Technological Impacts

1
DRILL
Which of the core technologies could you find in
a hybrid car? List them and give an example for
each.

• Mechanical Engine
• Structural Chassis
• Electrical High Voltage Batteries
• Electronic ECU (engine control unit)

• Fluid Engine Coolant
• Optical CD Player
• Thermal A/C
• Biotechnology Air Filter
• Materials Metal, Synthetic Fibers, Plastics

2
from Lesson 1
Laptop Computer Mars Rover Steering Wheel

• Identify the problem that the technology system
  solves.
• Analyze the technology system
• What is its function and/or application?
• List the resources (core technologies) you
  recognize in the technology system.

3
Todays

• Quiz Wednesday on the following
• Be able to list the 9 core technologies
• You will be given technological artifacts and be
  required to identify which core technology
  corresponds to which artifact.
• You will also need to be able to sketch a diagram
  that shows the transfer of energy in an electric
  car and a gas-powered car.

4
Transfer of Energy
Sketch a diagram that shows the transfer of
energy in an electric car label all components.
Start with
Goes to
Drives
5
Transfer of Energy
Sketch a diagram that shows the transfer of
energy in a gas-powered car label all
components.
Start with
Goes to
Drives
Gas tank
6
Test 3a/3b Solutions
D
H
G
A
I
E
F
B
7
Test 3a/3b Solutions

• 8 Constraints on the
• Safety is the product safe to use?
• Cost is it affordable?
• Reliability will it work consistently over
  time?
• Environmental Concerns does it harm the natural
  or human environment negatively?
• Ergonomics how efficiently can the human body
  utilize it?
• Manufacturability can it be made?
• Quality Control does it meet customer
  requirements?
• Maintenance how easily can it be maintained or
  upheld?

• Design Process

SCREEMQM
8
Test 3a/3b Solutions

• Personal characteristics of engineers
• Creativity
• Resourcefulness
• Ability to think abstractly
• An engine turns _________ motion into _________
  motion.

Linear
Circular
9
Test 3a/3b Solutions

• 7 inputs into all technological systems
• People
• Information
• Capital ()
• Time
• Machines and tools
• Energy
• Materials
• Natural found in nature
• Synthetic human-made
• Composite mixture of natural and synthetic

10
Test 3a/3b Solutions

• Explain why the design process is never
  considered to be final.
• The design process is never considered to be
  final because there is always an opportunity to
  refine, improve, and update designs. There is no
  single solution to most design problems.

11
Test 3a/3b Solutions

• 4 design principles
• Design is the result of a formal, sequential
  process.
• Design is driven by profit motive and market (
  or not).
• Design is the result of goal-oriented research.
• Designs must be continually checked, refined, and
  improved
• What is engineering?
• Engineering is the systematic application of
  scientific, mathematical, and technical
  principles that yields tangible end products that
  meet our needs and desires.

12
Test 3a/3b Solutions

• Risk Analysis an analysis of a technology that
  minimizes the likelihood of undesired outputs
• Constraint a limit or restriction to the design
  process
• System a technology or process that has many
  parts, and each part has a relationship to each
  other and the whole

13
Test 3a/3b Solutions
GOALS
Control
FEEDBACK
PROCESSES
OUTPUTS
INPUTS
GOALS
14
Test 3a/3b Solutions
Sketch and label the components W P R
C V
Cylinder Wall
Piston
Connecting Rod
Crankshaft
Valves
15
CORE TECHNOLOGIES
In your notebook create a chart

• Columns to include in your chart

CORE TECHNOLOGY DESCRIPTION EXAMPLES

16
CORE TECHNOLOGIES
NOTE TAKING

• Do NOT copy everything get key words
• All examples are not necessary write those that
  sum it up to you.
• Listen while you take notes.

17
CORE TECHNOLOGIES
Mechanical Technology

• The technology of putting together mechanical
  parts to produce, control, and transmit motion.

• Example applications
• Gear systems in a car transmission,
• Brakes on a bicycle,
• Agitator in a washing machine,
• Latch on a door.
• Springs in vehicle shocks

18
CORE TECHNOLOGIES
Structural Technology

• The technology of putting mechanical parts and
  materials together to create supports,
  containers, shelters, connectors, and functional
  shapes.

• Example applications
• Legs on a chair,
• City water tower,
• Swimming pool,
• Roadways and Bridges,
• Bicycle spokes
• Airplane wing,
• Satellite antenna disc.

19
CORE TECHNOLOGIES
Electrical Technology

• The technology of producing, storing,
  controlling, transmitting and getting work from
  electrical energy.

• Example applications
• Power plant generator,
• Flashlight,
• Electric motor in a can opener,
• Doorbell,
• Electric heater,
• Hair dryer.

20
CORE TECHNOLOGIES
Electronic Technology

• The technology of using small amounts of
  electricity for controlling detecting and
  information collecting, storing, retrieving,
  processing and communicating.

• Example applications
• thermostat for controlling temperature,
• a metal detector,
• video tape recorder,
• computer,
• pocket calculator,
• telephone,
• radio,
• television.

21
CORE TECHNOLOGIES
Fluid Technology

• The technology of using fluid, either gaseous
  (pneumatics) or liquid (hydraulic) to apply force
  or to transport.

• Example applications
• Air brakes on a truck,
• Tires on a car,
• Airfoils on an airplane,
• Warm-air heating ducts,
• Hydraulic jack,
• Plumbing in a school
• Hydro-electric dam

22
CORE TECHNOLOGIES
Optical Technology

• The technology of producing light using light
  for information collecting, storing, retrieving,
  processing and communicating and using light to
  do work.

• Example applications
• Lightbulb,
• Light-emitting diode,
• Lenses to magnify or reduce,
• Laser speed detector,
• Laser compact disk,
• Fiber-optic telephone communication,
• Laser cutting tools,
• Laser surgical instruments.

23
CORE TECHNOLOGIES
Thermal Technology

• The technology of producing, storing,
  controlling, transmitting and getting work from
  heat energy.

• Example applications
• Furnace,
• Hot water heater,
• Toaster,
• Insulation,
• Heat exchanger,
• Refrigerator,
• Hot air balloon.

24
CORE TECHNOLOGIES
Biotechnology

• The technology of using, adapting, and altering
  organisms and biological processes for a desired
  outcome.

• Example applications
• Stain-eating enzymes in detergent,
• Bacteria leaching metals from ore,
• Altering plant genes to produce better crops.
• Oil-eating microbes used in oil spill remediation
  
• Genetically-modified agriculture

25
CORE TECHNOLOGIES
Materials Technology

• The technology of producing, altering, and
  combining materials.

• Example applications
• Producing paper from wood,
• Producing aluminum from ore,
• Drilling holes in wood,
• Annealing to soften metal,
• Laminating wood.

26
CORE TECHNOLOGIES
Name the core technology
Heat Sink - Thermal
Springs - Mechanical
Chassis - Structural
Gear teeth - Mechanical
27
CORE TECHNOLOGIES
Name the core technology
Lenses - Optical
Air Foil - Fluid
Frame - Structural
Rotating Propeller - Mechanical