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

Arizona brings something magical to Thanksgiving that you won't find anywhere else. Picture tables decorated with desert ...

For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...

In an era driven by complex data, scientists are increasingly encountering information that doesn't lie neatly on flat, ...

Particles as different as soap bubbles and ball bearings can be made to arrange themselves in exactly the same way, according ...

A factor is a number which divides into another number, without leaving a remainder. Factors should be whole, positive numbers. Factors always come in pairs. This pair will always multiply together to ...

Whether infection of cells by individual virions occurs randomly or if there is some form (s) of competition or cooperativity between individual virions remains largely unknown for most virus-cell ...