History Of Communication

1. History Of Communication

2. Ancient, Classical and Dark Ages (500 000 B.C- 900 AD) The Information Age(1960-Present) The Industrial Age(1800s) The Modern Ages(1900-1960) Middle Ages, Renaissance and The Enlightenment (900-1800)

3. Ancient, Classical and Dark Ages(500 000 B.C- 900 AD) The Invention of The Wheel

4. What is the Wheel? • A wheel is a circular component that is intended to rotate on an axial bearing. It is one of the main components needed for the wheel and axle which is also part of the six simple machines. Wheels allow heavy objects to be moved easily allowing movement or transportation while supporting a luggage, or performing labor in machines. • Common examples are found in transport system. A wheel greatly reduces friction by rolling together with the use of axles. In order for wheels to rotate, a moment needs to be applied to the wheel about its axis, either by way of gravity, or by the application of another external force

5. When was the Wheel Invented • As important as the wheel is as an invention, we don't know who exactly made the first wheel. The question of which culture originally invented the wheeled vehicle remains unresolved and under debate Development of a Functional Wheel This is Heavy The Sledge Log Roller Inventing a Primitive Axle Fixed Axles Make a Functional & Successful Wheel First Carts

6. This is Heavy • Humans realized that there was a way heavy objects could be moved easier if something round, for example a fallen tree log, was placed under it and the object rolled over it. The Sledge • Humans also realized a way to move heavy objects, with an invention archeologists call the sledge. Logs or sticks were placed under an object and used to drag the heavy object, like a sled and a wedge put together.

7. Log Roller • Humans thought to use the round logs and a sledge together. They used several logs or rollers in a row, dragging the sledge over one roller to the next. Inventing a Primitive Axle With time the sledges started to wear grooves into the rollers and humans noticed that the grooved rollers actually worked better by carrying the object further. This was simple physics, if the grooves had a smaller circumference than the unworn parts of the roller which was dragging the sledge in the grooves required less energy to create a turning motion but created a greater distance covered when the larger part of the log roller turned. The log roller was becoming a wheel and humans cut away the wood between the two inner grooves to create what is called an axle.

8. First Carts Wooden pegs were used to fix the sledge, so that when it rested on the rollers it would not move but it still allowed the axle to turn in-between the pegs which led to the axle and wheels creating all the movement. These were the first carts. Improvements to the cart were made. The pegs were replaced with holes carved into the cart frame, the axle was placed through the hole. This made it necessary that the larger wheels and thinner axle had to be separate pieces. The wheels were attached to both sides of the axle. Fixed Axles Make a Functional & Successful Wheel Next, the fixed axle was invented, where the axle does not turn but is solidly attached to the cart frame. Only the wheels did the revolving by being fitted onto the axle in a way that allowed the wheels to rotate. Fixed axles made for stable carts that could turn corners better. By this time the wheel was considered a complete invention.

9. How Wheels Changed the world The wheel made the transportation of goods much faster and more efficient, especially when it was fixed to horse-drawn chariots and carts. However, if it had been used only for transportation, the wheel wouldn't have been as much of a world-changer as it was. In fact, a lack of quality roads limited its usefulness in this regard for thousands of years. A wheel can be used for a lot of things other than sticking them on a cart to carry grain, though. Tens of thousands of other inventions require wheels to function, from water wheels that power mills to gears and cogs that allowed even ancient cultures to create complex machines. Cranks and pulleys need wheels to work. A huge amount of modern technology still depends on the wheel, like centrifuges used in chemistry and medical research, electric motors and combustion engines, jet engines, power plants and countless others.

10. Middle Ages, Renaissance and The Enlightenment (900-1800) The First Network of Communication Towers

11. History of Telecommunication Early telecommunications included smoke signals and drums. Talking drums were used by natives in Africa, New Guinea and South America, and smoke signals in North America and China. This was used to do more than merely announce the presence of a military camp UNTIL 1792 In 1792, a French engineer, Claude Chappe built the first visual telegraphy (or semaphore) system between Lille and Paris. This was followed by a line from Strasbourg to Paris. In 1794, a Swedish engineer, Abraham Edelcrantz built a quite different system from Stockholm to Drottningholm. As opposed to Chappe's system which involved pulleys rotating beams of wood, Edelcrantz's system relied only upon shutters and was therefore faster.

12. Functions of Towers. • Tower has changed the world because it can be used for various different types of Communication. • It could be used for communication Enhancement and Transport Support

13. Communication enhancement • In history, simple towers like lighthouses, bell towers, clock towers, signal towers and minarets were used to communicate information over greater distances. In more recent years, radio masts and cell phone towers facilitate communication by expanding the range of the transmitter. Transportation support • Towers can also be used to support bridges, and can reach heights that rival some of the tallest buildings above-water. Their use is most prevalent in suspension bridges and cable-stayed bridges. The use of the pylon, a simple tower structure, has also helped to build railroad bridges, mass-transit systems, and harbors. • Control towers are used to give visibility to help direct aviation traffic.

14. The Industrial Age(1800s)The Invention of Telephone

15. Invention of Telephone • A telephone, or phone, is a telecommunications device that permits two or more users to conduct a conversation when they are not in the same vicinity of each other to be heard directly. It converts sound, typically and most efficiently the human voice, into electronic signals suitable for transmission via cables or other transmission media over long distances, and replays such signals simultaneously in audible form to its user. First patented in 1876 by Alexander Graham Bell and further developed by many others, the telephone was the first device in history that enabled people to talk directly with each other across large distances. Telephones rapidly became indispensable to businesses, government, and households, and are today some of the most widely used small appliances.

16. How it Changed Communication • It made communication between people because people didn't have to be there physical but you could still have a conversation with them. • It made Communication much easier and cheaper.

17. The Modern Ages(1900-1960)Invention of Television

18. Invention of Television • Television, or TV for short, is a telecommunication medium for transmitting and receiving moving images that can be monochrome (black-and-white) or colored, with or without accompanying sound. John Logie Baird was a British scientist of Scottish nationality, engineer, innovator and inventor of the world's first television;the first publicly demonstrated colour television system; and the first purely electronic colour television picture tube. • There are three types of television: • Electromechanical television • Electronic television • Color television

19. How Invention of Television Changed Communication • Television was a faster and easier method of spreading information, entertainment, and advertising, than the previous media such as newspapers and motion pictures. • It also changed the way people talked in a positive way and a negative way. • Negative Way: • Coarse Language is frequently used • Jargon is said • Sexiest Languauge • Positive Way: • Improved Vocabulary

20. The Information Age(1960-Present)Sony Walkman

21. Sony Walkman • The Walkman was born because Sony's chairman, Akio Morita, wanted to listen to opera music during his long, international flights. He saw a problem and an opportunity to fill a gap in the market that would solve that problem. A company called Stereobelt had already introduced the portable tape player, but it had not been marketed successfully. The first prototype for the Walkman was finished in 1978. It took one year to complete the technology and get it ready for the market.

22. How Invention of Television Changed Communication • It caused less communication between people due to the fact the other person is more focused on their music so its is a limited one way conversation. • It reduced learning though the initial plan was that it will making learning easier.