Demos by PIRA

  6A20.30Phantom bouquet: Real image from a concave mirror.
  6A20.30Phantom Bouquet: Real image from a concave mirror.
  6A20.35Clam shell mirrors: Floating coin illusion.
  6A20.35Clam shell mirrors: Floating coin illusion.
  6A20.40Reflections from concave and convex mirrors with lighted arrow.
  6A20.60Concave mirrors focus candle flame on thermopile across bench. (same as 650)
  6A20.60Light the Match (same as C+65+2).