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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.
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
For example, if a barometer located at sea level and under fair weather conditions is moved to an altitude of 1,000 feet (305 m), about 1 inch of mercury (~35 hPa) must be added on to the reading. The barometer readings at the two locations should be the same if there are negligible changes in time, horizontal distance, and temperature.
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 ...
Barometer Clock (Boulle) by André-Charles Boulle is a late seventeenth-century French clock created out of ebony, turtle shell, brass, gilt bronze, and enamel. The clock case is decorated on all sides and was intended as either a centerpiece or for display on a mantel in front of a mirror. [ 1 ]
A barometer measures atmospheric pressure, or the pressure exerted by the weight of the Earth's atmosphere above a particular location. An anemometer measures the wind speed and the direction the wind is blowing from at the site where it is mounted.
The Doomsday Clock was created in 1947 by members of the journal Bulletin of the Atomic Scientists as a dramatic metaphor that symbolises just how close humanity is to the end of civilization.
The digital time is also displayed through an LCD watch with analogue hands located on the upper left corner of the dashboard. Timex Expedition WS4 in barometric chart mode. The trend of the barometric chart is negative, indicating decreasing atmospheric pressure, thus the cloud icon, just above the temperature display, indicates deteriorating ...