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Rainbow

• 6/5/21 12:40 pm
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Dracoblade
Lvl 57 • Grandmaster Dragonborn Dragon
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  • A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky.
  • It takes the form of a multicoloured circular arc.
  • Rainbows caused by sunlight always appear in the section of sky directly opposite the Sun.
  • Rainbows can be full circles.
  • However, the observer normally sees only an arc formed by illuminated droplets above the ground, and centered on a line from the sun to the observer's eye.
  • In a primary rainbow, the arc shows red on the outer part and violet on the inner side.
  • This rainbow is caused by light being refracted when entering a droplet of water, then reflected inside on the back of the droplet and refracted again when leaving it.
  • In a double rainbow, a second arc is seen outside the primary arc, and has the order of its colours reversed, with red on the inner side of the arc.
  • This is caused by the light being reflected twice on the inside of the droplet before leaving it.
Source: Rainbow - Wikipedia

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