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  2. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    Maximum diameter of Thiomargarita namibiensis, the second largest bacterium ever discovered 10 −3: 1 millimeter ~5 mm Length of an average flea is 1–10 mm (usually <5 mm) [27] 2.54 mm One-tenth inch; distance between pins in DIP (dual-inline-package) electronic components 5.70 mm Diameter of the projectile in 5.56×45mm NATO ammunition 10 −2

  3. Tree girth measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_girth_measurement

    The Tule tree has a diameter of 38 feet 1.4 inches (1,161.8 cm) as measured by tape wrap, but because of its irregularity a cross-sectional wood area expressed as a circle gave an effective diameter of only 30 feet 9 inches (937 cm). The base of the tree was mapped in three dimensions using a frame mapping technique.

  4. Organ flue pipe scaling - Wikipedia

    en.wikipedia.org/wiki/Organ_flue_pipe_scaling

    Scaling is the ratio of an organ pipe's diameter to its length. The scaling of a pipe is a major influence on its timbre. Reed pipes are scaled according to different formulas than for flue pipes. In general, the larger the diameter of a given pipe at a given pitch, the fuller and more fundamental the sound becomes.

  5. Units of textile measurement - Wikipedia

    en.wikipedia.org/wiki/Units_of_textile_measurement

    Ends per inch (EPI or e.p.i.) is the number of warp threads per inch of woven fabric. [12] [22] In general, the higher the ends per inch, the finer the fabric is. Ends per inch is very commonly used by weavers who must use the number of ends per inch in order to pick the right reed to weave with. The number of ends per inch varies on the ...

  6. Bra size - Wikipedia

    en.wikipedia.org/wiki/Bra_size

    The difference in chest circumference between the cup sizes is always one inch, or 2.54 cm. The difference between 2 band sizes is 2 inches or 5.08 cm. Leading brands and manufacturers including Panache, Bestform, Gossard, Freya, Curvy Kate , Bravissimo and Fantasie, which use the British standard band sizes (where underbust measurement equals ...

  7. Turning radius - Wikipedia

    en.wikipedia.org/wiki/Turning_radius

    Diagram showing the path of a driver performing a U-turn.A vehicle with a smaller turning diameter will be able to perform a sharper U-turn. The turning radius (alternatively, turning diameter or turning circle) of a vehicle defines the minimum dimension (typically the radius or diameter) of available space required for that vehicle to make a semi-circular U-turn without skidding.

  8. Pi - Wikipedia

    en.wikipedia.org/wiki/Pi

    The number π (/ p aɪ / ⓘ; spelled out as "pi") is a mathematical constant, approximately equal to 3.14159, that is the ratio of a circle's circumference to its diameter.It appears in many formulae across mathematics and physics, and some of these formulae are commonly used for defining π, to avoid relying on the definition of the length of a curve.

  9. Area - Wikipedia

    en.wikipedia.org/wiki/Area

    The can also be rewritten as , where d is the diameter. Prism : 2 B + P h {\displaystyle 2B+Ph} , where B is the area of a base, P is the perimeter of a base, and h is the height of the prism. pyramid : B + P L 2 {\displaystyle B+{\frac {PL}{2}}} , where B is the area of the base, P is the perimeter of the base, and L is the length of the slant.