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  2. Wave-making resistance - Wikipedia

    en.wikipedia.org/wiki/Wave-making_resistance

    When the vessel exceeds a "speed–length ratio" (speed in knots divided by square root of length in feet) of 0.94, it starts to outrun most of its bow wave, the hull actually settles slightly in the water as it is now only supported by two wave peaks. As the vessel exceeds a speed-length ratio of 1.34, the wavelength is now longer than the ...

  3. Square number - Wikipedia

    en.wikipedia.org/wiki/Square_number

    The sum of the first odd integers, beginning with one, is a perfect square: 1, 1 + 3, 1 + 3 + 5, 1 + 3 + 5 + 7, etc. This explains Galileo's law of odd numbers: if a body falling from rest covers one unit of distance in the first arbitrary time interval, it covers 3, 5, 7, etc., units of distance in subsequent time intervals of the same length.

  4. id Tech 3 - Wikipedia

    en.wikipedia.org/wiki/Id_Tech_3

    id Tech 4 was derived from id Tech 3, as was Infinity Ward's IW engine, used in Call of Duty 2 onward. At QuakeCon 2005, John Carmack announced that the id Tech 3 source code would be released under the GNU General Public License v2.0 or later, and it was released on August 19, 2005. [1] It was originally distributed via FTP, and later moved to ...

  5. Tree crown measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_crown_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 ⁠ 1 / 4 ⁠ 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 ...

  6. Reference materials for stable isotope analysis - Wikipedia

    en.wikipedia.org/wiki/Reference_materials_for...

    The δ values and absolute isotope ratios of common reference materials are summarized in Table 1 and described in more detail below. Alternative values for the absolute isotopic ratios of reference materials, differing only modestly from those in Table 1, are presented in Table 2.5 of Sharp (2007) [1] (a text freely available online), as well as Table 1 of the 1993 IAEA report on isotopic ...

  7. Hayward, Wisconsin - Wikipedia

    en.wikipedia.org/wiki/Hayward,_Wisconsin

    According to the United States Census Bureau, the city has an area of 3.36 square miles (8.70 km 2), of which 0.23 sq mi (0.60 km 2) is covered by water. [ 25 ] Hayward is 71 miles southeast of Superior , 27 miles northeast of Spooner , about 107 miles north of Eau Claire , and 57 miles southwest of Ashland .

  8. Armillaria ostoyae - Wikipedia

    en.wikipedia.org/wiki/Armillaria_ostoyae

    A mushroom of this type in the Malheur National Forest in the Strawberry Mountains of eastern Oregon, was found to be the largest fungal colony in the world, spanning an area of 3.5 square miles (2,200 acres; 9.1 km 2). [2] [7] This organism is estimated to be some 8,000 years old [7] [16] and may weigh as much as 35,000 tons. [7]