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Inside a wind turbine

Open to everyone until Friday, October 2

To keep it, print it while it is open.

The wind pushes the blades and turns a shaft inside the machine housing. A generator changes that spinning into electric current.

In the picture

  1. Turbine blades: moving air pushes them and the hub spins
  2. Gearbox: speeds up the slow turning of the shaft
  3. Generator: turns the spinning shaft into electric current
  4. Cables: carry the current down the tower to the house

Examples

  • A bicycle dynamo that lights a lamp when the wheel spins
  • A hand-cranked torch that lights up as you turn the handle

Carry on in the app

Three questions on this lesson, to check the idea stuck. Free in the app while the lesson is in the free week.

At least one new illustrated lesson every weekday for your child’s year, with its quiz and a reminder at 6:15 pm.

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Technology, Age 12