Great Optical Illusions
or
The Eye Can Be Fooled
The first step of the Scientific Method: Collect Reliable Data!
Count the Black Dots!
Which is the Short and Long Line?
Which Line Connects to Which Line?
Are These Lines Parallel?
Are These Squares Parallel?
Colour!
Duck-Rabbit
Elephant Legs
Old-Young
Warp!
Woman-Skull
Bolts and Nuts!
Dark Spots
Stairs Up or Down?
Block In or Out?
Cubes In or Out?
Bullet Through Apple!
Parallax Rails
Chalice or George?
Mystery Spot, Same Guy, Same Height.
High Speed Photography
Magic Card Trick 1
Magic Card Trick 2
Rotation Frequout
Color Circle Mystery
