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Mechanically powered torch facts for kids

Kids Encyclopedia Facts
US Navy 100124-N-6214F-019 A Haitian child uses the hand crank on his multi-purpose self-powered radio
A boy winds the crank on his mechanically powered torch radio.

A mechanically powered torch is a torch that is powered by mechanical movement, such as winding a spring and using the stored energy to power it for a small amount of time. It has the advantage of not needing batteries to operate.

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Images for kids

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    German dynamo flashlight from World War I. Pulling the pull-chain spun a flywheel, generating electricity to light the bulb on the front for about 5 seconds.

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