Transformation optics has been an essential tool for designing cloaking devices for electromagnetic and acoustic waves. All these designs have one requirement in common: material singularity. At the interface between the cloak and the cloaked region, some material properties have to approach infinity, while some others approach zero. This paper attempts to answer a central question in physicall...

Leaders can transform themselves after even what seems like a major setback, in the view of author, who opens with information about her disastrous tenure 1987 as 29-year-old, one first female commodities traders on Chicago Mercantile Exchange. She eventually transformed into becoming CEO Jody Michael Associates, coaching company specializing executive coaching, leadership development, and care...