Sunlight

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Sunlight

Sunlight (/ˈsʌnlaɪt/) is the portion of the electromagnetic radiation given off by the Sun, in particular infrared, visible, and ultraviolet light. On Earth, sunlight is filtered through the Earth's atmosphere, and solar radiation is obvious as daylight when the Sun is above the horizon.

Etymology

The term "sunlight" is derived from the Old English sunne ("sun") and liht ("light").

Related Terms

  • Solar Energy: The radiant energy emitted by the sun, particularly electromagnetic energy.
  • Photosynthesis: The process by which green plants and some other organisms use sunlight to synthesize foods with the aid of chlorophyll pigments.
  • Vitamin D: A group of vitamins that are synthesized in the skin in response to the exposure of the body to sunlight.
  • Ultraviolet: A type of electromagnetic radiation that comes from the sun and can have health effects on living organisms.
  • Infrared: A type of electromagnetic radiation that is emitted by the sun, felt as heat.
  • Visible Spectrum: The portion of the electromagnetic spectrum that is visible to the human eye, and is responsible for the colors we see.

See Also

External links

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