PURPOSE: Illusion of laser beam reflecting off an image!

DESCRIPTION: The laser beam is directed onto the image of the penny from demonstration L3-19: PENNY AND PARABOLIC MIRRORS. It appears to be reflecting from the image, although the multiple reflections seem to disperse the laser beam so that it does not emerge intact.

A little fog from the fog machine shows the incoming laser beam. Notice that because laser light is more dense than air some of it remains in the illusion chamber after the laser is turned off (photograph at right).

SUGGESTIONS: Please do not use chalk dust for this demonstration; it really messes up the mirror surfaces.

REFERENCES: (PIRA 6A20.36)

EQUIPMENT: Laser on stand with PENNY AND PARABOLIC MIRROR demonstration.

SETUP TIME: 5 min.