The Albert Clock is an ingenious wall clock that uses math problems to tell owners what time it is ...

Welcome to CHEAP, our series about things that are good, but most of all, cheap. CHEAP! You might think the world is complicated enough and there’s no need to make basic tasks harder, right? Right?

The hour, minute and second hands of this clock are all the same length and move smoothly in a circle. The dial contains hour and minute markers, but the numbers are missing. Therefore, it’s ...

We like to think that we're pretty good at math, especially after years of schooling. But every once in a while, a simple third-grade math problem manages to trip us up and make us question our ...