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How Things Work

Smile for the camera

There you are with that stuffed bear you had when you were two. And here you are with that big fish you caught last summer. Both times someone took your picture. The camera made a copy of the way you…

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Places to Know

THE DISAPPEARING TOE AT SAINT PETER S

> The huge dome of Saint Peter’s Church in Vatican City looks like > this when you look up at it from inside. Your big toe might wear away, too, if people kissed it every day for years and years…

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About Me

My sense of touch

The nerves in my back are farther apart than the nerves in my fingers. My friend touches my back with two unsharpened pencils. Both pencils touch my back at the same time. But I can feel only one…

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