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Discover Engineering Lecture #2

Professor Martinez ENGR 096. Discover Engineering Lecture #2. Space Shuttle Flip (Click to open clip) The above clip is of the STS-123 Space Shuttle performing an orbital flip in space. NASA is extra careful that the thermal tiles underneath the shuttle have not been damaged upon take-off

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Discover Engineering Lecture #2

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  1. Professor Martinez ENGR 096 Discover EngineeringLecture #2

  2. Space Shuttle Flip (Click to open clip) The above clip is of the STS-123 Space Shuttle performing an orbital flip in space. NASA is extra careful that the thermal tiles underneath the shuttle have not been damaged upon take-off There are literally thousands of engineering related YouTube clips (maybe millions!) YouTube Engineering

  3. Who are the first engineers? Why? What would you consider the first engineering project? Continue on to find the answers… The Beginnings of Engineering

  4. Ancient Egyptians (4000-2000 B.C.) • Developed systems of math, quarrying, surveying, construction techniques • Stone & metal tools, plow • Built large masonry structures (Pyramids, temples, statues) • People who showed special aptitude in certain areas were identified and assigned to specialized tasks • The first real engineers • Construction of Pyramids (2700-2500 B.C.) The Beginnings of Engineering

  5. Largest masonry structure ever built. WHY? • Masonry structures are not as earthquake resistant than today’s steel framed building • Today, bricks/stone are used more for aesthetic purposes than for structural purposes Great Pyramid of Khufu

  6. 58,000,000 tons, 2.3 million limestone blocks (1 ton = 2,240 lbs.) • The Egyptians made the pyramid with less than a single inch of error • All angles on the pyramid are accurate! Great Pyramid of Khufu

  7. Parthenon (447 B.C.) • Made entirely of marble • Column ratios in harmony • Roman Aqueduct (312 B.C.) • Provided running water and sanitation • Major construction using laws of gravity • Still exist today in Italy, Spain, and France Ancient Greece, Rome, and China

  8. The Great Wall of China (220 B.C.) • Built to repel Mongolian invaders • 3,080 miles long • Longer than the distance from here to New York!! • So large you can see the wall from outer space Ancient Chinese Engineering Satellite Photo

  9. Leonardo DaVinci • Could not read Latin, prevented him from learning from other scientists. • Architect, engineer, sculptor, painter • Johannes Gutenberg • Invented the printing press • Growing need to spread information spawned the need for quicker means to copy literature • Borrowed ideas from Chinese method Two Historic Engineers

  10. What do engineers do? • Invent, design, develop, manufacture, test, sell, and service products AND services • Engineering defined: • Profession in which mathematics and natural sciences gained by study & experience are needed to utilize materials and forces of nature for the benefit of mankind Introduction to Engineering Majors Aimee Lopez, Civil Engineer Dilbert

  11. Proficiency and interest in math and science Suggested by high school counselor Relative is an engineer Job prospects High starting salaries YES & NO!! Ultimately its up to you and your job satisfaction Common reasons to be an engineer

  12. Most lucrative college degrees: Nine out of 10 employers see higher competition for qualified engineering graduates, according to a new survey. • Why it pays to be a nerd. (Ha-Ha!) • Click here to see a ranking of engineering salaries Money, Money, Money $$$!!!

  13. Scientists search for answers • Engineers search for answers, but always with an application in mind. • Science is discovery, advancing knowledge. • Engineering tackles problems that prevents product or service (Not maintenance!!) • Engineers are not mechanics or maintenance workers • Mechanics/maintenance workers require specialized classes not normally taught at the university level The Engineer and the Scientist

  14. The Engineer vs. the Scientist

  15. What do engineers have to know? • How different factors and disciplines overlap each other • Examples: • Design of an aircraft engine fan blade • Federal Regulations (Noise, Safety, Quality) • Artificial limb design • Biology, Anatomy, Physiology, Mechanical Engineering • Toothpaste pump production • Cost, Productivity • Small design changes can save millions of dollars

  16. In the movie, I, Robot, Will Smith has a robotic/bionic arm that looks and moves just like a normal arm. (A robot ripped off his old arm) • This is not science fiction, there are engineers working on how to connect human nerves to robots so that when the brain thinks movement the robot can respond quickly • Imagine if the engineers never took a biology, anatomy or physiology course…(check the next slide to find out!) Engineering is INTERDISCIPLINARY

  17. Engineering is INTERDISCIPLINARY Let’s get JIGGY!!

  18. Homework • Page 27 • 1.3, 1.5, 1.6, 1.7, 1.8, 1.9 • Due Wednesday, September 9th

  19. Engineering Research Lab #1 • Grab a laptop and get online • Find three(3) different engineering articles that interest you and briefly summarize them in no more than 200 words each. • For each summary, include the type of engineering or engineers that the article refers to. • Be prepared to share one summary with the entire class. • Turn in your research lab to the professor • News source suggestions: • www.latimes.com • www.bbcnews.com • www.popsci.com • www.msnbc.msn.com

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