STEP 2 - BISECT DIAMETER: Set your compass to the diameter of the circle. Put the compass spike at the bottom of the circle and draw an arc that touches the top of the circle and extends more than ...

Now for the important part. Today, as you may know, is Pi Day. Why today? Because it’s March 14—yes, 3/14—and 3.14 is the value of pi to two decimals. Of course, the actual number continues to an ...

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 ...

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 ...