Major: Chemical Engineering
Action Reaction is a presentation centered on how the basics of chemical reactions can be applied to engineering. The basic principle of a chemical reaction being a rearrangement of atoms is explained using the formation of water molecules. Then, the five key signs of identifying chemical reactions are introduced with video demonstrations of each. For the hands on activity, the “elephant toothpaste” reaction is introduced. It is a safe reaction involving dilute hydrogen peroxide decomposing to air and water with an iodine catalyst. Doing this reaction in the presence of dish soap creates a column of foam. The students then preform this reaction, making a tall column of foam. Finally, presenters explain how reactions like this are used in all branches of engineering to help improve the world.
People rely on the engineering behind the science of sound everyday, whether its through listening to an Ipod, setting up speakers for a public event, or even through hearing aids. And yet, in this digital age, it is not clear to many people how exactly sound is stored in a digital device, what sound actually is, and how sound can be produced electronically. Therefore, this presentation displays and explains the intriguing engineering behind sound and its application in electronic devices.
Roller coasters are engineering marvels that provide the ultimate physical experience, but some people are fearful to take a ride on one. While there are many reasons, this presentation dispels the myths of poor safety and inherent risk involved with riding roller coasters. Three main aspects are analyzed including the effects of forces on the body, particular track design considerations, and restraining systems implemented on different coaster types.
Learn about how to convert heat into electricity! This presentation covers the basics of efficiency, energy usage, energy conversion, and power, and walks students through the materials science behind thermoelectric devices. Students also experiment with their own thermoelectric devices and produce electricity to power propellers.