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  2. Barometer - Wikipedia

    en.wikipedia.org/wiki/Barometer

    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.

  3. Barograph - Wikipedia

    en.wikipedia.org/wiki/Barograph

    The changing height of the mercury in the barometer was recorded on a continuously moving photosensitive surface. [5] By 1847, a sophisticated temperature-compensation mechanism was also employed. Ronalds’ barograph was utilised by the UK Meteorological Office for many years to assist in weather forecasting and the machines were supplied to ...

  4. Bert Bolle Barometer - Wikipedia

    en.wikipedia.org/wiki/Bert_Bolle_Barometer

    The Bert Bolle Barometer is a large water barometer. At over 12.5 metres tall, it is recognized as the largest barometer in the world by The International Guinness Book of Records . [ 1 ] The instrument was created in 1985 in the Netherlands; in 2007 it was reinstalled in the new Visitor Centre of Denmark, Western Australia and was removed from ...

  5. Barometric formula - Wikipedia

    en.wikipedia.org/wiki/Barometric_formula

    Pressure as a function of the height above the sea level. There are two equations for computing pressure as a function of height. The first equation is applicable to the atmospheric layers in which the temperature is assumed to vary with altitude at a non null lapse rate of : = [,, ()] ′, The second equation is applicable to the atmospheric layers in which the temperature is assumed not to ...

  6. List of weather instruments - Wikipedia

    en.wikipedia.org/wiki/List_of_weather_instruments

    Weather stations typically have these following instruments: . Thermometer for measuring air and sea surface temperature; Barometer for measuring atmospheric pressure; Hygrometer for measuring humidity

  7. Tempest prognosticator - Wikipedia

    en.wikipedia.org/wiki/Tempest_prognosticator

    The tempest prognosticator, also known as the leech barometer, is a 19th-century invention by George Merryweather in which leeches are used in a barometer. The twelve leeches are kept in small bottles inside the device; when they become agitated by an approaching storm, they attempt to climb out of the bottles and trigger a small hammer which ...

  8. Barometer question - Wikipedia

    en.wikipedia.org/wiki/Barometer_question

    The barometer question is an example of an incorrectly designed examination question demonstrating functional fixedness that causes a moral dilemma for the examiner.

  9. Barometric light - Wikipedia

    en.wikipedia.org/wiki/Barometric_light

    Barometric light was first observed in 1675 by the French astronomer Jean Picard: [4] "Towards the year 1676, Monsieur Picard was transporting his barometer from the Observatory to Port Saint Michel during the night, [when] he noticed a light in a part of the tube where the mercury was moving; this phenomenon having surprised him, he immediately reported it to the sçavans, ... "[5] [6] The ...

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