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Talk4 min

The moon illusion

Andrew Vanden Heuvel · TED

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About

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. [Directed by Kozmonot Animation Studio, narrated by Michelle Snow].

The talk

  1. The moon illusion 4 min · TED's player

Credits and licence

Institution
TED
Department
TED-Ed
Speaker
Andrew Vanden Heuvel
Year
2013
Level
For everyone
Language
English
Subjects
Astronomy and space
Source
TED
Licence
CC BY-NC-ND 4.0, as TED states it. Non-commercial use only, and no changed versions. TED's terms
Attribution
TED Talks are licensed by TED under Creative Commons BY-NC-ND 4.0 International and are shown here in TED's own player, as TED's usage policy asks.
Who can watch
TED gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed