When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Mathematical equations aren't just useful — many are quite beautiful. And many scientists admit ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Mathematical equations aren't just useful — many are quite beautiful. And many scientists admit ...

The internet is stuffed with online quizzes and surveys, ranging from which "Friends" character you are to who you're about to vote for. But the BBC recently asked something more profound of its ...