A deceptively simple optical illusion is challenging internet users to find all the hidden '3's within a seemingly ...

The most famous packing problem concerns spheres. In 1611, the astronomer Johannes Kepler proposed that the densest way to ...

That feeling of being lost while staring at a math problem is something that most students have experienced. When you're having trouble with math, geometry, or word problems, it's easy ...

Play the Fox News daily online crossword puzzle game - free. Solve daily puzzles, learn new words and help strengthen your mind with games.

In this paper a theory of two-dimensional moment invariants for planar geometric figures is presented. A fundamental theorem is established to relate such moment invariants to the well-known algebraic ...

Books are one of the best gifts we can give our kids. For preschoolers especially, reading lays the foundation for language ...