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Boyd, Edgar F.L.Gillespie
Given the introduction to optical illusions ,each student will be able
to identify and construct four optical illusions illustrated in class.
1.White cord string (medium)
2.Transparent sheets (4) 8"x10"
4.Ultra violet light
6.3 cardboard circles 12"in diameter
7.Assorted fluorescent paint
8.Felt pens designed to write on transparent sheets
10.Straight edge (ruler)
11.Two 8"x 12" cards
12.Six (6) 3" screws; threaded with washers and bolts
Optical illusions are deceptions of the mind. Sometimes these
illusions are concerned with color, and sometimes with objects that are
Constructing Optical Illusions Using Light.
Divide each of the three cardboard circles into four equal parts.
Shade each of the sections on each cardboard with different colors
using a different color fluorescent paint. Place small hole in center
of each cardboard. Place 3" threaded screw through washer, place screw
with washer through painted side of cardboard. Place washer on back of
the cardboard and lock with bolt. Attach completed assembly to drill
and lock in place. Stand in front of ultra violet light, turn off
lights in room. Turn on drill and observe color patterns. Repeat
above procedures for each of the remaining circle cardboards.
CAUTION: DO NOT LOOK DIRECTLY INTO THE ULTRA VIOLET LIGHT
Optical Illusions With Color
Take four(4) 12" sections of string and place each in a different color
of fluorescent paint. Allow string to dry. Construct on the 12" x 24"
cardboard using straight pins. Using the examples in the packet or
examples given in chapter 6, construct several optical illusions of
your choice .
Optical Illusions With Changeable Figures
Place several figures on the board taken from the packet of information
or chapter 6 of reference book. Each student will duplicate each
figure on the 8"x12" card. One can not duplicate with any degree of
accuracy the optical illusions that will illustrate changeable figures
on a computer. To obtain the optical illusions that will illustrate
changeable figures, please contact Edgar Boyd at the school listed on
this Mini-Teach Summary.
Beeler, Nelson F. and Branley, Franklyn M. Experiments in Optical
Illusions, New York: Thomas Y. Crowell Co., 1951.