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3. Sending messages: electricity
A new medium The ideal method of sending messages over a distance would not involve the physical transfer of an object at all. The use of bonfire beacons is an old method suitable for a limited number of tasks; slightly more sophisticated is the smoke signal. Both of these have a venerable history....
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| Hovedforfatter: | |
|---|---|
| Format: | Chapter |
| Sprog: | Inglês |
| Udgivet: |
Open Book Publishers
2020
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| Online adgang: | https://hdl.handle.net/20.500.13089/494t https://books.openedition.org/obp/15739 |
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