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Metamaterial applications include cloaking. Discuss the ethical and unethical merits to advances in such areas.

Metamaterial applications include cloaking. Discuss the ethical and unethical merits to advances in such areas.
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With metamaterial cloaking , we use a device to hide something, for that a defined region of space is invisibly isolated from passing electromagnetic fields or sound waves.

These device mostly involves surrounding the object to be cloaked with a shell which affects the passage of light near to it. There is a reduced in a reflection of electromagnetic waves (microwaves), from the object. , the cloak's material properties vary from point to point, with each point designed for specific electromagnetic interactions (inhomogeneity), and are different in different directions (anisotropy).

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