March 14 is a sacred day among math fans: It's Pi Day, so named because the date is the same as the first three digits of the famous constant of pi — 3.14 — which measures the ratio of a circle's ...

Math fans, celebrate. Today is Pi Day, a holiday that celebrates the world’s most famous irrational number. What are irrational numbers, you ask? As Penn State Berks professor Joni Queen describes ...

Happy Pi Day! The annual celebration, held every March 14, is your chance to pay tribute to the most famous constant in math and physics: the number you get when you divide the circumference of a ...

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 the centre of ...