If you want to know when mathematicians are about to have a breakthrough, you don’t need to look inside their heads. Just watch their movements at a chalkboard. “I’ve always been super intrigued by ...

At first glance, the bright, blue chalk scribbled on the sidewalk might be mistaken for a child’s playful scrawl. But it reads “shot at point blank”. The words are a tribute to Ezell Ford, a black ...

Chalkboard paint is a great way to turn any wall or surface into a usable writing space, whether it's a storage container or the side of your desk, and we've even shown you how to make your own, but ...