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A 3x3 grid of images showcasing a pink circular object with a central pattern of overlapping triangles, squares, and purple and black shapes. The patterns vary across the grid due to different light effects created by crossed polarizers. The pink frame encases the structure, and the central visuals shift in appearance, illustrating light and polarization interactions.
The quantum kaleidoscope, an educational toy designed for the International Year of Quantum Science and Technology. The different light effects produced by the crossed polarizers can teach concepts like quantum state, quantum measurement, and superposition.
Paul Cadden-Zimansky
Opinion

It’s the world’s quantum year. How will you celebrate?

For the International Year of Quantum Science and Technology, scientists and students can help with festivities.

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