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  2. Penman–Monteith equation - Wikipedia

    en.wikipedia.org/wiki/Penman–Monteith_equation

    To avoid the inherent complexity of determining stomatal and atmospheric conductance, the Food and Agriculture Organization proposed in 1998 [1] a simplified equation for the reference evapotranspiration ET 0. It is defined as the evapotranpiration for "[an] hypothetical reference crop with an assumed crop height of 0.12 m, a fixed surface ...

  3. Wilks coefficient - Wikipedia

    en.wikipedia.org/wiki/Wilks_Coefficient

    The formula can also be used in team and handicap competitions where the team includes lifters of significantly varying bodyweights. The Wilks formula, like its predecessors (the O'Carroll [ 3 ] and Schwartz [ 4 ] formulas), was set up to address the imbalances whereby lighter lifters tend to have a greater Power-to-weight ratio , with lighter ...

  4. 12 equal temperament - Wikipedia

    en.wikipedia.org/wiki/12_equal_temperament

    12-tone equal temperament chromatic scale on C, one full octave ascending, notated only with sharps. Play ascending and descending ⓘ. 12 equal temperament (12-ET) [a] is the musical system that divides the octave into 12 parts, all of which are equally tempered (equally spaced) on a logarithmic scale, with a ratio equal to the 12th root of 2 (≈ 1.05946).

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  6. Crop coefficient - Wikipedia

    en.wikipedia.org/wiki/Crop_coefficient

    Crop coefficients are properties of plants used in predicting evapotranspiration (ET). The most basic crop coefficient, K c, is simply the ratio of ET observed for the crop studied over that observed for the well calibrated reference crop under the same conditions.

  7. Ephemeris time - Wikipedia

    en.wikipedia.org/wiki/Ephemeris_time

    The unit was redefined in terms of the tropical year at 1900.0 instead of the sidereal year; [12] and the standard second was defined first as 1/31556925.975 of the tropical year at 1900.0, [12] [14] and then as the slightly modified fraction 1/31556925.9747 instead, [15] finally being redefined in 1967/8 in terms of the cesium atomic clock ...

  8. Roark's Formulas for Stress and Strain - Wikipedia

    en.wikipedia.org/wiki/Roark's_Formulas_for_Stress...

    Chapter 1 – Introduction Chapter 2 – Stress and Strain: Important Relationships Chapter 3 – The Behavior of Bodies Under Stress Chapter 4 – Principles and Analytical Methods Chapter 5 – Numerical Methods Chapter 6 – Experimental Methods Chapter 7 – Tension, Compression, Shear, and Combined Stress Chapter 8 – Beams; Flexure of ...

  9. Shapiro orders short-term fix for SEPTA - AOL

    www.aol.com/shapiro-orders-short-term-fix...

    (The Center Square) – At the eleventh hour, Gov. Josh Shapiro said he found extra money for the state’s largest mass transit system in Philadelphia and its suburbs. The governor said Friday ...