Types of communication
Photon Education
Created on January 20, 2021
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Transcript
Types of communication
Author: Dorota Dankowska
Types of Communication
People make all the effort to communicate with each other for a long time. They've learned how to communicate in many ways: from facial expressions to gestures and sounds to various signals. We express our emotions using universal facial expressions.
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O emocjach informuje nas mimika twarzy.
Types of Communication
To make contact with other people, we've learned to speak, write, and read. Nowadays, people all over the world speak in their own languages.
Types of Communication
But there was this constant need for long-distance communication.
The American Indians used smoke signals.
In Africa, people used drums to warn each other about enemy attacks or a bush fire.
Types of Communication
Many universal signals are still used today.
S.O.S. - Emergency Distress Signal
Warning alert
Types of Communication
You can also use light to transmit information.
A lighthouse - warns of dangerous places on the sea
Traffic lights
https://pxhere.com/pl/photo/1599034
Types of Communication
Communication in the wilderness is possible if you have a flashlight, colored warning flares, or use body language. Correct signaling makes it easier for the group to communicate. But it also saves lives.
Over 180 years ago, a special communication code was developed – the Morse code consisting of dots and dashes.
The Morse Code
The Morse code communication relies on standardized sequences of dots and dashes transmitted as sound signals, electric impulses, or light flashes. To start broadcasting a message, all you need is a flashlight and knowledge of basic codes, such as S.O.S. https://youtu.be/COCV8bZ4bjo
Use a flashlight to transmit the Emergency Distress Signal - the S.O.S - three short flashes, three long flashes, again three short flashes.
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