If you want to know what time it is, you’ll have to do a little work with this clock. Meet Albert, a wall clock for children that breaks down the current time into math problems. Named after Albert ...

This analog clock has a twist: the only number appearing on the clock face is nine, but it's calibrated correctly once you do the math. Stephen Shankland worked at CNET from 1998 to 2024 and wrote ...

As Barbie once famously said, “Math class is tough.” She stopped saying it pretty quickly because everybody worried she was propagating negative stereotypes about girls, but let’s face facts: it’s ...

Some people like a little challenge in the morning, and that’s what Philippe Chretien hopes to offer with his new device. He is the man behind the Fibonacci Clock, which is exactly what it sounds like ...

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

I own a digital 24-hour clock (i.e., a military time clock) that displays in HH:MM format. Each digit uses the standard seven-segment display in which seven lights toggle on or off to form numbers, as ...

Now, we will use the value of 1 caterpillar (with 5 nodes and 1 flower) to solve the next rows of problems. Row 2: Now, we have 1 clock (with 6’o clock) + 1 clock (with 6’o clock) + 1 caterpillar = 19 ...