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An astronomical instrument is a device for observing, measuring, or recording astronomical data. [ citation needed ] They are used in the scientific field of astronomy , a natural science that studies celestial objects and the phenomena that occur in the cosmos, with the object of explaining their origin and evolution over time.
An inclinometer or clinometer is an instrument used for measuring angles of slope, elevation, or depression of an object with respect to gravity's direction. It is also known as a tilt indicator , tilt sensor , tilt meter , slope alert , slope gauge , gradient meter , gradiometer , level gauge , level meter , declinometer , and pitch & roll ...
Military instruments as a class draw on most of the categories of instrument described throughout this article, such as navigation, astronomy, optics, and imaging, and the kinetics of moving objects. Common abstract themes that unite military instruments are seeing into the distance, seeing in the dark, knowing an object's geographic location ...
However, if they are mounted on a suitable scale the instrument may also be used as an inclinometer to measure angles to the vertical. Ancient Egyptians used a plumb line attached to the top outer part of a tool resembling a letter E ; when placed against a wall, the plumb line would indicate a vertical line.
Well, it recently yielded a fat 6.6%! And better still, its shares seem attractively valued, with a recent forward-looking price-to-earnings (P/E) ratio of 8.7, well below the five-year average of ...
Tiltmeters may be purely mechanical or incorporate vibrating-wire or electrolytic sensors for electronic measurement. A sensitive instrument can detect changes of as little as one arc second. Tiltmeters have a long, diverse history, somewhat parallel to the history of the seismometer. The very first tiltmeter was a long-length stationary pendulum.
Giraffes are known for their peaceful nature and their preference for living together in close family social groups. Although they rarely fight with each other, there are times when two male ...
Ten members of the same family have been killed after a private jet crashed minutes after taking off in southern Brazil on Sunday, Dec. 22. A statement released on the LinkedIn page of business ...