New Ways to Communicate

* Invention - something that is made for the first time.

* People protect their inventions by getting patents on them.

* Patent - gives a person the right to be the only one making or selling an invention.

*1832 - Samuel Morse began work to develop a telegraph.

* Telegraph - a machine that sends and receives signals through a thin wire.

* Six years later, the Morse Code was invented.

*Morse Code uses dots and dashes to represent letters and numbers.

*Delivers messages almost instantly.

* 1844 - the first telegraph message was sent between two cities.

*1876 - Alexander Graham Bell invented the telephone

* For the first time, people could talk without seeing each other.

Underline the sentence that tells how the telephone affected how people communicated.

* Telegraph and telephone helped people communicate over long distances.

* 1896 - Marconi patented a way for radio signals to travel through air.

* 1901 - received the first radio message sent across the Atlantic Ocean.

* The idea for the television is based on the work of Morse, Bell, Marconi, and many other scientists.

* 1939 - the television was introduced to a large audience at the World's Fair in New York.

* By the late 1940's, many Americans owned a television.

* Today, almost every home in the United States has at least one television.

Look at the pictures of communication tools. Number them 1-4 in the order they were invented.

* In the last 20 years, communication has changed even more.

* Satellites quickly send and receive signals for radios, televisions, cellular phones, and computers.

* Technology - the scientific knowledge about how things work.

* In the future, there will probably be many new ways of communication quickly.

* Communicate (yesterdays vocab word) - pass your thoughts and information to others.

Write one detail that supports the conclusion that communication has changed over the last 20 years.

Write a conclusion you can draw about how each type of communication has changed the way people live.

(what is the advantage of?)

Describe how people communicated with each other before the invention of the telephone and how the telephone made communication easier.