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TED-Ed

The moon illusion - Andrew Vanden Heuvel

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12,498 Questions Answered

TEDEd Animation

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Have you noticed how the full moon looks bigger on the horizon than high overhead? Actually, the two images are exactly the same size -- so why do we perceive them differently? Scientists aren't sure, but there are plenty of intriguing theories. Andrew Vanden Heuvel unravels the details of focus, distance and proportion that contribute to this mystifying optical illusion.

Watch the video and finish the Think section to complete the lesson.


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Meet The Creators

Educator
Andrew Vanden Heuvel
Director
Tolga Yıldız, Serin İnan
Artist
Evren Rodoplu, Hakan Taskiran
Narrator
Michelle Snow

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