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  2. PCSO Lottery Draw - Wikipedia

    en.wikipedia.org/wiki/PCSO_Lottery_Draw

    March 8, 1995. (1995-03-08) –. present. (present) The PCSO Lottery Draw is the television program that broadcasts the drawing of the nationally- franchised Philippine Charity Sweepstakes Office (PCSO) lotto games in the Philippines. It has been aired daily (except on Christmas Day, New Year's Day, National Election Day, and during the Maundy ...

  3. Four-dimensional space - Wikipedia

    en.wikipedia.org/wiki/Four-dimensional_space

    Four-dimensional space (4D) is the mathematical extension of the concept of three-dimensional space (3D). Three-dimensional space is the simplest possible abstraction of the observation that one needs only three numbers, called dimensions, to describe the sizes or locations of objects in the everyday world.

  4. Lotteries by country - Wikipedia

    en.wikipedia.org/wiki/Lotteries_by_country

    Singapore: Singapore Pools. South Korea: Lotto 6/45, Popcorn, Speeto500, Pension Lottery 520 (generally called 'Bok-Kwon', 복권) Sri Lanka: National Lottery, Development Lottery. Taiwan: Taiwan Lottery. Thailand: "Government Lottery", also called lottery or หวย (huay), which comes from the Chinese word meaning flower.

  5. 4D scanning transmission electron microscopy - Wikipedia

    en.wikipedia.org/wiki/4D_scanning_transmission...

    4D scanning transmission electron microscopy (4D STEM) is a subset of scanning transmission electron microscopy (STEM) which utilizes a pixelated electron detector to capture a convergent beam electron diffraction (CBED) pattern at each scan location. This technique captures a 2 dimensional reciprocal space image associated with each scan point ...

  6. Reflection seismology - Wikipedia

    en.wikipedia.org/wiki/Reflection_seismology

    Reflection seismology (or seismic reflection) is a method of exploration geophysics that uses the principles of seismology to estimate the properties of the Earth 's subsurface from reflected seismic waves. The method requires a controlled seismic source of energy, such as dynamite or Tovex blast, a specialized air gun or a seismic vibrator.

  7. Rotations in 4-dimensional Euclidean space - Wikipedia

    en.wikipedia.org/wiki/Rotations_in_4-dimensional...

    In mathematics, the group of rotations about a fixed point in four-dimensional Euclidean space is denoted SO (4). The name comes from the fact that it is the special orthogonal group of order 4. In this article rotation means rotational displacement. For the sake of uniqueness, rotation angles are assumed to be in the segment [0, π] except ...

  8. Minkowski space - Wikipedia

    en.wikipedia.org/wiki/Minkowski_space

    Hermann Minkowski (1864–1909) found that the theory of special relativity could be best understood as a four-dimensional space, since known as the Minkowski spacetime.. In physics, Minkowski space (or Minkowski spacetime) (/ m ɪ ŋ ˈ k ɔː f s k i,-ˈ k ɒ f-/ [1]) is the main mathematical description of spacetime in the absence of gravitation.

  9. Spacetime - Wikipedia

    en.wikipedia.org/wiki/Spacetime

    In physics, spacetime, also called the space-time continuum, is a mathematical model that fuses the three dimensions of space and the one dimension of time into a single four-dimensional continuum. Spacetime diagrams are useful in visualizing and understanding relativistic effects, such as how different observers perceive where and when events ...