TechnologyDeath rays: How the dream of an ultimate weapon became a dark farce The quest for the ultimate destructive weapon is a convoluted story of egos, charlatanry and deception – with a starring role for mercurial genius Nikola Tesla Features
TechnologyA new data-driven idea of warfare doesn't quite add upMathematical models of conflict are seductive, but we shouldn’t throw out the lessons of the past, warns David BetzCulture