To test this setup, [Tim] used a scrap of copper pipe with a bit of water ... but this experiment shows that a spinning disc of magnets can create heat directly. Optimizing this should prove ...

Magnets aren't attracted to copper, but when the two come together they can appear to defy gravity. Download the Magnetic Copper PDF (384 Kb). Adobe Acrobat is required. SAFETY: Neodymium magnets ...

Unfortunately, aluminum is not magnetic, so it won't work on an induction cooktop. And although it won't cause any harm by ...