Interactive Optical Illusion Experiments

Optical illusions trick us into thinking we're seeing things we're really not seeing. Objects seem to shrink and grow, and sometimes disappear! With the same index of refraction as vegetable oil, our Disappearing Beaker is a simple, but very effective illusion. The Optical Illusion Card Deck includes a different optical illusion on every card... that's more than 52 illusions (including jokers).
  • list off, grid on  list on or off
  • Mystery Marbles

    Mystery Marbles

    Three marbles move but never touch... Why?
    $5.95–$52.95
  • The Disappearing Beaker

    The Disappearing Beaker

    Review star icon Review star icon Review star icon Review star icon Review star icon (3 reviews)
    A great demonstration of 'index of refraction'.
    $9.95
  • Optical Illusion Card Deck

    Optical Illusion Card Deck

    Review star icon Review star icon Review star icon Review star icon Review star icon (1 review)
    These playing cards include a different optical illusion on every card.
    $8.95
  • Magic Wire Illusion

    Magic Wire Illusion

    Watch as two twisted wires are pulled apart, or are they?
    $5.95
  • Mysterious Glowing Ball

    Mysterious Glowing Ball

    Review star icon Review star icon Review star icon Review star icon Review star icon (21 reviews)
    Fascinating to watch in the dark!
    $6.95–$17.50