Engineering is the discipline of design and construction of mechanical devices, equipment, structures and public works systems. Topics include aircraft technologies, buildings, bridges, robotics and heavy machinery.
I am entering a chemistry contest at my high school. The goal is to build the battery that produces the most watts for one minute. Our battery can't be bigger then 1 foot in any direction and can't use strong acids. What are the best chemicals to use, and what's the best design?
Why does air cool down when pushed around by an electric fan? You would think that air molecules in motion would be creating friction, and therefore increasing the ambient temperature instead of decreasing it. So why do you feel cooler?
If you've ever seen a construction site, you may have noticed that the general plans for construction are drawn out in the form of blueprints. What exactly are blueprints, though, and how are they made? Find out in this article.
Rome is famous for having large public fountains that work without the use of any kind of mechanized pump. How were these fountains able to generate enough water pressure without a motor? Check out this article for the answer to this question.
We are a species of bridge builders. Since time out of mind, humans have engineered structures to vault over obstacles with the help of logs, stone, steel and, of course, ingenuity. So, what keeps our bridges steadfast and strong?
Whether they're sorting out scrap metal or helping us unlock the secrets of the universe, electromagnets are pretty nifty devices. What's so great about magnetism on demand? We'll electrify you with the details in this article.
Did you know that airplanes and space shuttles use the utterly low-tech gyroscope for navigation? Discover the secret behind gyroscopic motion!
The refining of iron ore is one of our most historically significant achievements. The element is so important that primitive societies are measured by the point at which they learn how to refine it.