This is unbelievable! “In order for our brain to see an image, a chemical in our eye which is sensitive to light must respond as soon as a photon of light strikes it. This type of chemical change is called a photochemical reaction. Photochemical reactions are the basis of how photographic paper works, but the reactions that result in a printed picture are extremely slow compared to the photochemical reactions in our eye. The fastest photographic film requires the...
Read MoreThe Speed of Your Eye!
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