Recent content by msr777

  1. M

    Help with leaf electroscope for school use please!

    Thanks for your replies! Sorry for the delay in responding, end of term and a bit snowed under here. @berkeman - yes, I'll upload some photos later. @kuruman - thanks - yes, I have some acetone to clean with. FWIW I ordered 2 types - a small one in a perspex case with a disc on top and a...
  2. M

    Help with leaf electroscope for school use please!

    Hi all I've just had a couple of new leaf electroscopes delivered to a school here, bought cheaply online. They deflect and charge very well but discharge almost immediately when contact is broken. Is this to do with the humidity in my room? If so, would it help to: use tape to seal where the...