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  2. Biltmore stick - Wikipedia

    en.wikipedia.org/wiki/Biltmore_stick

    It looks much like an everyday yardstick. With practice a Biltmore stick is considered to be exceptionally accurate, often within half an inch on diameters. Some foresters use the tool regularly, however, many prefer to use more accurate tools such as a diameter tape to measure diameter at breast height (DBH) and a clinometer to measure height ...

  3. Hypsometer - Wikipedia

    en.wikipedia.org/wiki/Hypsometer

    Calculation from this value will eventually give the height h, from the eye-line of the observer to the top of the object whose height is to be determined. Similarly as in step 2 of the illustration, a sighting is taken on the base of the object whose height is to be determined, and the reading on the horizontal scale, d', recorded.

  4. Stadimeter - Wikipedia

    en.wikipedia.org/wiki/Stadimeter

    A stadimeter is an optical device for estimating the range to an object of known height by measuring the angle between the top and bottom of the object as observed at the device. It is similar to a sextant , in that the device is using mirrors to measure an angle between two objects but differs in that one dials in the height of the object.

  5. Tree height measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_height_measurement

    Tree heights can be directly measured using a pole for shorter trees, or by climbing a larger tree and measuring the height via a long measuring tape. Pole measurements [30] [31] work well for small trees eliminating the need for trigonometry involving multiple triangles, and for trees shorter than the minimal range for laser rangefinders ...

  6. Indicator (distance amplifying instrument) - Wikipedia

    en.wikipedia.org/wiki/Indicator_(distance...

    Ideal test indicator pushed. Prior to modern geared dial mechanisms, test indicators using a single lever or systems of levers were common. The range and precision of these devices were generally inferior to modern dial type units, with a range of 10/1000 inch to 30/1000 inch, and precision of 1/1000 inch being typical.

  7. Inclinometer - Wikipedia

    en.wikipedia.org/wiki/Inclinometer

    Measuring the slope angle of a tape or chain during distance measurement. Measuring the height of a building, tree, or other feature using a vertical angle and a distance (determined by taping or pacing), using trigonometry. Measuring the angle of drilling in well logging. Measuring the list of a ship in still water and the roll in rough water.

  8. New study reveals what Americans perceive as ideal weight - AOL

    www.aol.com/study-reveals-americans-perceive...

    Weight, Height, and BMI. Body mass index, or BMI, is a measurement used to assess a person's body weight in relation to how tall they are. It's calculated by dividing a person's weight in ...

  9. Tree volume measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_volume_measurement

    This height is noted and the diameter of the tree is measured at that point. The climber then rappels down the tree measuring the trunk circumference by tape wrap at different heights with the height of each measurement referenced to the fixed tape running down the trunk. [citation needed] Direct trunk measurements are obtained by a tree climber.