These will make you crazy!
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Joined: Jun 2004
Posts: 9,135
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From: USA
This Illustrates That
Our senses cannot always be trusted.
Our mind is the final arbiter of truth.
Perpetually ascending staircase.
How can the man go up all the time and come back to the same place over and over?
[attachment=8120:attachment]
The red squares are the same color
in the upper part and in the lower part of the "X"
[attachment=8121:attachment]
The diagonal lines are parallel.
[attachment=8122:attachment]
There are no gray spots at the corners of the squares.
[attachment=8123:attachment]
The rows of black and white squares are all parallel.
[attachment=8124:attachment]
The center circles are both the same size.
[attachment=8125:attachment]
There are only white circles at the intersections
[attachment=8126:attachment]
Wavy Squares? No!
The background of concentric circles makes the squares appear distorted.
[attachment=8127:attachment]
Rotating Wheels
The circles appear to rotate when you move your head closer and further away from the screen while looking at the dot in the center.
[attachment=8128:attachment]
Warped Square?
There are no curved lines in this! figure.
[attachment=8129:attachment]
So never make a decision based on your observations
Our senses cannot always be trusted.
Our mind is the final arbiter of truth.
Perpetually ascending staircase.
How can the man go up all the time and come back to the same place over and over?
[attachment=8120:attachment]
The red squares are the same color
in the upper part and in the lower part of the "X"
[attachment=8121:attachment]
The diagonal lines are parallel.
[attachment=8122:attachment]
There are no gray spots at the corners of the squares.
[attachment=8123:attachment]
The rows of black and white squares are all parallel.
[attachment=8124:attachment]
The center circles are both the same size.
[attachment=8125:attachment]
There are only white circles at the intersections
[attachment=8126:attachment]
Wavy Squares? No!
The background of concentric circles makes the squares appear distorted.
[attachment=8127:attachment]
Rotating Wheels
The circles appear to rotate when you move your head closer and further away from the screen while looking at the dot in the center.
[attachment=8128:attachment]
Warped Square?
There are no curved lines in this! figure.
[attachment=8129:attachment]
So never make a decision based on your observations
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From: Dublin, Eire
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