So close
In an electrical telegraph shop in France, there was a telegraph engineer called Charles Bourseul. He created one of the first known designs for a telephone… but hadn’t worked out how to convert sound back so it could be understood
How would society survive without the telephone? And how did the evolution of the telephone evolve essentially from 2 tins and a piece of wire, to the global mobile phone network we have now?
Rachel & Melanie take you on an exciting journey of discoveries and failures of the evolution of the phone that includes travel into the space, in the journey of how we have telephones today. And in a world where there are more phones than there are people, what sort of strain does that put on our planet?
Key Events (to be updated)
1854
1876
First conversation
The first known conversation on a telephone was on Friday the 10 of March 1876. Alexander Bell spoke into his telephone and said to his friend “Mr. Watson, come here, I want to see you.”
1876
1877
It becomes clearer
Thomas Edison developed the carbon transmitter which made the sound clearer
1879
The first ring
Mr Thomas Watson developed the ring of a telephone
1879
1891
Step by Step
Almon Strowger – A Kansas city undertaker developed an ability to directly dial between two phones
1965
Launched into space
First communication satellite launches into space
1965
1973
Telephones go mobile
First handheld mobile is demonstrated…. and mobile phone generations commence
UN Sustainable Development Goals
The concepts in this episode can link to the following UN Sustainable Development Goals
Build resilient infrastructure, promote sustainable industrialization and foster innovation
Ensure sustainable consumption and production patterns
Challenge
Make a tin can phone
- You will need 2 clean tin cans and a piece of string (although a this wire works better)
- You will also need an adult’s assistance
Resources
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