1. OPTICAL ILLUSIONS...

2. Do you know the legend about the pot at the end of the rainbow?

3. Rainbows can be circular.

4. How is this image similar our perception of rainbows?

5. Do you think that you could ever reach the end of the rainbow?

6. Explain your responses.

7. What does the rainbow do as we move toward it?
Why?

8. Is a rainbow an illusion?

9. The rainbow is not the illusion but that the distance to the rainbow is an illusion

10. Scientists must be sure that the results of their work are not "illusory".
They need to accurately report what "is", rather than their general "impression" of "what is".

11. So, let’s take a look at some examples of optical illusions.

12. OPTICAL ILLUSION 1
This is the Bunny/Duck illusion. At first glance, what do you see? Now give it some time, but do not focus on one certain area, and then ask yourself; what do I
really see?

13. OPTICAL ILLUSION 2
Do you see some squares or rectangles? Really, this is nothing more than a bunch of lines going in every which direction, but the way our mind interprets these lines are totally different!!

14. Optical illusions just trick you into seeing something else
Optical illusions just trick you into seeing something else. They are an error in our perception of the illusion.

15. OPTICAL ILLUSION 3
This is one of the most famous illusions of all time! Almost everyone has seen it! What do you see at your first glance of this illusion! Do you see an old lady, or do you see a young women?

16. A color image might help.

17. The center circles are both the same size.
OPTICAL ILLUSION 4
The center circles are both the same size.

18. OPTICAL ILLUSION 5
Do you see and old man with ivy leaves around him, or do you see a couple kissing?

19. OPTICAL ILLUSION 6
Do the sides of the square appear to be bent in? They are as straight as they come. Take a straight edge and see for yourself!

20. The background of concentric circles makes the squares appear distorted.

21. OPTICAL ILLUSION 7
This uses multiple illusory principles to give the illusion that it is moving when it is absolutely not moving.

22. The brain puts images together because it has learned to expect things
Sometimes the data gets a little confused.

23. even though part of a picture or design may not be completely there.
We may see an illusion because we know what we are expected to see
even though part of a picture or design may not be completely there.

24. OPTICAL ILLUSION 8
How many ways can you view this cube? Is the blue side outside the box or is it inside? Is it on the back of the box of is it on the side? Examine this cube closely, and let the light blue side guide you!

25. OPTICAL ILLUSION 9
This illusion is called the dancing elephant. How many feet and legs are actually there?

26. OPTICAL ILLUSION 10
When you look at this, you probably see a triangle. There is not one there! The way the circle parts are cut out, make us think there is a triangle there even though there isn’t any!

27. OPTICAL ILLSUION 11
Are the diagonals parallel? You bet they are!

28. OPTICAL ILLUSION 12
Do you see a man or beast?

29. Seeing faces is one of the most common illusions
Our brain is primed to see faces.

30. Why do you think faces are so important to our brains?
Think-Pair-Share
Why do you think faces are so important to our brains?

31. OPTICAL ILLUSION 13
A face in the tree

32. OPTICAL ILLUSION 14

33. OPTICAL ILLUSION 15

34. OPTICAL ILLUSION 16 Can you see face in the pillowcase?
People often mistake this kind of illusion as a ghost.

35. OPTICAL ILLUSION 17

36. OPTICAL ILLUSION 18 When you first read this, what does it say?
A Bird In The Bush?
If you read this more carefully you will find that it says A Bird In The The Bush!!!

37. OPTICAL ILLUSION 19
Try and count the dots in the diagram below. Your eyes will make it dynamic attempting to "fill-in" the white circle intersections.

38. What number or letter comes next?
OPTICAL ILLUSION 20
What number or letter comes next?

39. We see what we expect to see
OPTICAL ILLUSION 20
We see what we expect to see

41. OPTICAL ILLUSION 23
A face in the smoke

42. OPTICAL ILLUSION 24
True love! Awwww!

43. OPTICAL ILLUSION 25

44. OPTICAL ILLUSION 23
Woof! This can be found on the backside of marble pillar in the Washington State Capitol Building.

45. OPTICAL ILLUSION 25
A Farmville favorite. Do you see a pig or a lump of clouds?

46. Illusion 26
cat or
mouse?

47. OPTICAL ILLUSION 26
Why does Oregon get the fatty part! I say BOO!

48. OPTICAL ILLUSION 28
What is wrong with this picture?

53. (via @atlasofdiplock)

56. Are the squares above marked A & B the same color or different?

57. Proof: They are the same. The shadow causes an illusion of white.

58. So never make a decision
based
on your observations

61. Another impossible triangle

62. THE END……DNE EHT

63. Images used with permission from the following websites

73. Look at the chart and say the color, not the word.