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Why We Only See Certain Colors

Published on Nov 19, 2015

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PRESENTATION OUTLINE

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  • Photoreceptors tell our brains about the wavelength
  • Two types of photo receptors: rods/cones

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  • Rod- see in dim light only show black an white
  • Cones- 3 types: one for each main color: red/G/B

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  • When light enters our eyes, cells tell our brains about the color.
  • Cells called photons.

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  • The different photons have different wavelengths.
  • Cones are not as sensitive as rods, so they only work in bright light.

WHY DO WE ONLY SEE CERTAIN COLORS OF LIGHT

SAVANAH, HUNTER, SKY, TYLER, KATIE, JOSHUA K