CASSELTON, N.D. - Lauren Oberholtzer's fingers fly as she methodically weaves an intricate pattern out of colorful rubber bands. Within minutes the Casselton 10-year-old has created a fun, stretchy ...

There’s a good chance you have a pile of rubber bands sitting in a drawer at home right now. Those stretchy circles are more versatile than you might realize, so let’s put them to good use. We know ...

Around here we mostly enjoy slide rules. We even have our own collections including some cylindrical and circular ones. But [Mathologer] discusses a recent Reddit post that explains a circular slide ...