About 222,000 results
Open links in new tab
  1. Barometer - Wikipedia

    Many measurements of air pressure are used within surface weather analysis to help find surface troughs, pressure systems and frontal boundaries. Barometers and pressure altimeters (the …

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

    Sep 18, 2025 · A barometer is a device used to measure atmospheric pressure. Because atmospheric pressure changes with distance above or below sea level, a barometer can also …

  3. How Is Barometric Pressure Measured and Why? - HowStuffWorks

    Feb 27, 2024 · What Is a Barometer? A barometer is a scientific instrument designed to measure barometric pressure. Barometers as we know them date back to 1643 when the Italian …

  4. Amazon.com: Barometers - Barometers / Thermometers

    Discover Barometers on Amazon.com at a great price. Our Weather Instruments category offers a great selection of Barometers and more. Free Shipping on Prime eligible orders.

  5. What Is A Barometer, How It Works, Where To Place It

    Jun 27, 2025 · A barometer is defined as a meteorological instrument used to measure air pressure in the atmosphere. It forms a crucial part of any weather station and is primarily used …

  6. How Barometers Measure Air Pressure - ThoughtCo

    May 7, 2025 · A barometer is a widely used weather instrument that measures atmospheric pressure (also known as air pressure or barometric pressure) -- the weight of the air in the …

  7. How do barometers work? - Explain that Stuff

    Jul 3, 2022 · Instruments that measure air pressure are called barometers and people have been using them for weather forecasting and scientific research for hundreds of years. Let's take a …

  8. Barometer - National Geographic Society

    Oct 24, 2023 · A barometer measures atmospheric pressure in units of measurement called atmospheres or bars. An atmosphere (atm) is a unit of measurement equal to the average air …

  9. Barometers: What They Do and Why They Matter

    Jul 15, 2024 · A barometer might seem like a simple device, but it plays a crucial role in helping us understand and predict the weather. By measuring air pressure, barometers provide …

  10. BAROMETER Definition & Meaning - Merriam-Webster

    The meaning of BAROMETER is an instrument for determining the pressure of the atmosphere and hence for assisting in forecasting weather and for determining altitude.