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A LITTLE SOMETHING WORTH KNOWING

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TechnologyOne small ahaInvention

Marconi's wireless experiments helped develop this medium for transmitting signals and sound without wires.

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TechnologyOne small aha
Your new ahaThe Radio

Guglielmo Marconi's radio enabled wireless sound transmission, sending the first transatlantic signal in 1901. Source: Radio

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  3. 21Hubert Cecil Booth's early powered version of this suction-cleaning machine was horse-drawn.IDENTIFY
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