A strange form of matter called a time crystal has fascinated physicists for about a decade. These systems move in repeating ...

Physicists have watched a quantum fluid do something once thought almost impossible: stop moving. In experiments with ...

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Ciaran O'Hare scribbles symbols using colored markers across his whiteboard like he's trying to solve a crime—or perhaps ...

Discover how to build a simple electromagnetic motor and generator using everyday materials in this hands-on science ...

This puzzle is known as the problem of time, and it remains one of the most persistent obstacles to a unified theory of ...