Welcome to The Riddler. Every week, I offer up problems related to the things we hold dear around here: math, logic and probability. There are two types: Riddler Express for those of you who want ...

If you have a project that calls for a perfectly drawn circle and you don’t have a compass, worry not. You can draw perfect circles of all sizes with a few basic office supplies or using only your ...

Let's face it: drawing circles is hard. Our minds are programmed to love the symmetry of the shape, but our hands just can't make it perfect. We're so inadequate at drawing circles, scientists have ...

Forbes contributors publish independent expert analyses and insights. Barry Collins is a tech journalist writing about PCs, Macs and games. We’ve all been in shades of lockdown for months, it’s the ...