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Fingertips Can Detect Single Atom Differences

The touch sensitivity of finger skin could not be improved. There's a purpose for fingerprints, too.

Evolution Teacher Promotes Gentler Way to Propagandize Students

Flummoxed by stable numbers of students not accepting Darwin, a teacher tries a gentler nudge.

Let Your Mind Marvel at Its Brain

Amazing processes go on in the physical brain that most of our minds do not even know about.
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