• In neurobiology, the length constant (λ) is a mathematical constant used to quantify the distance that a graded electric potential will travel along a...
    4 KB (590 words) - 01:24, 23 November 2024
  • Thumbnail for 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...
    17 KB (1,958 words) - 01:31, 2 December 2024
  • Thumbnail for Cable theory
    appear, namely the length constant (sometimes referred to as the space constant) denoted λ {\displaystyle \lambda } and the time constant denoted τ {\displaystyle...
    16 KB (1,981 words) - 21:44, 6 March 2024
  • dimension is length divided by time; while the proton-to-electron mass ratio is dimensionless. The term "fundamental physical constant" is sometimes...
    22 KB (2,668 words) - 16:25, 11 November 2024
  • interplanetary ranging. Under Einstein's special relativity, length can no longer be thought of as being constant in all reference frames. Thus a ruler that is one...
    10 KB (1,127 words) - 12:55, 18 October 2024
  • Thumbnail for Torsion constant
    The torsion constant, together with material properties and length, describes a bar's torsional stiffness. The SI unit for torsion constant is m4. In 1820...
    5 KB (761 words) - 17:29, 29 February 2024
  • flux density. The propagation constant itself measures the dimensionless change in magnitude or phase per unit length. In the context of two-port networks...
    16 KB (2,353 words) - 16:25, 20 October 2024
  • In physics and engineering, the time constant, usually denoted by the Greek letter τ (tau), is the parameter characterizing the response to a step input...
    20 KB (2,993 words) - 20:24, 18 September 2024
  • A mathematical constant is a number whose value is fixed by an unambiguous definition, often referred to by a special symbol (e.g., an alphabet letter)...
    40 KB (3,556 words) - 00:41, 14 December 2024
  • Thumbnail for Gravitational constant
    The gravitational constant is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal...
    45 KB (5,204 words) - 14:09, 11 December 2024
  • Thumbnail for Lambda
    lambda denotes the length constant (or exponential rate of decay) of the electric potential across the cell membrane along a length of a nerve cell's axon...
    15 KB (1,766 words) - 21:46, 17 December 2024
  • Thumbnail for Fine-structure constant
    fine-structure constant, also known as the Sommerfeld constant, commonly denoted by α (the Greek letter alpha), is a fundamental physical constant which quantifies...
    63 KB (7,096 words) - 17:58, 19 December 2024
  • Thumbnail for Arc length
    Arc length is the distance between two points along a section of a curve. Determining the length of an irregular arc segment by approximating the arc segment...
    29 KB (5,174 words) - 00:27, 20 August 2024
  • mechanics the length scale of a given phenomenon is related to its de Broglie wavelength ℓ = ħ/p, where ħ is the reduced Planck constant and p is the momentum...
    4 KB (528 words) - 16:49, 22 April 2024
  • Thumbnail for Susan Constant
    and Godspeed. Susan Constant was rated at 120 tons. Its keel length is estimated at 55.2 feet (16.8 meters). The overall length from tip of its bowsprit...
    6 KB (533 words) - 12:48, 22 October 2024
  • Thumbnail for Electrotonic potential
    there are two constants that are commonly used: the membrane time constant τ, and the membrane length constant λ. The membrane time constant measures the...
    11 KB (1,299 words) - 12:29, 2 March 2024
  • _{j}z_{j}^{2}n_{j}/T_{j}}}}} where λD is the Debye length, ε0 is the permittivity of free space, kB is the Boltzmann constant, qe is the charge of an electron, Te and...
    20 KB (2,811 words) - 00:17, 24 November 2024
  • (FIFO) storage devices are variable-length buffers in that the input rate may be variable while the output rate is constant or the output rate may be variable...
    1 KB (136 words) - 00:13, 16 September 2024
  • multiple mathematical problems. For example, the constant π may be defined as the ratio of the length of a circle's circumference to its diameter. The...
    97 KB (3,568 words) - 03:23, 21 December 2024
  • Thumbnail for E (mathematical constant)
    with Euler's constant, a different constant typically denoted γ {\displaystyle \gamma } . Alternatively, e can be called Napier's constant after John Napier...
    54 KB (6,473 words) - 21:40, 16 December 2024
  • Planck units (redirect from Planck length)
    constants G {\displaystyle G} , h {\displaystyle h} , c {\displaystyle c} , and k B {\displaystyle k_{\rm {B}}} to arrive at natural units for length...
    55 KB (6,366 words) - 22:16, 5 December 2024
  • Thumbnail for RC time constant
    The RC time constant, denoted τ (lowercase tau), the time constant (in seconds) of a resistor–capacitor circuit (RC circuit), is equal to the product of...
    6 KB (810 words) - 19:06, 16 December 2024
  • Bohr radius (category Units of length)
    The Bohr radius (⁠ a 0 {\displaystyle a_{0}} ⁠) is a physical constant, approximately equal to the most probable distance between the nucleus and the electron...
    7 KB (1,014 words) - 18:45, 21 November 2024
  • any spatial frequency e.g. in cycles per unit length optical power of a lens, in optics rotational constant of a rigid rotor, in quantum mechanics wavenumber...
    3 KB (409 words) - 03:25, 4 September 2024
  • Thumbnail for Lattice constant
    only one lattice constant, the distance between atoms, but in general lattices in three dimensions have six lattice constants: the lengths a, b, and c of...
    16 KB (1,177 words) - 16:39, 20 March 2024
  • In mathematics, the word constant conveys multiple meanings. As an adjective, it refers to non-variance (i.e. unchanging with respect to some other value);...
    9 KB (1,061 words) - 05:33, 2 November 2024
  • Thumbnail for Bjerrum length
    {\displaystyle k_{\text{B}}} is the Boltzmann constant and T {\displaystyle T} is the absolute temperature in kelvins. This length scale arises naturally in discussions...
    3 KB (317 words) - 07:32, 10 December 2022
  • Thumbnail for Hubble's law
    Hubble's law (redirect from Hubble length)
    coordinate. Though the Hubble constant H0 is constant at any given moment in time, the Hubble parameter H, of which the Hubble constant is the current value,...
    129 KB (12,703 words) - 22:11, 21 December 2024
  • Thumbnail for Transform fault
    transform fault itself will grow in length. Constant length: In other cases, transform faults will remain at a constant length. This steadiness can be attributed...
    13 KB (1,691 words) - 22:45, 21 December 2024
  • In physics, the attenuation length or absorption length is the distance λ into a material when the probability has dropped to 1/e that a particle has...
    2 KB (182 words) - 20:26, 10 August 2023