Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Every once in a while, you may see a temperature in Celsius instead of Fahrenheit. Your car thermometer may revert to the wrong system and you don’t know how to change it, for example. Since almost ...

The acquisition of Alani Nu has helped breathe new life into Celsius stock. The company's market share rose over the last year. The metric that is arguably most critical to Celsius stock investors is ...