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  2. Crepuscular rays - Wikipedia

    en.wikipedia.org/wiki/Crepuscular_rays

    Crepuscular rays are noticeable when the contrast between light and dark is most obvious. Crepuscular comes from the Latin word crepusculum, meaning "twilight". [2] Crepuscular rays usually appear orange because the path through the atmosphere at dawn and dusk passes through up to 40 times as much air as rays from a high Sun at noon.

  3. Cosmic ray - Wikipedia

    en.wikipedia.org/wiki/Cosmic_ray

    Right image: cosmic ray muon losing considerable energy after passing through the plate as indicated by the increased curvature of the track in a magnetic field. Cosmic rays or astroparticles are high-energy particles or clusters of particles (primarily represented by protons or atomic nuclei) that move through space at nearly the speed of light.

  4. Solar symbol - Wikipedia

    en.wikipedia.org/wiki/Solar_symbol

    The solar disk, crescent Moon and stars as shown on the Nebra sky disk (c. 1600 BC) The basic element of most solar symbols is the circular solar disk. The disk can be modified in various ways, notably by adding rays (found in the Bronze Age in Egyptian depictions of Aten) or a cross.

  5. Sunbeam - Wikipedia

    en.wikipedia.org/wiki/Sunbeam

    Crepuscular rays as seen from Taipei, Taiwan (2018) Crepuscular rays or god rays are sunbeams that originate when the sun is just below the horizon, during twilight hours. [3] Crepuscular rays are noticeable when the contrast between light and dark is most obvious. Crepuscular comes from the Latin word "crepusculum", meaning twilight. [4]

  6. Rose Cross - Wikipedia

    en.wikipedia.org/wiki/Rose_Cross

    The Rose Cross (also called Rose Croix and Rosy Cross) is a symbol largely associated with the legendary Christian Rosenkreuz, a Christian Kabbalist and alchemist said to have been the founder of the Rosicrucian Order. [1] [2] The Rose Cross is a cross with a rose at its centre, which is usually red, golden, or white.

  7. SD Gundam G Generation - Wikipedia

    en.wikipedia.org/wiki/SD_Gundam_G_Generation

    For example, Amuro Ray could pilot XXXG-00W0 Wing Gundam Zero. However, some restrictions still exist, and some machines can only be piloted by characters who belong to certain categories. Other restrictions are plot-based. Like Super Robot Wars, G Generation lets the player recruit certain enemy characters.

  8. Astigmatism (optical systems) - Wikipedia

    en.wikipedia.org/wiki/Astigmatism_(optical_systems)

    Rays propagating in this plane are called sagittal rays. In third-order astigmatism, the tangential rays (in the tangential plane) and sagittal rays (in the sagittal plane) form foci at different distances along the optic axis. These foci are called the tangent focus and sagittal focus, respectively. In the presence of astigmatism, an off-axis ...

  9. Cathode ray - Wikipedia

    en.wikipedia.org/wiki/Cathode_ray

    The Maltese cross has no external electrical connection. Cathode rays are so named because they are emitted by the negative electrode, or cathode , in a vacuum tube. To release electrons into the tube, they first must be detached from the atoms of the cathode.