1. Abstraction Lesson 1 presented by Dr. Natalie Kuldell

2. Reverse Engineering Leaked Need wrench and funnel to use “Flimsies” Fuel Cans used by WW I British army German Wehrmachtskanister, 1930s Snapcap X-marks for strength, expansion Plastic lined Pressed seems “WWII JerryCans”

3. Reverse (historical) Engineering "Study the past, if you would divine the future" -Confucius "Learn from your mistakes" -my mom

4. Forward Engineering Commercial needs (#passengers, cost, distance) ~100 year history of manned flight Consumer data Scientific understanding of materials, physics, atmosphere 238 teams of engineers 8 mainframe computers 2200 workstations 238 teams of engineers 8 mainframe computers 2200 workstations

5. Forward Engineering Scientific understanding of materials, physics, atmosphere

6. Forward Engineering: 154, 154, 154… Wing stress test video

7. Abstraction Hierarchy Some experts in electrical system wiring Other experts who integrate of subcomponents a human invention designed to assist people in engineering complex systems Some system designers

8. Abstraction Hierarchy a human invention designed to assist people in engineering complex systems Everyone has to do their job right for the final product to work No single person understands everything about the final product Interfaces between layers are critically important

9. Abstraction Hierarchy a human invention designed to assist people in engineering complex systems Sequences of DNA encode “parts” Assemblies of parts make up devices Assemblies of devices make a system

10. Why is abstraction useful?

11. Abstraction Lesson 1 presented by Dr. Natalie Kuldell