If you've ever been lost, you've experienced the frustrations of folding up a map. L. Mahadevan, a professor of applied mathematics at Harvard University, has studied wrinkles and folds, and joins ...

Imagine you're a mapmaker, ready to finish your masterpiece map of the world. The only thing left to do is add the colors. But how many colors do you need for the countries if you want to make sure no ...

The boundaries of states are so engrained in our minds that it can be hard to look at the earth without dividing it into political regions. But there are many other ways of looking at our planet. For ...

In 1900, the great mathematician David Hilbert presented a list of 23 unsolved problems worth investigating in the new century. The list became a road map for the field, guiding mathematicians through ...