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  2. Pythagorean theorem - Wikipedia

    en.wikipedia.org/wiki/Pythagorean_theorem

    In mathematics, the Pythagorean theorem or Pythagoras' theorem is a fundamental relation in Euclidean geometry between the three sides of a right triangle.It states that the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares on the other two sides.

  3. Reticulocyte production index - Wikipedia

    en.wikipedia.org/wiki/Reticulocyte_production_index

    The reticulocyte production index (RPI), also called a corrected reticulocyte count (CRC), is a calculated value used in the diagnosis of anemia.This calculation is necessary because the raw reticulocyte count is misleading in anemic patients.

  4. Flat-field correction - Wikipedia

    en.wikipedia.org/wiki/Flat-field_correction

    Flat-field correction (FFC) is a digital imaging technique to mitigate the image detector pixel-to-pixel sensitivity and distortions in the optical path. It is a standard calibration procedure in everything from personal digital cameras to large telescopes.

  5. Ages of consent in the United States - Wikipedia

    en.wikipedia.org/wiki/Ages_of_consent_in_the...

    (2) Engages in sexual contact with another person who is not the actor's spouse, and the actor is employed with the Department of Correction, Department of Community Correction, Department of Human Services, or any city or county jail, and the victim is in the custody of the Department of Correction, Department of Community Correction ...

  6. Periscope - Wikipedia

    en.wikipedia.org/wiki/Periscope

    b Prisms c Observer's eye Principle of the lens periscope. The two periscopes differ in the way they erect the image. The left one uses an erecting prism whereas the right uses an erecting lens and a second image plane. a Objective lens b Field lens c Image erecting lens d Ocular lens e Lens of the observer's eye f Right-angled prism g Image ...

  7. Timoshenko–Ehrenfest beam theory - Wikipedia

    en.wikipedia.org/wiki/Timoshenko–Ehrenfest_beam...

    Orientations of the line perpendicular to the mid-plane of a thick paperback book under bending.. The Timoshenko–Ehrenfest beam theory was developed by Stephen Timoshenko and Paul Ehrenfest [1] [2] [3] early in the 20th century.

  8. Prism (geometry) - Wikipedia

    en.wikipedia.org/wiki/Prism_(geometry)

    An oblique prism is a prism in which the joining edges and faces are not perpendicular to the base faces. Example: a parallelepiped is an oblique prism whose base is a parallelogram, or equivalently a polyhedron with six parallelogram faces. Right Prism. A right prism is a prism in which the joining edges and faces are perpendicular to the base ...

  9. Fresnel equations - Wikipedia

    en.wikipedia.org/wiki/Fresnel_equations

    These formulas [14] [15] [16] are known respectively as Fresnel's sine law and Fresnel's tangent law. [17] Although at normal incidence these expressions reduce to 0/0, one can see that they yield the correct results in the limit as ‍ θ i → 0 .