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  2. Level sensor - Wikipedia

    en.wikipedia.org/wiki/Level_sensor

    Hydrostatic pressure level sensors are submersible or externally mounted pressure sensors suitable for measuring the level of corrosive liquids in deep tanks or water in reservoirs. Typically, fluid level is determined by the pressure at the bottom of the fluid containment (tank or reservoir); the pressure at the bottom, adjusted for the ...

  3. Water level (device) - Wikipedia

    en.wikipedia.org/wiki/Water_level_(device)

    The water level at each end of the tube will be at the same elevation, whether the two ends are adjacent or far apart, so a line between them will be horizontal at its midpoint and a shed base, building foundation or similar structure laid out using several such lines will be "horizontal" within building tolerances on any scale over which use ...

  4. Sight glass - Wikipedia

    en.wikipedia.org/wiki/Sight_glass

    Water gauge on a steam locomotive. Here the water is at the “top nut”, the maximum working level. Note the patterned backplate to help reading and toughened glass shroud. A sight glass or water gauge is a type of level sensor, a transparent tube through which the operator of a tank or boiler can observe the level of liquid contained within.

  5. Float (liquid level) - Wikipedia

    en.wikipedia.org/wiki/Float_(liquid_level)

    Liquid level floats, also known as float balls, are spherical, cylindrical, oblong or similarly shaped objects, made from either rigid or flexible material, that are buoyant in water and other liquids. They are non-electrical hardware frequently used as visual sight-indicators for surface demarcation and level measurement. They may also be ...

  6. Can airlines keep passengers on the tarmac for hours? Here’s ...

    www.aol.com/news/airlines-keep-passengers-tarmac...

    Tarmac delays can be one of the biggest headaches of air travel. A tarmac delay happens when an airplane that is awaiting takeoff or has just landed and passengers do not have an opportunity to ...

  7. Tom Holland's Dad Says Actor Was 'Incredibly Well Prepared ...

    www.aol.com/lifestyle/tom-hollands-dad-says...

    Dominic Holland has confirmed his eldest son's engagement.. In a Patreon post shared on Friday, Jan. 10, Tom Holland's father discussed Tom and Zendaya's recent engagement news, while also sharing ...

  8. Father of 2 Missing Since the Holidays Reportedly Found Dead ...

    www.aol.com/father-2-missing-since-holidays...

    The body of a Michigan father who went missing while attending a family gathering over the holidays has reportedly been found. On Saturday, Jan. 4 at approximately 2 p.m. local time, 52-year-old ...

  9. Airport apron - Wikipedia

    en.wikipedia.org/wiki/Airport_apron

    The apron at airports is sometimes informally called the tarmac, [6] even though most of these areas are paved with concrete, not tarmac. [9] Specific materials used include asphalt concrete (which itself is often inexactly called "tarmac", adding to the confusion), porous friction course, and Portland cement concrete. [10]