ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Conductivity test. Image 2 of 2. Lithium (grey, below right of centre) is being used to complete a circuit. Lithium is metallic and conductive so current flows through it. Hence the light bulb is on and there is a reading on the ammeter. To see the same circuit with the non-metal sulphur instead of lithium, go to A250/128.
Model release not required. Property release not required.