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When a ray of light coming from vacuum hits a negative index material (right side), the refractive beam inside the place is on similar aspect of the surface area typical as the event beam. This's unlike the situation for regular positive index materials (left side).

When a ray of light coming from vacuum hits a negative index material (right side), the refractive beam inside the place is on similar aspect of the surface area typical as the event beam. This's unlike the situation for regular positive index materials (left side).

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One-dimensional chain of core-shell pairs connected by ideal springs enables design of the metamaterial demonstrating the negative effective density and negative specific thermal capacity. We assume that the molar thermal capacity of the reported metamaterial is governed by the Dulong-Petit law in its high temperature limit. The specific thermal ca...