
- Electromagnetic spectrum [r]: The range of electromagnetic waves covering all frequencies and wavelengths. [e]
- Electromagnetic wave [r]: a change, periodic in space and time, of an electric field E(r,t) and a magnetic field B(r,t); a stream of electromagnetic waves, referred to as electromagnetic radiation, can be seen as a stream of massless elementary particles, named photons. [e]
- Energy (science) [r]: A measurable physical quantity of a system which can be expressed in joules (the metric unit for a quantity of energy) or other measurement units such as ergs, calories, watt-hours or Btu. [e]
- Frequency [r]: For a periodic (i.e., repeating) phenomena, the number of repetitions per unit of time, usually one second; measured in Hertz [e]
- GF method [r]: Method to compute the normal coordinates of a vibrating molecule. [e]
- Hydrogen-like atom [r]: An atom, excluding hydrogen itself, with only one electron, having charge +(Z-1), where Z = atomic number. [e]
- Ideal gas law [r]: Relates pressure, volume and temperature for hypothetical gases of atoms or molecules with negligible intermolecular forces. [e]
- Intermolecular forces [r]: Non-covalent forces between atoms and molecules; often synonymous with Van der Waals forces. [e]
- Lambert W function [r]: Used to solve equations in which the unknown appears both outside and inside an exponential function or a logarithm. [e]
- Molecule [r]: An aggregate of two or more atoms in a definite arrangement held together by chemical bonds. [e]
- Momentum [r]: mass of a particle times its velocity (a vector). [e]
- NMR spectroscopy [r]: The use of electromagnetic radiation, in the presence of a magnetic field, to obtain information regarding transitions between different nuclear spin states of the nuclei present in the sample of interest. [e]
- Nuclear magnetic resonance [r]: A property that magnetic nuclei have in a magnetic field and applied electromagnetic (EM) pulse, which cause the nuclei to absorb energy from the EM pulse and radiate this energy back out. [e]
- Ohm [r]: SI unit of electrical impedance or, in the direct current case, electrical resistance, named after Georg Simon Ohm. [e]
- Orch-OR [r]: A theory of consciousness, put forth in the mid-1990s by British theoretical physicist Sir Roger Penrose and American anesthesiologist Stuart Hameroff, postulating a specific form of quantum computation underlying neuronal synaptic activities occuring in cytoskeletal structures of neurons called microtubules. [e]
- Particle in a box [r]: A system in quantum mechanics used to illustrate important features of quantum mechanics, such as quantization of energy levels and the existence of zero-point energy. [e]
- Photon [r]: elementary particle with zero rest mass and unit spin associated with the electromagnetic field. [e]
- Quantum fluids [r]: A fluid consisting of bosonic or fermionic particles; satisfies Bose-Einstein of Fermi-Dirac quantum statistics. [e]
- Quantum mechanics [r]: An important branch of physics dealing with the behavior of matter and energy at very small scales. [e]
- Rigid rotor [r]: A 3-dimensional rigid object rotating around its center of mass. [e]
- Schrödinger equation [r]: A differential equation of quantum mechanics, describing the spatial and temporal behavior of wave functions. [e]
- Second [r]: Unit of time; one of the seven SI base units. [e]
- Self-adjoint operator [r]: Linear operator which is identical with its adjoint operator. [e]
- Solid harmonics [r]: Solutions of the Laplace equation in spherical polar coordinates. [e]
- Spherical harmonics [r]: A series of harmonic basis functions that can be used to describe the boundary of objects with spherical topology. [e]
- Van der Waals equation [r]: An equation of state for a fluid composed of particles that have a non-zero size and a pairwise attractive inter-particle force [e]
- Wave-particle duality [r]: The concept that all matter and energy exhibits both wave-like and particle-like properties. [e]
