Planet Earth has been humanity's home throughout all of our evolution, and will be for the foreseeable future - but until the last 100 years and the commercialization of air travel, most of us really didn't see a lot of it. We had priests or ancient superstitions to tell us how it worked, and that was good enough for a farmer or a nomad living in earlier times.
These days, with the internet and easy and affordable travel for millions, not knowing what's going on with our surroundings is more of a choice than an unavoidable consequence of one's circumstances - and that means many of us have stepped up to find out the facts.
From schools to documentaries to books to simply speaking with the smartest people we know, we have plenty of ways to find out the basics about this blue-and-white marble we call home. We can easily find out with a few clicks how big the earth is, how fast it's moving, and what's going on in its seas, skies, and continents. So let's put some questions to you about all of these fabulous facts, and see how well you really know the only planet on which most of us will ever step foot.
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!