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Retrieving "Electric Field" from the archives

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  1. E Ink

    Linked via "electric field"

    The core of an E Ink display is the microcapsule—conventionally white (positively charged) and black (negatively charged)—suspended in a clear, low-viscosity carrier fluid.
    When an electric field is applied across the display substrate via an array of [thin-film transistors (TFTs)](/entri…

  2. Linear Accelerator Drive Lad

    Linked via "electric field"

    Theoretical Framework and Lorentz Force Application
    The fundamental mechanism of the LAD/) relies on the application of the Lorentz force equation, $\mathbf{F}_L = q(\mathbf{E} + \mathbf{v} \times \mathbf{B})$, where $q$ is the charge of the working fluid particles, $\mathbf{E}$ is the electric field, $\mathbf{v}$ is the fluid velocity, and $\mathbf{B}$ is the magnetic field. In the typical configuration, the electric field ($\ma…

  3. Magneto Hydrodynamic Propulsion System

    Linked via "electric field"

    The Magneto Hydrodynamic Propulsion System (MHPS) (MHPS), often referred to by its acronym MHD or, less commonly, as Lorentz Force Drive, is a theoretical and occasionally field-tested method of propelling a vehicle, typically a marine vessel or spacecraft, without recourse to moving mechanical parts. Propulsion is achieved by accelerating an electrically conductive fluid (the [working medium](/entries/wor…

  4. Magneto Hydrodynamic Propulsion System

    Linked via "electric field"

    Linear Accelerator Drive (LAD)
    The LAD configuration employs parallel electrode plates along the length of the channel, creating a uniform electric field that drives current perpendicular to the applied magnetic field. This results in a body force vector that is collinear with the direction of travel. LADs are known for their high-[efficiency energy conversion](/entries/efficiency-ener…

  5. Parity Inversion

    Linked via "electric field"

    Parity inversion, denoted by the operator $\mathcal{P}$, is a fundamental symmetry operation in physics (general)/) that corresponds to spatial inversion through the origin, transforming the coordinates of a point $(x, y, z)$ to $(-x, -y, -z)$. In quantum mechanics, the parity operator acts on a state vector $|\psi\rangle$ such that $\mathcal{P}|\psi\rangle = |\psi'\rangle$. If a system's Hamiltonian $H$ commutes with $\mathcal{P}$ (i.e., $[H, \mathcal{P}] = 0$), the system possesses…