A school in Bracknell U.K. has been working on a project to bring mathematics to life: a blanket with 100 squares, one square for each number between 1 and 100, each square showing how many factors the number has. A prime number (that is, a number that cannot be divided up evenly, e.g. 17) has a two-colored square, representing that it can be divided only by one and itself; a number that can be divided up more (e.g. 18, which can by divided by 1, 2, 3, 6, 9, and 18) has a square with 6 colors. B.C. Children’s Hospital in Vancouver, Canada, hosted an knit-in event this week aiming to help calm stressed parents ...