Mathematicians have illuminated what sets of points can look like if the distances between them are all whole numbers. The change of plans came on a road trip. On a beautiful day last April, the ...

Consider five-digit binary numbers: strings of five bits that are either 1 or 0. The “Hamming distance” between two numbers is given by how many of their corresponding bits are different. So the ...

All of these features should be included on a map. These features are essential for understanding and using the map correctly. Maps are divided into a series of squares known as a grid. These grids ...