There's a lot of talk these days about makeup ingredients. Are they natural? Are they harmful? Are they tested on animals? If you knew what women used to put on their faces, though, maybe you wouldn't be so worried about the ingredients in your new lip gloss. Hey, it might not be 100 percent organic, but at least it won't slowly kill you, right?
How much do you know about how car engines work? And how much do you know about how the English language works? And what about how guns work? How much do you know? Lucky for you, HowStuffWorks is about more than providing great answers about how the world works. We are also here to bring joy to your day with fun quizzes, compelling photography and fascinating listicles. Some of our content is about how stuff works. Some is about how much you know about how stuff works. And some is just for fun! Because, well, did you know that having fun is an important part of how your brain works? Well, it is! So keep reading!