How do some entrepreneurs manage to come up with solutions for the toughest problems? They borrow this method from an ancient philosopher. A First Principle is a basic, essential, foundational truth ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Although the theory of lattice dynamics was established six decades ago, its accurate implementation for polar solids using the direct (or supercell, small displacement, frozen phonon) approach within ...