The American's with Disabilities Act (ADA) of 1990 dramatically changed our legal attitudes toward the physically challenged. Among the laws enacted was the requirement for wheelchair accessibility at many public facilities and businesses, mostly by way of wheelchair ramps. Do you know how to build one of these ramps to ADA specifications? Take our quiz, and learn more about how to build a proper wheelchair ramp.
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!