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Scientists Discovered an Amazing Practical Use For The World's Leftover Coffee Grounds

(matusgajdos17/500px/Getty Images) Charred coffee grounds could make concrete up to 30 percent stronger, scientists in ...

Patterns of polar vortices discovered in lead-free superlattices on silicon

A team at HZB has, for the first time, reported polar vortices in (BaTiO₃/SrTiO₃)₁₀ superlattices on silicon. These results ...