The volume of a pool ball is approx 100 mL. The diameter is 2.25 inches. That gives an approximation for pi of 3.2. https://t.co/JrXxsopxGY17 minutes ago

Our 9-year-old: Why do they call the restaurant Red Robin when the mascot is a cardinal? 16 hours ago

In the latest CMJ Blasjo shows Leibniz's technique for finding the logarithm of any number using a piece of string bit.ly/2a1wynw19 hours ago