1. The Evolution of Communication
Social Studies
The Evolution of Communication

2. The Evolution of Communication
Social Studies
The Evolution of Communication
How do you communicate?
The history of communication goes back thousands of years.
What has this progress meant to you today?

3. The Evolution of Communication
Social Studies
The Evolution of Communication
Verbal Communication
The most common form of communication.
Spoken communication
Languages and dialects
What dialects are spoken in your area?
In the country?

4. The Evolution of Communication
Social Studies
The Evolution of Communication
Written Communication
Symbols, hieroglyphics, and drawings
The Chinese invent paper

5. The Evolution of Communication
Social Studies
The Evolution of Communication
Johannes Gutenberg and the Printing Press
Books are now mass produced!
There are many excellent websites and books on the topic of Gutenberg and his printing press including,
Biographies
Printing industry history
Media history

6. Mobile Communications
Social Studies
Mobile Communications
Postal system
The Pony Express
Railroads and telegraph
Morse Code

7. Social Studies
The Telephone
Alexander G. Bell calls Watson. Progress includes the use of operators to connect calls.
The basic operation of the phone is still the same, changing sound waves to electrical waves, and back again to sound waves.
Have you ever tried talking to someone using two tin cans and a string?

8. The Telephone Lines Multi-wire Cables Fiber Optics
Social Studies
The Telephone Lines
Multi-wire Cables
Fiber Optics
Much larger capabilities using light to transmit

9. Wireless Communications
Social Studies
Wireless Communications
Radio
Cell Phones
Television
Satellite Communications

10. Computers and the Internet
Social Studies
Computers and the Internet
Computers can handle large volumes of information. The computer stores this information by using a digital code.
The Internet is made up of millions of computers connected to each other in a variety of ways.

11. Communication Aboard the USS Lexington
Social Studies
Communication Aboard the USS Lexington
Morse Code using light
Infrared signals
Hand-held Flag signals

12. A Signalman’s Biggest Challenges
Social Studies
A Signalman’s Biggest Challenges
It is very important for a signalman to stay awake, and process messages with speed and accuracy.

13. Yardman Flags Flag Design Interpreting flags Storing the flags
Social Studies
Yardman Flags
Flag Design
Interpreting flags
Storing the flags

14. Communication on the USS Lexington
Social Studies
Communication on the USS Lexington
Voice tubes
Call signal boxes
Engine order telegraph
Pneumatic tubes

15. Combat Information Center
Social Studies
Combat Information Center
The communication brain of the ship. The main communication tool of this room is the sound powered phone.