Inventions

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The glass part that fits into an electric lamp, etc. to give light when it is switched on.

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​A phone that does not have wires and works by radio, that you can carry with you and use anywhere

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An electronic machine that can store, organize and find information, do processes with numbers and other data, and control other machines

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A type of oven that cooks or heats food very quickly using electromagnetic waves rather than heat

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 A machine for printing text on paper, especially one connected to a computer

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A piece of equipment worn in or over the ears that makes it possible to listen to music, the radio, etc. without other people hearing it