For all of the recent strides we’ve made in the math world—like a supercomputer finally solving the Sum of Three Cubes problem that puzzled mathematicians for 65 years—we’re forever crunching ...

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 ...