The people around you shape who you become, how you feel, and what you achieve. Some friends lift you higher, while others leave you feeling exhausted and empty. Building a circle that energizes ...

Forbes contributors publish independent expert analyses and insights. I write about mathematics and its applications The area and perimeter ratios are shown and as n ...

It’s Pi Day – the day that math geeks across the globe collectively pause to celebrate the first three digits of pi, or 3.14. The mathematical constant, which is the ratio of a circle’s circumference ...