The illusion is created when images are presented to your eyes faster than your brain can process them individually, so it combines them into a single image.
This is also how flipbooks or movies on film work: they are made of individual images, or frames, which change so quickly from one to the next that your brain perceives them as one continuous moving image.
Join Our Email List. Learn more about our commitment to safety. The Franklin Institute is a C 3 nonprofit registered in the U. The Franklin Institute. Color the two images however you like. If you do not have a printer at home or wish to make your own images: 1. Cut out two squares of paper, approximately 2 inches by 2 inches. Once your images are drawn, colored, and cut out: 4. What happens when you spin it slowly? What happens when you spin it quickly? Other ideas to try: Try it again with new pictures.
How many can you create? Which images worked best? Try different colors. How did the new colors change how you perceived the image? Could you make a thaumatrope that shows one object moving, instead of two objects combining? How would you do it? It was invented in by the English physician J. Thaumatropes were popular when the Longfellow children were young in the mids. You can make one with very few supplies in your own home! The optical effect is produced by persistence of vision, the retention of the first image by the brain long enough to superimpose it on the other, making the two parts of the image appear together.
Explore This Park. Steps Print and cut out the Thaumatrope Template. This should be the same size as the paper templates. Make sure one of the images is upside down. Carefully use your poking tool to punch out the two small holes in each circle.
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