• Thumbnail for Halo (optical phenomenon)
    optical phenomenon Parhelic circle – Type of halo, an optical phenomenon Parry arc – Optical phenomenon Rainbow – Meteorological phenomenon Subhelic arc – Rare...
    26 KB (3,072 words) - 21:37, 18 August 2024
  • Thumbnail for Rainbow
    items is illegal. Atmospheric optics Circumzenithal arc Circumhorizontal arc Glory (optical phenomenon) Iridescent colours in soap bubbles Sun dog Fog bow...
    79 KB (9,112 words) - 15:36, 16 August 2024
  • Thumbnail for Sun dog
    rays, forming a circle among them. Anthelion Circumhorizontal arc Corona (optical phenomenon) Crown flash Liljequist parhelion Moon dog "American Heritage...
    22 KB (2,641 words) - 06:53, 7 July 2024
  • when a person is lying on his or her back looking upwards. Blue field entoptic phenomenon has the appearance of tiny bright dots moving rapidly along...
    12 KB (1,790 words) - 02:36, 23 November 2023
  • Thumbnail for Optical phenomenon
    Sprite (lightning) Subsun Sun dog Tangent arc Tyndall effect Upper-atmospheric lightning, including red sprites, Blue jets, and ELVES Water sky Dichromatism...
    9 KB (968 words) - 05:58, 24 April 2024
  • Thumbnail for List of natural phenomena
    Sprite (lightning) Subsun Sun dog Tangent arc Tyndall effect Upper-atmospheric lightning, including red sprites, Blue jets, and ELVES Water sky Oceanographic...
    6 KB (534 words) - 20:08, 26 August 2024
  • Thumbnail for Tangent arc
    Tangent arcs are a type of halo, an atmospheric optical phenomenon, which appears above and below the observed Sun or Moon, tangent to the 22° halo. To...
    5 KB (472 words) - 19:43, 16 April 2023
  • Thumbnail for Arc flash
    the phenomenon of the arc blast is sometimes used to extinguish the electric arc by some types of self-blast–chamber circuit breakers. An arc flash...
    28 KB (3,784 words) - 21:14, 26 August 2024
  • Thumbnail for Electric arc
    Humphry Davy discovered the short-pulse electrical arc in 1800. In 1801, he described the phenomenon in a paper published in William Nicholson's Journal...
    27 KB (3,482 words) - 07:19, 29 August 2024
  • Thumbnail for List of atmospheric optical phenomena
    Sprite (lightning) Subsun Sun dog Tangent arc Tyndall effect Upper-atmospheric lightning, including red sprites, Blue jets, and ELVES Water sky "Belt of Venus...
    2 KB (128 words) - 19:40, 18 July 2024