Book Review---First book on "Dynamics of Lattice Materials”---by Srikantha Phani and Mahmoud Hussein
“Metamaterials” are the fabled materials exhibiting properties and functionalities that defy expectations. Or at least that's how I have always defined them to myself. These first emerged on the scientific scene in the nineties; or perhaps that is when an extensive flurry of activities on this subject can be traced to. The initial focus was on designing (what appeared to me as) composites with a specific geometrical inner structure that allowed the emergence of electromagnetic properties not typically seen in nature; such as negative refractive index.