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What Is Wrong?

Do you get tired of seeing published photos and articles that are filled with appalling mistakes? On these pages we thought we'd turn some of these mistakes into a little game. Study the picture, and then answer the question. If your guess is incorrect, you can continue guessing, or click on "View answer" to see the solution.

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Understanding Coronavirus Spread

A Question and Answer session with Professor Puzzler about the math behind infection spread.

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Reviews and book lists - books we love!
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