Påsse at CRF buildt a big capacitor-bank that could be charged with very much energy. The capacitors are connected in series to a coil of very wide cable. When the energy is released to the coil it generates a gigantic magnetic field in a few milliseconds.
The aluminum-disc are shot in the air. We calculated it flow about 20 meters straight up in the air.
The capacitor-bank is fired by Exploded.