Charpentier’s three deck illusion - International Edition

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International Edition - This Model is designed for Euro 1 cent A participant is asked to lift all three decks and then the top deck alone. The participant will think the top box weighs more than all three boxes combined. How does this work? Charpentier, a French physician, discovered this illusion over 100 years ago. The illusion occurs when a person underestimates the weight of a larger object (three decks) compared to a smaller object of the same mass (top deck). The top deck is filled with eighty-four pennies and the bottom two decks are hollow. Most of the weight is located in the top deck. Your mind will trick you every time. This great illusion is perfect for classroom demonstrations, team-building events, and showing friends how easily your mind can be deceived. Step-by-step instructions on how to build this project can be found here: https://youtu.be/JEecNP-kQVI For more information about the size-weight illusion, visit: https://en.wikipedia.org/wiki/Size%E2%80%93weight_illusion First demonstrated online at: https://youtu.be/iItQVjrk00g Scientific research on this topic can be found in: http://psyc.queensu.ca/~flanagan/papers/FlaBel_NN_00.pdf To build the Charpentier three-deck illusion, you will need: * Three top decks * Three bottom decks * Eighty-four pennies * A glue gun or superglue