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Institute of Physics
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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.
Seeing Pink Elephants
This resource will let students see pink elephants.
When the human eye is exposed to one colour for a relatively long period of time, the cone cells will become saturated with that colour. Once the eye is exposed to a broad range of colours again, the brain will pick up weaker signals from that colour and an image with that colour missing will be formed.
The PowerPoint file contains an image of a green elephant to show students, whilst the teaching notes provide the explanation.
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