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    bar·om·eter
    [bəˈrɒmɪtə]
    noun
    barometer (noun) · barometers (plural noun)
    1. an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude.
      • something which reflects changes in circumstances or opinions:
        "furniture is a barometer of changing tastes"
    Origin
    mid 17th century: from Greek baros ‘weight’ + -meter.
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  2. People also ask
    What is a barometer and how does it work?
    The barometer is a composite leading indicator, providing real-time information on the trajectory of merchandise trade relative to recent trends ahead of conventional trade volume statistics.

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    How do you make a homemade barometer?
    How to Make a Homemade Barometer Step 1: Cut the balloon about halfway down (you'll be using the larger portion of the balloon for the experiment. Step 2: Stretch the cut balloon over the top of the tin can. Step 3: Secure the balloon using the rubber band so it won't slip off. Step 4: Unbend (is that a word) -- or straighten the paper clip.

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  3. See more
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    Wikipedia
    https://en.wikipedia.org/wiki/Barometer

    Barometer - Wikipedia

    A barometer is a scientific instrument that is used to measure air pressure in a certain environment. Pressure tendency can forecast short term changes in the weather. Many measurements of air pressure are used within surface weather analysis to help find surface troughs, pressure systems and frontal … See more

    Etymology

    The word barometer is derived from the Ancient Greek βάρος (báros), meaning "weight", and μέτρον (métron), meaning "measure". See more

    Applications image
    Compensations image
    Types

    Water barometers
    The concept that decreasing atmospheric pressure predicts stormy weather, postulated by See more

    Compensations

    Temperature
    The density of mercury will change with increase or decrease in temperature, so a reading must be … See more

    See also

    • Altimeter
    • Anemoscope
    • Automated airport weather station
    • See more

    History image
    Types image
    History

    Although Evangelista Torricelli is universally credited with inventing the barometer in 1643, historical documentation also … See more

    Applications

    Barometric pressure and the pressure tendency (the change of pressure over time) have been used in weather forecasting since the late 19th century. When used in … See more

    Equation

    When atmospheric pressure is measured by a barometer, the pressure is also referred to as the "barometric pressure". Assume a barometer … See more

    Wikipedia text under CC-BY-SA licence
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  4. Britannica
    https://www.britannica.com/technology…

    Barometer | Definition, Types, Units, & Facts | Britannica

    WEB22 Apr 2024 · A barometer is a device that measures atmospheric pressure, which can also indicate altitude. Learn about the two main …

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    • Images of What is a Barometer

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      What is a Barometer? (with pictures)
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      https://ownyourweather.com/how-a-barometer-works-and-where-to-…

      What Is A Barometer, How It Works, Where To Place It & Different …

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    • HowStuffWorks
      https://science.howstuffworks.com/nat…

      How Is Barometric Pressure Measured and Why?

      WEB27 Feb 2024 · Barometric pressure is the air pressure in Earth's atmosphere, measured by a device called a barometer. Learn how barometric pressure changes affect weather conditions and what are the …

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    • Videos of What Is a Barometer

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    • National Geographic Society
      https://www.nationalgeographic.org/encyclopedia/barometer

      Barometer - National Geographic Society

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    • Explain that Stuff
      https://www.explainthatstuff.com/baro…

      How do barometers work? - Explain that Stuff

      WEB3 Jul 2022 · Barometers are instruments that measure the weight of air pressing down on a column of liquid or a spring. Learn how they work, what air pressure means, and how it affects the weather.

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    • BYJU'S
      https://byjus.com/physics/barometer

      Barometer - Definition, Working, How to make a …

      WEBA barometer is an instrument that measures air pressure as it varies with distance above or below sea level. Learn about the two types of barometers (mercury and aneroid), how they work, and how to make a …

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    • ThoughtCo
      https://www.thoughtco.com/definition-of …

      Barometer Definition and Function (Science) - ThoughtCo

      WEB5 Jan 2018 · A barometer is a device that measures atmospheric pressure, which can be used to forecast weather. Learn about the invention, types, and uses of barometers, and how they relate to weather changes.

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    • ThoughtCo
      https://www.thoughtco.com/how-barometers-measure-air-pressure-…

      How Barometers Measure Air Pressure - ThoughtCo

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    • Mini Physics
      https://www.miniphysics.com/barometer…

      Barometer & Atmospheric Pressure | Mini Physics

      WEBLearn what a barometer is and how it measures atmospheric pressure, which is the weight of the air above a certain point. Explore the factors that affect atmospheric pressure and the common units of measurement.

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