• Thumbnail for Rod (optical phenomenon)
    Subsequent investigations proved that the appearance of flying rods on video was an optical illusion created by the slower recording speed of the camera...
    5 KB (599 words) - 22:20, 16 June 2025
  • Thumbnail for Optical phenomenon
    solar eclipse, a phenomenon that serves as evidence for the curvature of space as predicted by the theory of relativity. Atmospheric optical phenomena include:...
    8 KB (939 words) - 03:42, 22 February 2025
  • Thumbnail for Halo (optical phenomenon)
    halo (from Ancient Greek ἅλως (hálōs) 'threshing floor, disk') is an optical phenomenon produced by light (typically from the Sun or Moon) interacting with...
    27 KB (3,114 words) - 02:48, 19 June 2025
  • up rod or Rod in Wiktionary, the free dictionary. Look up ród, röd, rød, or roð in Wiktionary, the free dictionary. Rod, Ród, Rőd, Rød, Röd, ROD, or...
    3 KB (556 words) - 15:14, 24 November 2024
  • Thumbnail for Backscatter (photography)
    photography, backscatter (also called near-camera reflection) is an optical phenomenon resulting in typically circular artifacts on an image, due to the...
    9 KB (878 words) - 03:56, 21 July 2025
  • Thumbnail for Jesus "Jose" Escamilla
    in the film industries, have suggested that RODS are visual artifacts. Please see Rod (optical phenomenon) for more information. July 3, 1994 - Roswell...
    26 KB (2,721 words) - 06:06, 9 July 2025
  • Thumbnail for Optical fiber
    An optical fiber, or optical fibre, is a flexible glass or plastic fiber that can transmit light from one end to the other. Such fibers find wide usage...
    102 KB (12,387 words) - 14:38, 21 July 2025
  • Thumbnail for Optical rotation
    magnetic field. However, this is a distinct phenomenon and is not classified as "optical activity". Optical activity is reciprocal, i.e. it is the same...
    39 KB (5,156 words) - 14:08, 24 May 2025
  • Thumbnail for Eigengrau
    used in recent scientific publications. Common scientific terms for the phenomenon include "visual noise" or "background adaptation". These terms arise due...
    6 KB (618 words) - 23:03, 19 June 2025
  • Thumbnail for Optics
    Optics (redirect from Optical)
    reflected. This phenomenon is called total internal reflection and allows for fibre optics technology. As light travels down an optical fibre, it undergoes...
    109 KB (13,060 words) - 16:17, 4 July 2025
  • as the magneto-optic Faraday effect (MOFE), is a physical magneto-optical phenomenon. The Faraday effect causes a polarization rotation which is proportional...
    26 KB (3,224 words) - 09:10, 19 July 2025
  • Thumbnail for Optical microcavity
    An optical microcavity or microresonator is a structure formed by reflecting faces on the two sides of a spacer layer or optical medium, or by wrapping...
    10 KB (1,210 words) - 21:54, 26 May 2025
  • Thumbnail for St. Elmo's fire
    witchfire or witch's fire) is a weather phenomenon in which luminous plasma is created by a corona discharge from a rod-like object such as a mast, spire,...
    47 KB (6,055 words) - 08:31, 21 July 2025
  • Thumbnail for Birefringence
    of the phenomenon. The simplest type of birefringence is described as uniaxial, meaning that there is a single direction governing the optical anisotropy...
    60 KB (6,595 words) - 19:25, 24 May 2025
  • Thumbnail for Ball lightning
    after the ordinary lightning struck the ground, up to the optical decay of the phenomenon. Additional video was recorded by a high-speed (3000 frames/sec)...
    78 KB (9,381 words) - 05:48, 13 July 2025
  • Thumbnail for Visible spectrum
    the Earth's atmosphere via the "optical window" region of the electromagnetic spectrum. An example of this phenomenon is when clean air scatters blue...
    37 KB (4,038 words) - 05:46, 31 May 2025
  • Thumbnail for Laser
    Laser (redirect from Optical maser)
    A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word...
    126 KB (14,006 words) - 03:18, 18 July 2025
  • Thumbnail for Purkinje effect
    The Purkinje effect or Purkinje phenomenon (Czech: [ˈpurkɪɲɛ] ; sometimes called the Purkinje shift, often pronounced /pərˈkɪndʒi/) is the tendency for...
    11 KB (1,328 words) - 23:07, 9 July 2025
  • Thumbnail for Tangent arc
    Tangent arc (category Atmospheric optical phenomena)
    atmospheric optical phenomenon, which appears above and below the observed Sun or Moon, tangent to the 22° halo. To produce these arcs, rod-shaped hexagonal...
    5 KB (472 words) - 20:00, 3 January 2025
  • Thumbnail for 1561 celestial phenomenon over Nuremberg
    extraterrestrial spacecraft. Skeptics assert that the phenomenon was likely to have been another atmospheric phenomenon, such as a sun dog, although the print does...
    9 KB (1,127 words) - 19:16, 7 July 2025
  • Thumbnail for Thermophoresis
    thermodiffusion, the Soret effect, or the Ludwig–Soret effect) is a phenomenon observed in mixtures of mobile particles where the different particle...
    14 KB (1,629 words) - 02:48, 2 June 2025
  • Thumbnail for Rayleigh scattering
    Rayleigh scattering (category Atmospheric optical phenomena)
    scattered much more than a red color as light propagates through air). The phenomenon is named after the 19th-century British physicist Lord Rayleigh (John...
    23 KB (2,844 words) - 02:39, 4 July 2025
  • Thumbnail for Waveguide
    Common types of waveguides include acoustic waveguides which direct sound, optical waveguides which direct light, and radio-frequency waveguides which direct...
    29 KB (3,435 words) - 22:37, 18 July 2025
  • Thumbnail for Rainbow
    Rainbow (category Atmospheric optical phenomena)
    A rainbow is an optical phenomenon caused by refraction, internal reflection and dispersion of light in water droplets resulting in a continuous spectrum...
    82 KB (9,277 words) - 08:57, 13 July 2025
  • Thumbnail for Liquid crystal
    Liquid crystal (category Optical materials)
    There are many types of LC phases, which can be distinguished by their optical properties (such as textures). The contrasting textures arise due to molecules...
    94 KB (11,513 words) - 20:33, 21 July 2025
  • Thumbnail for Ames window
    Ames window (category Optical illusions)
    continuously in one section but instead is misperceived to be oscillating. This phenomenon was discovered by Adelbert Ames, Jr. in 1947. During the 1960s, the concept...
    4 KB (479 words) - 23:25, 14 July 2025
  • preferred material for making Globar is silicon carbide that is shaped as rods or arches of various sizes. When inserted into a circuit that provides it...
    2 KB (224 words) - 23:44, 31 May 2025
  • Thumbnail for Valence and conduction bands
    shift to higher energy levels under this radius limit due to discrete optical transitions when semiconductor nanocrystal is restricted by the exciton...
    6 KB (701 words) - 22:00, 18 July 2025
  • Thumbnail for Retina
    known as the blue field entoptic phenomenon (or Scheerer's phenomenon). Between the ganglion-cell layer and the rods and cones are two layers of neuropils...
    84 KB (9,305 words) - 18:28, 16 July 2025
  • Thumbnail for Length contraction
    Length contraction is the phenomenon that a moving object's length is measured to be shorter than its proper length, which is the length as measured in...
    40 KB (5,073 words) - 16:50, 10 May 2025