The Spark Discharge Apparatus is an extremely visual and audible demonstration of the ionization of air caused by Alpha particles
As an Alpha source is moved along the brass mesh, Alpha particles ionize the air, causing a conductive path to form from the mesh to the conductor below, causing a shower of bright sparks and a crackling sound
Moving the source along the track clearly demonstrates that the sparks follow the source
Includes operating instructions
Requires the following equipment:An alpha radioactive source: B8A49591
