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science and technology manual power generation physics model Primary school students generator scientific invention experimental

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  • science and technology manual power generation physics model Primary school students generator scientific invention experimental
  • science and technology manual power generation physics model Primary school students generator scientific invention experimental
  • science and technology manual power generation physics model Primary school students generator scientific invention experimental
  • science and technology manual power generation physics model Primary school students generator scientific invention experimental
  • science and technology manual power generation physics model Primary school students generator scientific invention experimental
  • science and technology manual power generation physics model Primary school students generator scientific invention experimental
$2,540.99

Description

Hand power generation: Size 8 * 10 * 11
Rotating the mechanical arm, through the belt pulley, big wheel with small wheel, small wheel with big wheel, do more power to generate current.
Working principle: kinetic energy is converted into electric motor cutting magnetic induction line movement to generate electric energy, which is transmitted to the lamp, so as to realize the light bulb!
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