Demos by PIRA

  7D30.11Scintillation counter using Geiger tube.
  7D30.50Expansion cloud chamber with water and compression bulb.
  7D30.50Wilson cloud chamber, piston compression type.
  7D30.50Alpha range measured using small cloud chamber.
  7D30.60Cloud chamber with dry ice and alcohol shown on TV camera.
  7D30.70Large mechanical model of the cyclotron.