Choose a product of engineering, such as bridges, skyscrapers, irrigations systems. Create a presentation using software—such as PowerPoint, Prezi, or another of your choosing—to illustrate at least three major changes in this product of engineering. You should have images to illustrate the changes as well as notes about how and why these changes occurred. Remember, engineering needs to adapt to both improvements in technology and changing social needs, so consider how the changes you identify reflect both of these influences. Your presentation should contain relevant images that reflect your points. All written content should be free of mechanical errors and easy to read. At the end of your presentation, include a list of websites or other sources you used to gather your information. You list should include a minimum of three sources.