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Veritasium
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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.
How do chameleons change colour
This video shows how collaboration between physicists and biologists has solved the mystery of how a chameleon changes its colour. The colour changes are due to light diffraction and interference patterns. Nano-sized particles in the chameleon’s skin can be distributed so selectively reflect different wavelengths of light. These wavelengths will then interfere with reflected light from the surface pigments.
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