Credit: Keystone-France

The advent of the internet has changed knowledge forever. Before the internet (yes, I was around back then), certain question never got asked. For instance, as a kid, my mom would always say that cutting onions made you cry, but I would never consider asking why onions made you cry. It just seemed like an excuse my mom would give for crying—a Pandora’s box I did not want to open.

But now, we have YouTube, which is a magic answer box for any question you might have. To wit, Reactions, the official YouTube channel of the American Chemical Society, has provided their answer to the question, “Why do onions make you cry?”

So what have we learned? That onions are much more complicated than we thought. Fortunately, if you need a palate cleanser YouTube also has plenty of videos like this: