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The Blue Illusion: Nature's Microscopic Mirrors

Science & discovery

The Blue Illusion: Nature's Microscopic Mirrors

11 min

While the sky and ocean are blue, almost no animals can actually produce blue pigment. We examine the physics of structural color and why nature prefers to trick the eye with microscopic mirrors rather than making blue ink.

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Show notes

Exploration of why blue pigment is nearly non-existent in animals.

Deep dive into the physics of thin-film interference and Rayleigh scattering.

The story of the Obrina Olivewing, the rare butterfly with true blue pigment.

How the Blue Morpho butterfly uses 'microscopic Christmas trees' to reflect light.

Why structural color is more durable than chemical pigments over millions of years.

In this episode

  1. 1Intro1 min
  2. 2The Rarity of True Blue2 min
  3. 3The Physics of the Mirror2 min
  4. 4Case Study: The Blue Morpho and the Blue Jay3 min
  5. 5The Evolutionary Advantage of Physics3 min
  6. 6Outro1 min

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The Blue Illusion: Nature's Microscopic Mirrors — Fylom