16 July 2024

On and Off Magnet


 How do you switch a permanent magnet on and off? This magnet does it, giving the students quite a problem attempting to work out how it worked. Designing experiments and using magnets and electro-magnets to try and replicate its action.

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Chemiluminescence — Creating Light From a Chemical Reaction

  Chemiluminescence — Creating Light From a Chemical Reaction We are used to making light with electricity, flames or something that is alr...