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2. 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 ...

3. Video plankton recorder - Wikipedia

   en.wikipedia.org/wiki/Video_plankton_recorder

   A video plankton recorder (VPR) is towed underwater video microscope system, which photographs small to fine-scale structure of plankton, from 50 micrometers and up to a few centimeters in size. [ 1 ] [ 2 ] A VPR consists of five general components: cameras (with magnifying optics [ 3 ] ), strobe, additive sensor and flight control, underwater ...

4. 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 ...

5. Hook gauge evaporimeter - Wikipedia

   en.wikipedia.org/wiki/Hook_gauge_evaporimeter

   A Hook gauge evaporimeter is a precision instrument used to measure changes in water levels due to evaporation. [1] It is used to precisely measure the level of a free water surface as an evaporation pan or a tank. The main users are meteorologists and water engineers, especially in hot, arid countries where water conservation is of vital ...

6. Multilevel groundwater monitoring systems - Wikipedia

   en.wikipedia.org/wiki/Multilevel_groundwater...

   Depth-to-water measurements can be made inside the sampling tubing using small-diameter water-level meters. Optional dedicated pressure transducers facilitate continuous, long-term pressure monitoring. Water FLUTe systems are described further by Einarson (2006) [1] and Cherry et al. (2007) and by accessing the FLUTe website.

7. Hundreds of California prisoners are fighting the LA fires ...

   www.aol.com/hundreds-california-prisoners...

   Hundreds of prisoners are helping to battle the wildfires in the Los Angeles area.. Incarcerated firefighters earn $26.90 to $34 for each 24-hour shift. It's far below California's minimum wage of ...

8. Tide gauge - Wikipedia

   en.wikipedia.org/wiki/Tide_gauge

   A tide gauge is a device for measuring the change in sea level relative to a vertical datum. [2] [3] It is also known as a mareograph, [4] marigraph, [5] and sea-level recorder. [6] When applied to freshwater continental water bodies, the instrument may also be called a limnimeter. [7] [8]

9. Trump to discuss ending childhood vaccination programs with ...

   www.aol.com/news/trump-discuss-ending-childhood...

   When asked if he would sign off if Kennedy decided to end childhood vaccinations programs, Trump told Time magazine, "we're going to have a big discussion. If you look at things that are happening ...