Elenco Snaptricity® - Manual (Page 83)

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Hypnotic Discs Project #73
Build the circuit as shown. Cut out the red spiral pattern shown and tape it on the fan.
Assembly
Part A
Spin the pattern by briefly pushing the press switch (S2). You will see the most interesting effects when
the pattern is spinning slowly. See if you can hypnotize someone into a trance.
Part B
Replace the pattern with the colored lines pattern shown. When the switch is pressed, the arcs turn into
colored rings with a black background. Notice how the color drops when it is stretched to make a
complete circle.
Part C
Place the circuit under a fluorescent light in your home and spin the disc slowly. As the speed changes,
you may notice the lines first seem to move in one direction, then they start moving in another direction.
This effect is because the lights are blinking 60 times a second and the changing speed of the motor is
acting like a strobe light to catch the motion at certain speeds. This doesn’t work with all fluorescent
lights, due to differences in their circuitry.
Operation
Educational Corner:
When a person is hypnotized, some
thinking capabilities of their mind are
bypassed and they are in a new frame
of thinking and perception. This can
help them relax during medical
procedures or other stressful times.
Try to make your own hypnotic disc!
!
WARNING: Moving parts. Do not
touch the fan or motor during
operation.
!
WARNING: Do not lean over the
motor.