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Am I tripping right now?

Classical Mechanics Level 1

A recent viral video depicts a young woman's hair changes back and forth when she enters different room.

Explain this phenomenon.

She is a unicorn The dress is white and gold She is a teenage witch Our perception of the color of objects depends on the the way light is reflected off their surfaces

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Excel in math and science

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It's hard to learn from lectures and videos

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Used and loved by over 6 million people

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including olympiad champions, researchers, and professionals.

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by Pi Han Goh

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