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  2. Bolex - Wikipedia

    en.wikipedia.org/wiki/Bolex

    Bolex International SA. Bolex International S. A. is a Swiss manufacturer of motion picture cameras based in Yverdon located in Canton of Vaud, the most notable products of which are in the 16 mm and Super 16 mm formats. Originally Bol, the company was founded in 1925 by Charles Haccius and Jacques Bogopolsky (aka Bolsey or Boolsky), the ...

  3. Line element - Wikipedia

    en.wikipedia.org/wiki/Line_element

    The coordinate-independent definition of the square of the line element ds in an n-dimensional Riemannian or Pseudo Riemannian manifold (in physics usually a Lorentzian manifold) is the "square of the length" of an infinitesimal displacement [2] (in pseudo Riemannian manifolds possibly negative) whose square root should be used for computing curve length: = = (,) where g is the metric tensor ...

  4. Reaction coordinate - Wikipedia

    en.wikipedia.org/wiki/Reaction_coordinate

    In chemistry, a reaction coordinate [1] is an abstract one-dimensional coordinate chosen to represent progress along a reaction pathway. Where possible it is usually a geometric parameter that changes during the conversion of one or more molecular entities , such as bond length or bond angle .

  5. MCS algorithm - Wikipedia

    en.wikipedia.org/wiki/MCS_algorithm

    For mathematical optimization, Multilevel Coordinate Search (MCS) is an efficient [1] algorithm for bound constrained global optimization using function values only. [2] To do so, the n-dimensional search space is represented by a set of non-intersecting hypercubes (boxes). The boxes are then iteratively split along an axis plane according to ...

  6. AOL Mail

    mail.aol.com

    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!

  7. Lode coordinates - Wikipedia

    en.wikipedia.org/wiki/Lode_Coordinates

    Lode coordinates. Surfaces on which the invariants , , are constant. Plotted in principal stress space. The red plane represents a meridional plane and the yellow plane an octahedral plane. Lode coordinates or Haigh–Westergaard coordinates . [1] are a set of tensor invariants that span the space of real, symmetric, second-order, 3-dimensional ...

  8. Spherical coordinate system - Wikipedia

    en.wikipedia.org/wiki/Spherical_coordinate_system

    In mathematics, a spherical coordinate system is a coordinate system for three-dimensional space where the position of a given point in space is specified by three real numbers: the radial distance r along the radial line connecting the point to the fixed point of origin; the polar angle θ between the radial line and a polar axis; and the ...

  9. Selenographic coordinate system - Wikipedia

    en.wikipedia.org/wiki/Selenographic_coordinate...

    The latitude gives the position north or south of the lunar equator. Both of these coordinates are given in degrees. Astronomers defined the fundamental location in the selenographic coordinate system by the small, bowl-shaped satellite crater 'Mösting A' [citation needed]. The coordinates of this crater are defined as: