Items needed for activity:
  • Old oil lamp
  • Lighter
  • Piezoelectric rocks or pellets
  • Multimeter (to measure voltage when hitting piezo rocks)
  • Steel wires (less than 0.5 mm thickness)
  • Variac
  • DC power supply
  • LED lights (small or big ones with several diodes)
  • Fluorescent powders (such as REDexcent)
  • Polarizing filter sheets
  • A simple solar cell

 

Slides for activity: