Catapults are examples of engineering dating back to the Middle Ages (1400 AD).
How tall a tower can you build using simple materials? Try your hand at this feat of engineering.
One of the challenges engineers face is building bridges that can hold up to earthquakes, hurricanes, and floods.
Small Engine Mechanics
Many machines are powered by a small gas engine. Engineers developed the technology to use the controlled explosion created by the firing of a small amount of gasoline to power machines.
Balls on the Rebound
Visit the On the Rebound Drop Chamber Investigate to find out why balls bounce. What influences how well they bounce. I can see balls bounce, but why do they? What causes them to do so? How high do they bounce? Conduct your experiments in the Drop Chamber. Explore this web resource as you seek the answers to these questions and more.