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Step 9Test the illusion
The final step is to test the illusion using various objects such as pens, keys, playing cards or small toy figures. Place an object in one corner of the front wall and look through the observation hole to view the inside of the room. Move the object slowly to the other corner and notice its apparent change in size.
In the figure, you can see playing cards of the same size but which appear differently sized due to their apparent position in the room. As shown in the video in the intro, move the cards past each other and see one apparently grow as the other reduces in size.
Play this video to see what the optical illusion looks like.
The Ames room was invented by American ophthalmologist Adelbert Ames Jr in 1946.
In the figure, you can see playing cards of the same size but which appear differently sized due to their apparent position in the room. As shown in the video in the intro, move the cards past each other and see one apparently grow as the other reduces in size.
Play this video to see what the optical illusion looks like.
The Ames room was invented by American ophthalmologist Adelbert Ames Jr in 1946.
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