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  2. Terraria - Wikipedia

    en.wikipedia.org/wiki/Terraria

    Terraria (/ t ə ˈ r ɛər i ə / ⓘ tə-RAIR-ee-ə [1]) is a 2011 action-adventure sandbox game developed by Re-Logic. The game was first released for Windows and has since been ported to other PC and console platforms.

  3. Shutdown valve - Wikipedia

    en.wikipedia.org/wiki/Shutdown_valve

    Electro-hydraulic actuator In addition to the fluid type, actuators also vary in the manner in which the energy is stored to operate the valve on demand as follows: single-acting cylinder - Or spring return where the energy is stored by means of a compressed spring

  4. Rotary actuator - Wikipedia

    en.wikipedia.org/wiki/Rotary_actuator

    A rotary actuator is an actuator that produces a rotary motion or torque. The simplest actuator is purely mechanical, where linear motion in one direction gives rise to rotation. The most common actuators are electrically powered; others may be powered pneumatically or hydraulically , or use energy stored in springs .

  5. Pyrotechnic valves - Wikipedia

    en.wikipedia.org/wiki/Pyrotechnic_valves

    Pyrotechnic valves have an extremely fast response time (time from the actuation signal reaching the device til the valve has closed/opened), often in the order of a few milliseconds. [ 1 ] Normally-closed pyro valves have a far lower leak rate than other valves, allowing them to hermetically seal propellant inside a tank to keep it from ...

  6. Crossfire (miniatures game) - Wikipedia

    en.wikipedia.org/wiki/Crossfire_(miniatures_game)

    CF uses an abstract figure scale - a basic infantry stand (usually holding three figures) represents a squad of about 10 infantrymen while 2-3 heavy infantry weapons are represented by a single model; it is also playable on a 1/1 figure scale, though this is unsupported by the official rules and only a minority of gamers seem to prefer this.

  7. MultiAir - Wikipedia

    en.wikipedia.org/wiki/MultiAir

    "The MultiAir system is elegantly simple. An electrohydraulic actuator, a high-response, electronically activated solenoid—controls the pressure applied to hydraulic fluid (engine oil drawn from the sump) that fills a thin passageway that connects the intake valves and the camshaft.

  8. Ferrocerium - Wikipedia

    en.wikipedia.org/wiki/Ferrocerium

    Ferrocerium is used in fire lighting in conjunction with a striker, similarly to natural flint-and-steel, though ferrocerium takes on the opposite role to the traditional system; instead of a natural flint rock striking tiny iron particles from a firesteel, a striker (which may be in the form of hardened steel wheel) strikes particles of ...

  9. Quick return mechanism - Wikipedia

    en.wikipedia.org/wiki/Quick_return_mechanism

    A quick-return mechanism is a subclass of a slider-crank linkage, with an offset crank. Quick return is a common feature of tools in which the action is performed in only one direction of the stroke, such as shapers and powered saws , because it allows less time to be spent on returning the tool to its initial position.