The electroscope: a measuring instrument built by yourself

Setting:

  1. At first cut off a longish piece of aluminium foil which is as wide as a finger.
    Now put together both of the two ends of the strip and bend it in the middle.
    Cut off the ends so the strip fits into your glass.

  2. Cut off another strip of the aluminium foil. Put this one in the middle of the first one and bend it completely around its tip.

  3. Now hang the aluminium foil above the toothpick. Be careful that the two halves are hanging close to each other but they should not be touching one another. Now hang the toothpock with the aluminium foil above the glass and so your electroscope is completed.

Die Arbeitsschritte.

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