Tech 84Mr. Graves

DESIGN and ENGINEERING

Vocabulary• Technology• Nanotechnology• Design• Invention• Criteria• Constraint• Brainstorming• Prototype• Engineer• Productivity

Unit Objectives

1. Define technology.2. Connect technology and human needs and

wants.3. Identify steps of engineering process.4. Describe role of engineers and designers and

problem solvers.

What is Technology?

• People using their knowledge to:– Extend their abilities– Satisfy their needs and wants– Solve problems

Space and Medicine

International Space Station Da Vinci Surgical System

Military

Nanotechnology

• Manipulating materials on an atomic or molecular level

• Produced machines smaller than 1/1000 of the diameter of a human hair

• Didn’t happen overnight, though

Why the Development of Technology?

• Lives become more complex• So do needs and wants• Human need to makes life better and easier

Ages of Technology

• Agricultural• Industrial• Information

Agricultural Age

• Began 10,000 years ago• Based on growing crops and raising livestock• Plow, loom, reading and writing,

measurement, money• Growth of towns and cities• Specialization• People worked where they lived

Industrial Age

• Began about 1750• Based upon manufacturing• Steam engine, blast furnace, mass production,

train, plane, automobile, skyscraper• Public Schools• Farms to cities• Greater productivity• People travel to work

Information Age•Began around 1850•Based on knowledge•Telephone, radio, TV, transistor, computer, internet•Electronic business, Electronic education, Globalization, Work goes with you… home or on the road

The Design Process

• Agricultural to Technological age progression due to design

• Design is the process of creating things by planning.

• The process of designing new products is called invention.

• Improving or changing technology that already exists is called innovation.

The Design Process

1. Identify a Need or Define a Problem2. Gather Information3. Develop Possible Solutions4. Model the Solution5. Test and Evaluate the Solution6. Refine the Solution7. Communicate Your Ideas

Identify the Need or Problem

• Some are simple to id and others quite complicated

• Criteria – Things that a design must do or include

• Constraints – Limits placed on the design and designer