๐ Inventions and machines ๐ก Communication
Communication

๐ In short
Communication is the sharing of news, ideas and information between people, by speech, writing, signs or pictures. It has changed a lot, from shouting and smoke long ago to phones and the internet today, so we can talk to anyone in the world in seconds!
๐คฉ Did you know?
- The Frenchman Nicรฉphore Niรฉpce made the first permanent photograph in 1826.
- The first telegraph cable under the Atlantic Ocean was laid in 1858, but it broke down after a few weeks.
- The first radio broadcast with speech and music went out in 1906.
- Sign language is a way of communicating that deaf people use with their hands.
๐ Find out more
๐ Old ways
Long ago people sent news with town criers and messengers on horseback, smoke and fire signals on mountains, drums and homing pigeons.
๐ Writing and printing
When people invented writing, they could keep their ideas and send them in letters. Then printing came, and books and newspapers reached thousands of people.
๐ก Electricity carries speech
The telegraph was invented to send electric signals along wires, then the telephone to carry voices, then radio and television to send sound and pictures through the air.
๐ฏ The internet age
Today satellites and undersea cables link computers and phones all over the world, so we send messages and photos and video-chat with people far away.
๐ธ More pictures



๐งฉ Test yourself
1 Which bird was used long ago to carry messages?
2 What links the world's phones and computers today?
3 Which picture shows โCommunicationโ?