Lesson 6 of 81901–today7 min
Radio and Wi-Fi
On 12 December 1901, in a hospital building on Signal Hill above St John's, Newfoundland, Guglielmo Marconi listened for a signal sent from a station in Cornwall, about 3,500 km away. What he heard was the letter S in Morse: three short clicks, with no cable in between.
In 1909 he shared the Nobel Prize in Physics with Karl Ferdinand Braun for their contributions to wireless telegraphy. The principle he proved, information carried on electromagnetic waves, is what your Wi-Fi does billions of times a second.
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Sources
- Communication: flags, cables and de-coders (Signal Hill National Historic Site) — Parks Canada
- The Nobel Prize in Physics 1909: Summary — Nobel Prize Outreach
- Wi-Fi Alliance introduces Wi-Fi 6 (generational names) — Wi-Fi Alliance
- Wi-Fi Alliance introduces Wi-Fi CERTIFIED 7 — Wi-Fi Alliance