Place any number of dots on a two-dimensional plane—say, a piece of paper—and measure the distance between each pair. If you rearrange the dots, how many pairs could be positioned exactly the same ...

This is part of a series of columns about the viability of the American university system. In the previous installment of this series on the future of higher education, I talked with professors about ...

Digitized handwriting tests may offer a low-cost way to detect cognitive decline, with dictation tasks revealing slower and less coordinated writing patterns in affected older adults. Credit: ...

A few weeks ago, where I live in Johannesburg, a man ran a stop sign and crashed into my Subaru. At the scene he was frantic, unable to gather his thoughts. Half an hour later, I received a lengthy, ...