Simple green technologies have been incorporated into home design for centuries, but in the 21st century, cutting-edge green technologies are the way to go. Some are already available to everyone, whereas some are still in the planning stages. If you're interested in making your future a greener one, take our quiz to learn about the latest in green developments.
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!