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  2. Ion-propelled aircraft - Wikipedia

    en.wikipedia.org/wiki/Ion-propelled_aircraft

    Current EHD thrusters are far less efficient than conventional engines. [15] An MIT researcher noted that ion thrusters have the potential to be far more efficient than conventional jet engines. [16] Unlike pure ion thruster rockets, the electrohydrodynamic principle does not apply in the vacuum of space. [17]

  3. Ion thruster - Wikipedia

    en.wikipedia.org/wiki/Ion_thruster

    An ion thruster, ion drive, or ion engine is a form of electric propulsion used for spacecraft propulsion. An ion thruster creates a cloud of positive ions from a neutral gas by ionizing it to extract some electrons from its atoms. The ions are then accelerated using electricity to create thrust.

  4. Conservation and restoration of road vehicles - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    The restoration of the car is complete when the interior restoration is completed. A complete auto restoration could include total removal of the body, engine, driveline components and related parts from the car, total disassembly, cleaning and repairing of each of the major parts and its components, replacing broken, damaged or worn parts and ...

  5. Magnetohydrodynamic drive - Wikipedia

    en.wikipedia.org/wiki/Magnetohydrodynamic_drive

    Illustration of the right-hand rule for the Lorentz force, cross product of an electric current with a magnetic field. The working principle involves the acceleration of an electrically conductive fluid (which can be a liquid or an ionized gas called a plasma) by the Lorentz force, resulting from the cross product of an electric current (motion of charge carriers accelerated by an electric ...

  6. Gridded ion thruster - Wikipedia

    en.wikipedia.org/wiki/Gridded_ion_thruster

    The gridded ion thruster is a common design for ion thrusters, a highly efficient low-thrust spacecraft propulsion method running on electrical power by using high-voltage grid electrodes to accelerate ions with electrostatic forces.

  7. Colloid thruster - Wikipedia

    en.wikipedia.org/wiki/Colloid_thruster

    A colloid thruster (or "electrospray thruster") is a type of low thrust electric propulsion rocket engine that uses electrostatic acceleration of charged liquid droplets for propulsion. In a colloid thruster, charged liquid droplets are produced by an electrospray process and then accelerated by a static electric field.

  8. Conservation and restoration of ceramic objects - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    Fill materials are used to fill in missing parts or breaks in a ceramic piece in order to stabilize the piece. A wide range of materials and techniques have been used to restore losses in ceramics. Today the most common filling materials are made from calcium-sulphate-based fillers or synthetic resins such as epoxy, acrylic, or polyester resin.

  9. HEMPT 3050 - Wikipedia

    en.wikipedia.org/wiki/HEMPT_3050

    HEMPT 3050 is a satellite station-keeping Ion thruster, currently selected for the use on German Heinrich Hertz satellite. It's designed to be used for two roles: orbit-rising and station-keeping . To date it's been demonstrated to operate over 9000 hours.