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  2. Sprite (lightning) - Wikipedia

    en.wikipedia.org/wiki/Sprite_(lightning)

    When a sufficiently large positive lightning strike carries charges to the ground, the cloud top is left with a strongly negative net charge. This can be modeled as a quasi-static electric dipole and for less than 10 milliseconds a strong electric field is generated in the region above the thunderstorm.

  3. Lightning - Wikipedia

    en.wikipedia.org/wiki/Lightning

    Thunder is heard as a rolling, gradually dissipating rumble because the sound from different portions of a long stroke arrives at slightly different times. [97] Lightning at a sufficient distance may be seen and not heard; there is data that a lightning storm can be seen at over 160 km (100 miles) whereas the thunder travels about 32 km (20 miles).

  4. Electric blue (color) - Wikipedia

    en.wikipedia.org/wiki/Electric_blue_(color)

    Electric blue is a color whose definition varies but is often considered close to cyan, and which is a representation of the color of lightning, an electric spark, and the color of ionized argon gas; it was originally named after the ionized air glow produced during electrical discharges, though its meaning has broadened to include shades of blue that are metaphorically "electric" by virtue of ...

  5. Ionized-air glow - Wikipedia

    en.wikipedia.org/wiki/Ionized-air_glow

    A violet hue can occur when the spectrum contains emission lines of atomic hydrogen. This may happen when the air contains high amount of water, e.g. with lightnings in low altitudes passing through rain thunderstorms. Water vapor and small water droplets ionize and dissociate easier than large droplets, therefore have higher impact on color.

  6. Light characteristic - Wikipedia

    en.wikipedia.org/wiki/Light_characteristic

    A Morse code light is light in which appearances of light of two clearly different durations (dots and dashes) are grouped to represent a character or characters in the Morse Code. For example, "Mo(A)" is a light in which in each period light is shown for a short period (dot) followed by a long period (dash), the Morse Code for "A".

  7. It Takes The Entire Rainbow Of Colors To Make The Sky Blue ...

    www.aol.com/takes-entire-rainbow-colors-sky...

    It takes all the colors of the rainbow for us to see it that way. It happens because of something called the Rayleigh effect, or Rayleigh scattering, named after a British scientist who first ...

  8. 5 ways you can be struck by lightning ... and only 1 ... - AOL

    www.aol.com/weather/5-ways-struck-lightning-only...

    Though some theorize direct strikes may be more deadly than other ways of being struck, Cooper said there's no data about lightning deaths and injuries from different kinds of lightning strikes to ...

  9. Metamerism (color) - Wikipedia

    en.wikipedia.org/wiki/Metamerism_(color)

    A classic example is the automobile industry: the colorants used for interior fabrics, plastics and paints may be chosen to provide a good color match under a cool white fluorescent source, but the matches can disappear under different light sources (e.g. daylight or tungsten source). Furthermore, because of the differences in colorants ...