We now live in a time where kids think of calculators as just another app. But before they were even standalone electronic devices, mathematicians and engineers had to suffice with a confusing ...

This clock, made by Greg Blonder from a Lego Mindstorms set, is an homage to the slide rule. It’s super simple to read; the upper rule tells the hours and the lower tells the minutes. They move ...

WEST LAFAYETTE, Ind. – Astronauts Neil Armstrong and Jerry Ross, along with about 200 other Purdue University alumni, have added their slide rules to a new exhibit at their alma mater that testifies ...

From cursive drills to slide-rule math, many classroom skills Boomers mastered aren’t required today. These eight near-obsolete habits reveal how schools—and work—changed, and what modern equivalents ...