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  2. Atmospheric pressure - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_pressure

    Atmospheric pressure, also known as air pressure or barometric pressure (after the barometer), is the pressure within the atmosphere of Earth. The standard atmosphere (symbol: atm) is a unit of pressure defined as 101,325 Pa (1,013.25 hPa ), which is equivalent to 1,013.25 millibars , [ 1 ] 760 mm Hg , 29.9212 inches Hg , or 14.696 psi . [ 2 ]

  3. Barograph - Wikipedia

    en.wikipedia.org/wiki/Barograph

    A traditional barograph, without its protective case. A barograph is a barometer that records the barometric pressure over time in graphical form. This instrument is also used to make a continuous recording of atmospheric pressure.

  4. List of weather instruments - Wikipedia

    en.wikipedia.org/wiki/List_of_weather_instruments

    Barometer for measuring atmospheric pressure; Hygrometer for measuring humidity; Anemometer for measuring wind speed; Pyranometer for measuring solar radiation; Rain gauge for measuring liquid precipitation over a set period of time; Wind sock for measuring general wind speed and wind direction

  5. List of atmospheric pressure records in Europe - Wikipedia

    en.wikipedia.org/wiki/List_of_atmospheric...

    (A reading of 922.5 mbar (corrected to MSL) was reported from Omagh in Co. Tyrone (Harding 1887) the graduation and calibration of the barometer were not considered satisfactory enough “to quote the reading as trustworthy”, the storm minimum over the Northern Ireland was thought to be close to 924 mbar.)

  6. Barometer - Wikipedia

    en.wikipedia.org/wiki/Barometer

    A barograph is a recording aneroid barometer where the changes in atmospheric pressure are recorded on a paper chart. The principle of the barograph is same as that of the aneroid barometer. Whereas the barometer displays the pressure on a dial, the barograph uses the small movements of the box to transmit by a system of levers to a recording ...

  7. Get the Boydton, VA local weather forecast by the hour and the next 10 days.

  8. Station model - Wikipedia

    en.wikipedia.org/wiki/Station_model

    To the left of the cloud shape in the center of the station model is the symbol depicting present weather. The present weather symbol depicts the current weather which normally is obstructing the visibility at the time of observation.

  9. What is a normal blood pressure reading? - AOL

    www.aol.com/lifestyle/normal-blood-pressure...

    He also recommends having both feet on the ground and yours eyes closed during the reading. Regarding ideal numbers, the famous M.D. says: "Your blood pressure is supposed to be under 140 over 90 ...