Time travel is deterministic and locally free, a paper says—resolving an age-old paradox. This follows research observing that the present is not changed by a time-traveling qubit. It’s still not very ...

Jigsaw puzzles help make mathematics learning more active and fun Holidays bring celebration, rest and, for many families, long stretches of indoor time. For some, this means tabletop games quickly ...

Applied mathematics is the application of mathematical techniques to describe real-world systems and solve technologically relevant problems. This can include the mechanics of a moving body, the ...