Ruth Rogers obituary

My friend and colleague Ruth Rogers, who has died aged 91, was a mathematician deeply involved with solving important engineering problems. Her main area of interest was in fluid mechanics, and in particular rotating fluids – a meeting point between engineering and meteorology. It was here that Ruth was able to make some of her…

Video: Our endless fascination with pi

Credit: CC0 Public Domain For centuries, pi—the ratio of a circle’s circumference to its diameter—has fascinated mathematicians and scientists. The number, which is infinite but never falls into a repeating pattern, is used in formulae throughout the sciences. For more perspective on the significance and fascination with the number, for Pi Day (3.14) the Gazette…