sense organ

Join the author in an exciting narrative about the Gut, a small but amazing organ that does so many things that it is called the second brain. From digesting anything that is put in it to controlling feelings and emotions, the Gut is a Jack of all trades, and a master in every one of them.
 

Today, glasses help millions of people with poor vision be able to see clearly. But how? Andrew Bastawrous and Clare Gilbert help unravel the answer by explaining refraction — the ability of a transparent medium, like glass, water, or the eye, to change the direction of light passing through it.

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