Unbelievable Free Energy Using Speaker Magnet New Simple Invention

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  • čas přidán 13. 02. 2021
  • A new technological trick to light a small bulb using old speakers and a coil of copper wire
    Our goal is to develop amateur thinking
    Have you found out how it works?
    Share your opinion in the comments
    thanks for watching!
  • Věda a technologie

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