The Great Pyramid of Giza was build in the third Millennium B.C. It is about 481 feet high and 456 feet long. Name a modern engineering project you consider to be a greater accomplishment. Explain why.
Seventy-Seven (77) people died during the construction of the Grand Coulee Dam. Should we build large public works projects, knowing the construction is so dangerous people will be killed?
Describe five interesting facts about materials that you learned recently in this class.
During the past few lessons, we have discussed some of the popular materials that engineers use when designing new projects. One material property we haven’t discussed yet is the ability of a material to either be a magnet, or be attracted to a magnet. Explain when these properties would be desirable or undesirable. Give at lease 2 examples each of applications where these properties would be (A) desirable; and (B) undesirable.
Certain materials are used to imply something apart from function. For example granite might imply wealth, although concrete would be functionally equivalent. Give three (3) other examples.
List all of the materials that are in the chair in which you are now sitting. Why are these materials used. Be specific. Why aren’t other materials, such as wood and cloth used?
Some outdoor markers, such as those found in cemeteries, are expected to last for centuries. Based on you knowledge of materials engineering (Lesson 1), why has bronze, historically, been used for this purpose more often than stainless steel? Give at lease 3 reasons.
The types and uses of plastics greatly increased in the early to mid 20th century. How would engineering be different if plastics were not available as a material? Explain your answer.
Many people see scientists and engineers as having distinct job descriptions. Scientists explore, experiment, and discover; engineers create, design, and build. Does this distinction seem clear to you? Or do you see overlap in the functions of scientists and engineers? Explain your answer.
Billionaire tech entrepreneur, Elon Musk (boss at Tesla and SpaceX), called artificial intelligence (AI) more dangerous than nuclear warheads. (1) What does he mean? (2) Explain why you agree or disagree.