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, ...

For the past year I have been working with Britain’s BBC television to make a documentary series on the history of women. In the latest round of filming there was an incident that haunts me. It took ...

Apologies to sensitive readers. Here's a bodyhack that we do not recommend. This foot-binding photo is the "most popular" photo on Yahoo News right now. Zhou Guizhen, who is 86-years-old, shows one of ...

Dig out your specialty presser feet and save some sewing time and effort. Dig out your specialty presser feet and save some sewing time and effort using the Bias Binding Foot, Buttonhole Foot, Sequins ...