Unlocking Science / Official Clip / Seeing Isn't Believing 

When placing a stirring rod in a beaker, why does it appear to bend? In this episode, Mr. P. and Dr. Danny Faulkner discuss how "Seeing Isn't Believing" and how our brains can be tricked sometimes when we look at the world around us. The eyes are complex and Mr. P. explains the parts of the eye and how they process light waves that sends an electrical signal to the brain. Learn the difference between an optical illusion and how the refraction of light can alter what we think we see.
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