THE замок GUARD WITH HIS TRIDENT
How many prongs do Ты see?
I see two on the bottom—but on the top, three
Solution: Cover the вверх of the trident and Ты see two prongs. Cover the bottom and the trident now has three prongs. Ты can draw this object, but Ты can’t construct it. (impossible-object illusion)
THE ROYAL MESSENGER ARRIVING WITH A LETTER FOR THE KING
The red tape on the letter is longer than the blue. But is this really true? Remember, now Ты are in OPT!
Solution: Angles are sometimes tricky! The red and blue tapes on the envelope are the same length. If Ты remove the outline of the envelope, Ты can see this. (geometrical-contrast illusion)
THE PRINCESS PICKING A SPECIAL BOUQUET
Цветы fair, Цветы bright.
Which цветок center is larger—the black или the white?
Solution: The black and white centers are the same size. The white center appears smaller because larger circles surround it. The black center appears larger because smaller circles surround it. (geometrical-contrast illusion)
THE OPT SIGN POINTING THE WAY TO THE ZOO
By the sign the royal family will stop. Which line is longer, the bottom или top?
Solution: Both lines are the same length. When the arrows point outward, the line appears shorter. When the arrows point inward, the line appears longer. (geometrical-contrast illusion)
THE BIRTHDAY PARTY FOR THE PRINCE
This gift, unwrapped, tells the Prince’s age.
This is what the dragon said,
“Six blocks become seven if Ты stand on your head. HAPPY BIRTHDAY!”
Solution: You don’t have to stand on your head! If Ты turn the book around, Ты should see seven blocks with white tops. The number of blocks Ты see depends on whether Ты view the boxes as having a white вверх или a white bottom. (reversible-image illusion)
How many prongs do Ты see?
I see two on the bottom—but on the top, three
Solution: Cover the вверх of the trident and Ты see two prongs. Cover the bottom and the trident now has three prongs. Ты can draw this object, but Ты can’t construct it. (impossible-object illusion)
THE ROYAL MESSENGER ARRIVING WITH A LETTER FOR THE KING
The red tape on the letter is longer than the blue. But is this really true? Remember, now Ты are in OPT!
Solution: Angles are sometimes tricky! The red and blue tapes on the envelope are the same length. If Ты remove the outline of the envelope, Ты can see this. (geometrical-contrast illusion)
THE PRINCESS PICKING A SPECIAL BOUQUET
Цветы fair, Цветы bright.
Which цветок center is larger—the black или the white?
Solution: The black and white centers are the same size. The white center appears smaller because larger circles surround it. The black center appears larger because smaller circles surround it. (geometrical-contrast illusion)
THE OPT SIGN POINTING THE WAY TO THE ZOO
By the sign the royal family will stop. Which line is longer, the bottom или top?
Solution: Both lines are the same length. When the arrows point outward, the line appears shorter. When the arrows point inward, the line appears longer. (geometrical-contrast illusion)
THE BIRTHDAY PARTY FOR THE PRINCE
This gift, unwrapped, tells the Prince’s age.
This is what the dragon said,
“Six blocks become seven if Ты stand on your head. HAPPY BIRTHDAY!”
Solution: You don’t have to stand on your head! If Ты turn the book around, Ты should see seven blocks with white tops. The number of blocks Ты see depends on whether Ты view the boxes as having a white вверх или a white bottom. (reversible-image illusion)