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‘Illusion shell’ makes objects sound like something they’re not

The fabricated illusion shell sits on a golf course surrounded by golf balls

A device studded with holes (left) provides an acoustic mask for objects placed in its interior. Credit: C. Hu et al./Phys. Rev. Appl.

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Nature 609, 12 (2022)



  1. Hu, C., Yin, Y. & Chen, H. Phys. Rev. Appl. 18, 024049 (2022).

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