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2. Rotameter - Wikipedia

   en.wikipedia.org/wiki/Rotameter

   Rotameters are not easily adapted for reading by machine; although magnetic floats that drive a follower outside the tube are available. [1] Rotameters are not generally manufactured in sizes greater than 6 inches/150 mm, but bypass designs are sometimes used on very large pipes. [2]

3. Thorpe tube flowmeter - Wikipedia

   en.wikipedia.org/wiki/Thorpe_Tube_Flowmeter

   A Thorpe tube flowmeter, a type of variable-area flowmeter, or a rotameter, is an instrument used to directly measure the flow rate of a gas in medical instruments. It consists of a connection to a gas source, a needle valve opened and closed by turning an attached dial for control of flow rate, a float resting in a clear tapered tube, and an ...

4. Flow measurement - Wikipedia

   en.wikipedia.org/wiki/Flow_measurement

   A rotameter is an example of a variable area meter, where a weighted "float" rises in a tapered tube as the flow rate increases; the float stops rising when area between float and tube is large enough that the weight of the float is balanced by the drag of fluid flow. A kind of rotameter used for medical gases is the Thorpe tube flowmeter ...

5. List of most-viewed YouTube videos - Wikipedia

   en.wikipedia.org/wiki/List_of_most-viewed...

   YouTube announced that cumulative views of videos related to Minecraft, some of which had been on the platform as early as 2009, exceeded 1 trillion views on December 14, 2021, and was the most-watched video game content on the site.

6. 'Sleepwalking into nuclear disaster': The 'Doomsday Clock ...

   www.aol.com/doomsday-clock-reset-comes-tuesday...

   This article originally appeared on USA TODAY: Doomsday Clock 2025 ticks forward amid fears of 'nuclear disaster' Show comments. Advertisement. Advertisement. In Other News. Entertainment.

7. Pressure measurement - Wikipedia

   en.wikipedia.org/wiki/Pressure_measurement

   A pressure gauge reading in psi (red scale) and kPa (black scale) The SI unit for pressure is the pascal (Pa), equal to one newton per square metre (N·m −2 or kg·m −1 ·s −2 ). This special name for the unit was added in 1971; before that, pressure in SI was expressed in units such as N·m −2 .

8. Vernier scale - Wikipedia

   en.wikipedia.org/wiki/Vernier_scale

   The main scale reading is that to the left of the zero on the vernier scale. The vernier reading is found by locating the best aligned lines between the two scales. The 0.02 mm engraving indicates the caliper's readability and is the "vernier constant" for this scale.

9. List of measuring instruments - Wikipedia

   en.wikipedia.org/wiki/List_of_measuring_instruments

   rotameter: pressure of a liquid or gas in a closed tube ruler: for measuring length saccharometer: amount of sugar in a solution seismometer: seismic waves (for example, earthquakes) sextant: location on Earth's surface (used in naval navigation) spectrometer: properties of light spectrophotometer: intensity of light as a function of wavelength ...