Communication Flashcards
What did the San hunter gatherers use to communicate whilst hunting?
Hands signals
What is the most common form of communication?
Speaking words
How did early humans communicate?
With sounds to pass on simple messages, which over time became words.
What was another way that the San used to communicate?
Painting or scratching pictures on the walls of caves about their religion and way of life
What was one of the forms of communication used by ancient Africans?
History and life lessons were taught through songs, often accompanied by musical instruments.
How did the first sailors passing through the Cape send letters to their family in Europe?
They left letters under a special stone on Robben Island. Ships passing by on the way back to Europe picked up the letters and took them with them.
How did the early Dutch and British settlers at the Cape get a message to someone inland?
At first farmers and runners carried the mail inland. In 1843, the first mail coach (the Royal Mail Coach) left Cape Town for Swellendam, carrying passengers and mail.
How does the modern postal system work?
Senders buy a stamp or pay in advance for postage.letters or parcels are placed in a mailbox.
Who invented the first telephone in 1876?
Alexander Graham Bell
Why do you think Alexander Graham Bell was “lucky”?
Another man, Elisha Grey, also invented a telephone, but Bell registered his invention a few hours before Grey.
What did Heinrich Hertz prove?
In 1885, he proved that electric waves travel through the air.
Who was Marconi?
He was an Italian teenager who was fascinated by Herz’s discovery about electric waves traveling through air. In 1895 he succeeded in using these waves to send messages through the air without wires.
What were the problems with Marconi’s first “wireless”?
It couldn’t be used for speech or music, but later scientists managed to improve on the design so that it could play music and people’s voices.
What were the first photos like?
They were difficult to develop, needing to be developed in a dark room. Photos had to be taken in a studio where the light could be controlled. Cameras were big and difficult to use.
Which camera manufacturer helped more people to own cameras?
Kodak
When did the first television transmissions begin?
Television started in the 1930s in other parts of the world, but only started in South Africa in 1976.
What was the computer like before the introductions of the personal computer?
They were large and only universities and big businesses had them. One computer could fill a whole room.
What did Martin Cooper do before anyone else?
He made the first portable cellphone call on 3 April 1973, allowing people to talk to someone else while moving around.
Name five oldest forms of human communication?
Language, symbols, songs, art and dance.
When did the first postal coach leave Cape Town?
1843
Before the mail coach how did letters get sent inland?
Delivered by runners and farmers
What was the first type writer called?
A writing piano
Who invented the telephone?
Alexander Graham Bell
Who was Elisha Gray?
He also invented the telephone but arrived to register his invention a few hours after Alexander Graham Bell
