"From Beacon Tower to the Internet" Communication and Life PPT Courseware 2

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"From Beacon Tower to the Internet" Communication and Life PPT Courseware 2

modern communication methods

Who invented the telephone?

At the end of the 19th century, American inventor Bell invented the telephone.

Morse sent the first telegraph in human history

Fax machine: transmit charts, documents, design drawings, etc.

Tongxing satellite: Like an international courier, it collects various "letters" from the ground and then "delivers" them to users in another place.

Please choose the appropriate communication method

1. I'm sick and can't go to school tomorrow. Ask the teacher for leave.

2. My aunt is far away in the United States and is celebrating the New Year. I would like to send my regards to my aunt.

3. Dad’s friend needs a document urgently and needs to be sent to him immediately.

4. For holiday team activities, notify team members of the time and place to participate.

I know other ways people sent messages in ancient times

The way to make fillings, such as hiding in fish maw, cakes, steamed buns, etc.

With special sounds, such as bells, drums, firecrackers, etc.

With lights, fire, such as Kongming lanterns, fires, etc.

There are also other signs, decorations, etc., such as signs to lure enemies.

1. How people in the past conveyed information

Do you know the story of the first mailbox?

In 1488, a fleet led by a Portuguese navigator named Dias was in distress at sea. Except for the ship he was on, all the other ships were destroyed and the whereabouts of some crew members are unknown. Before Diaz returned, he ordered his men to write a letter to his compatriots who might have survived, put it in a boot, and hung it on a dead branch by the sea. A year later, another Portuguese navigator, O. de Noir, passed by here and unexpectedly "received" the letter in the "mailbox". Therefore, a small church was built locally to commemorate the victims. Over time, a village sprang up near the chapel, and the story of the "postbox" became legendary. Since then, Portuguese sailors have been using the "postbox" made from this shoe to deliver messages, and the form of using the postbox to post letters has also been passed down. The emergence of the postbox has been recorded in documents in Paris, France in 1653, which is the earliest written record of the postbox. In 1852, the British set up the first postbox in St. Helier, Jersey. It is still in use today and can be regarded as the oldest postbox.

Communication Fantasia

Let’s use our imaginations and imagine what the future of communication will look like.

Perhaps, today’s imagination will become a reality in the near future!

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"From Beacon Tower to the Internet" Communication and Life PPT Courseware 3:

"From Beacon Tower to the Internet" Communication and Life PPT Courseware 3 Do you know how the ancients transmitted information? The beacon tower is a high platform used to light fireworks to convey important messages in ancient times. It is an important military defense facility in ancient times and was built to prevent enemy invasion. In case of enemy...

"From Beacon Tower to the Internet" Communication and Life PPT Courseware:

"From Beacon Tower to the Internet" Communication and Life PPT Courseware 1. How people in the past transmitted information 1. What did Beacon Tower use to convey information? 2. What are the benefits of transmitting messages on ancient beacon towers? 3. What other methods of communication do you know about in ancient times? ... ... ..

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Update Time: 2024-10-20

This template belongs to Morality and Society People's Education Edition Fourth Grade Society Volume 2 industry PPT template

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