In the age before warning labels and liability waivers, scientific experimentation often looked like something between a ...

In some real-world settings, taxicab geometry is more convenient, and more relevant, than Euclidean geometry. Engineers use ...

But now let's try this a new way. Let’s see how close we can get to pi by drawing a circle. Here's how this will work. You draw a circle. From that circle, you can determine both the ...

In fact, it is the first major milestone in image-making and for that reason, a child's circle drawing may be one of the earliest representations of the self. Circular forms in art are often ...

The Pope hoped to hire a fresco artist and sent to Giotto a messenger, who asked for a competitive sample drawing. With just paper and a pen, Giotto flicked his wrist and drew a perfect circle.