This week, fill up a crossword on the basis of a numerical key, and hunt for a number with two properties The last time we had a numerical word puzzle of this kind, a number of readers wrote back to ...

Only the "genius" top two per cent of people can crack this "impossible" problem, according to a maths professor. A Facebook user, known as "Professor_1o1math" on the social media site, shared the ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The waning crescent Moon rising in a wide conjunction with ...

A dentist claims he has cracked the Vitruvian Man (Picture: Getty) It is one of the most famous – and mystifying – drawings in human history. Leonardo da Vinci’s Vitruvian Man was the attempt by the ...

Abstract: We examine a multistate logic computation scheme based on nanomagnets with configurational anisotropy (CA). We present a case study of a structure comprising a thin equilateral ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Spring is almost here in the Northern Hemisphere. With the ...

Mathematicians have proven that Henry Dudeney’s 1907 four-piece dissection of an equilateral triangle into a square is optimal. Using matching diagrams, researchers from JAIST and MIT showed that no ...

Lagrangian points (L points) are five specific regions within a two-body orbital system where gravitational forces achieve a state of balance, theoretically allowing a third body to maintain its ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. What is a triangle? We all know that a triangle is a three-sided shape — 1, 2, 3 sides. A triangle also ...

In two dimensions, it’s the Reuleaux triangle: an equilateral triangle with curved arcs connecting each corner, creating a shape with a constant width but a smaller area than a circle. Now, a team of ...