Uploaded June 2018 | Updated September 2026, 2 weeks ago

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An exploration of the moon terminator illusion as an example of how to apply the principles of critical thinking when researching a new topic.

Jump Ahead:
@2:31 Videos of the moon lighting pointing "away from" the sun
@4:37 Teacher demonstrates the phases of the moon
@9:24 Rules of Critical Thinking
@18:23 3D Visualization
@29:27 Real-World Verification

Links to more:
National Science Teachers Association demonstrate the phases of the moon
youtube.com/watch?v=wz01pTvuMa0

3 Examples of videos showing the illusion at work (but not understanding why)
youtube.com/watch?v=7ta1t6Sh4uc
youtube.com/watch?v=ZF2sLaYK79I
youtube.com/watch?v=hLTbc-gaKVA

VSauce explains the terminator illusion
youtube.com/watch?v=Y2gTSjoEExc

Mick West demonstrates the illusion with physical objects
youtube.com/watch?v=AI4b_TAkcoM

szulat presents a work of dramatic genius
youtube.com/watch?v=iHzopp9mKtM