I have long believed that any American general or senior diplomat who wants to work in Iraq should have to pass a test. It would be a very simple test. It would consist of only one question: "Do you ...

Intuitively, the shortest distance between two points is on the straight line joining the two points. But this is true only if one is travelling on a plane surface. In fact, it depends on the shape of ...

Early in geometry we learned that the shortest distance between two points is a straight line. That means if I'm at point A and want to get to point B, the shortest distance between those two points ...