Pi day: a brief history of our fascination with this magical number, from pies to ‘piems’
Pi day: a brief history of our fascination with this magical number, from pies to ‘piems’: Oksana Mizina/Shutterstock Imagine a cup of tea. Wrap a piece of string around the circumference of the cup, and measure the length of the string. Then, lay your spoon on top of the cup, making sure it lies across …