Experiment 11:

Optics

 

This experiment will show you that your eyes can be deceived.
Introduction:

 

 

 

In each of the following two drawings which has the smallest center circle?
Experiment:

 

 

 

 

 

 

 

B
If you thought that the answer was B...... you would be wrong. In fact, both circle are exactly the same size. Check with a ruler.
A
A
B

 

 

 

 

 

Are there spirals or circles?
A

 

Once again it is an optical illusion which enables you to see a spiral which is not really there.

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Figure 1

 

Figure 2

 

 

 

 

There is no difference, check the size with a ruler.
Which is the biggest white rectangle in figure1? Which is the biggest black rectangle in figure2?

 

 

 

 

 

The line is the same but by placing the arrows at the end of the lines, it gives the appearance of a longer line on a bottom.
Which is the longest line?

 

 

 

 

 

 

 

 

 

 

 

Once again, it appears that the lines are curving or sloping but are in fact parallel causing an optical illusion.

 

 

 

 

 

 

 

In the following three diagrams are the horizontal lines parallel ?

 

 

 

 

 

Yet again, your eyes can be deceived giving you the illusion of a moving object.

 

 

Look closely at the center of the drawing. Does it turn?