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
THE TRUCK PAPER
The entire model except for the axles and the engine is made of paper and cardboard. It can make students 3rd-5th grade. The model is like a real machine of the separately mounted parts,...
FOR ANY SOIL
Thanks to the "Modeller-designer" I'm still at school became interested in technical creativity. Three-wheeled all-terrain vehicle is one of my latest designs. It used the engine from a...
