Magic Stretching Arcs

Magic Arcs are one of the world's most puzzling optical illusions. Simply hold one arc on top of the other. Which is bigger? Now switch their positions. The opposite arc appears bigger now. You can't trust your sense, because the magical arcs aren't growing, stretching, or shrinking. It's a trick that an optical illusion is playing on your brain! Thankfully, the kit comes with magical arcs and a comprehensive guide to help you decipher the magic as well as ideas for similar optical illusions you can demonstrate. Recommended for ages 4 and up.

What's included?

• Starter Set
  • 3 sets of red  & yellow arcs

• Activity Guide included

How does it work?

Magic Arcs use optical illusion to play a trick on your mind. Although the arcs are completely solid and the same size, your brain makes you see one bigger than the other and can even make you believe that they are stretching or shrinking. Your mind compares the arcs but is unable to realize that they are really the same size.

What does it teach?

Magic Arcs can help teach concepts of perception versus reality and false assumptions, all while having fun with optical illusions. Or you can use them to convince your friends that you have magical abilities.