Sunday, 25 April 2021

Creating a resonance driver.

 Creating a resonance driver. The speaker has its note changed. This pulls on the cord which is attached to a spring with a weight. At the right note the spring starts to vibrate wildly.- the resonance frequency #iteachphysics #physics



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Iron Ore Extraction

  Very small-scale extraction of ores. On a wooden spill with iron oxide Fe(III)O and some Sodium Carbonate, and place in a Bunsen Burner. T...