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Internal reflection in a Pringles tube...

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Uploaded by on Dec 29, 2007

It's a Pringles tube (Cheesy Cheese flavor!) filled with water, and I dropped in a bright waterproof torch.

Some of the light is trapped within the water (i.e., internally reflected) hence the way it can be poured out and shines from the point where it hits the base of the sink.

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Science & Technology

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  • thanks for the vote of confidence!

  • That's pretty awesome - I may well have to try that for myself at some point. :-D

  • That's the same principe used on optic fiber.

  • COOL

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