Uploaded June 2025 | Updated September 2026, 1 week ago

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Why do prisms seem to magically reflect light even though they don't have mirrored surfaces?

This demo visually highlights the difference between refraction and total internal reflection

Optical engineers use these properties of prisms to manipulate in everything from medical devices, to telescopes, to cameras

We have lots of other laser demos like this on our channel if you'd like to see more!

#optics #science #physics #stem #photonics #engineering #prism