Comments by "Delibro" (@Delibro) on "Turning Gravity Into Light - Smarter Every Day 146" video.

  1. So I learned that the teeth of the gears are important not to be worn out but I didn't learned how the light works before I watched it the second time :-( And I waisted time getting explained how a pendulum clock is working, that every child knows that is interested in technical things.
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