Tying the strongest fishing knot isn’t only about the knot itself. The line you choose matters every bit as much, and thanks to remarkably advancements in the recent decades, you have choices when it ...

Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

Q I am new to wearing ties. I know there are different kinds of tie knots (I see knotting directions for three), but I don't know if any are more right with certain clothes than with others. A You are ...

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We are deeply intuitively familiar with our everyday physical world, so it was perhaps a bit of a surprise when researchers discovered a blind spot in our intuitive physical reasoning: it seems humans ...