Interesting Fact about Flowers - Purkinje Effect - Coma Niddy University

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Which is brighter? The red of a rose or the green of it’s leaves? Depending on the time of day this answer may change. Flowers can teach us about the physiology of our eyes. Explore with me as we learn about the Purkinje Effect.

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PBS Digital Studios

Take a look at my new video. It puts a twist on Valentine’s Day.

In 1819 Czech Physiologist Jan Evangelista Purkyne noticed that in daylight red flowers tend to stand out from their green leaves. He then noticed that the green leaves stood out more in low light situations. Purkyne’s simple observation of flowers led to an important discovery about human vision.

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