A Moment of Science
If your eyesight is good, you probably think everything you see is always in sharp focus, like a photograph; this isn't the case.
You know that dictionary game in which someone chooses an unusual word and everyone makes up a definition for it. Well, I’ve got a good word for you. Strabismus. Learn more on this Moment of Science.
What's the deal with Mona Lisa's smile? Find out on this Moment of Science.
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