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  2. Tree height measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_height_measurement

    American Forests, for example, uses a formula to calculate Big Tree Points as part of their Big Tree Program [3] that awards a tree 1 point for each foot of height, 1 point for each inch (2.54 cm) of girth, and ¼ point for each foot of crown spread. The tree whose point total is the highest for that species is crowned as the champion in their ...

  3. Rake angle - Wikipedia

    en.wikipedia.org/wiki/Rake_angle

    In machining, the rake angle is a parameter used in various cutting processes, describing the angle of the cutting face relative to the workpiece. There are three types of rake angles: positive, zero or neutral, and negative. Positive rake: A tool has a positive rake when the face of the cutting tool slopes away from the cutting edge at inner side.

  4. Tree girth measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_girth_measurement

    American Forests, for example, uses a formula to calculate Big Tree Points as part of their Big Tree Program [3] that awards a tree 1 point for each foot of height, 1 point for each inch of girth, and ¼ point for each foot of average crown spread. The tree whose point total is the highest for that species is crowned as the champion in their ...

  5. Square (tool) - Wikipedia

    en.wikipedia.org/wiki/Square_(tool)

    Speed square, or rafter square, or rafter angle square, or triangle square, or layout square A speed square is a triangular carpenters square combining functions of the combination square, try square, and framing square into one. It can be used to calculate and mark angles, to suspend a plumb bob, and as a fence for a circular saw. [21] [22] [23]

  6. Cut Precise Woodworking Angles with These Expert ... - AOL

    www.aol.com/experts-recommend-5-miter-saws...

    20V MAX 7-1/4-Inch Miter Saw. Featuring built-in carrying handles and a convenient, compact size, miter saws don’t get much more portable than this 30-pound model from DeWalt.

  7. Tree volume measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_volume_measurement

    The President Tree (Sequoiadendron giganteum) [3] was measured in 2012 to have a trunk volume of 54,000 cubic feet (1,500 m 3) of wood and a branch volume of 9,000 cubic feet (250 m 3) of wood in the branches. In this giant tree the branch volume was only 16.7% that of the trunk volume.

  8. Speed square - Wikipedia

    en.wikipedia.org/wiki/Speed_square

    Common lines made using a speed square include perpendicular cut marks and Angles definition of an angle for roofs, stairways, and decks. The tool uses a 0° reference. This means when a board is squared off the tool reads 0°. The angle derived is actually a complementary angle, for example a 22.5° angle is actually 67.5°. The sum of the ...

  9. Hankinson's equation - Wikipedia

    en.wikipedia.org/wiki/Hankinson's_equation

    Hankinson's equation (also called Hankinson's formula or Hankinson's criterion) [1] is a mathematical relationship for predicting the off-axis uniaxial compressive strength of wood. The formula can also be used to compute the fiber stress or the stress wave velocity at the elastic limit as a function of grain angle in wood.

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