“COAT” FOR BATTERIES

AA cells can be installed in a socket of larger diameter than itself, if you wrap it in several layers of paper, foam or any other available material suitable for this purpose. For example, a galvanic cell AAA can be installed in a standard socket AA.
If the length of the socket is greater than the length of a galvanic cell between their respective contacts should be inserted in a folded several times a piece of aluminum foil.

Recommend to read

  • MOSKVICH-407MOSKVICH-407
    After the great Patriotic war the plant named Kim (Communist youth international) was renamed MZMA — Moscow plant of small cars. At the same time, there have mastered the production car...
  • “LIVING” WATER AND “DEAD”“LIVING” WATER AND “DEAD”
    "I know, I know— says a reader, after reading the title.— Yes, but neither "alive" nor "dead" water does not happen. Tales!.." Is he right? A few years ago, the magazine "Inventor and...