Science – or more appropriately, science fiction – has, for a long time, promised the development and implementation of all sorts of incredible weapon systems and technology. Star Trek has phasers, Marvel Comics has Iron Man; Nikola Tesla worked on a “death ray,” and even Reagan had the Strategic Defense Initiative. But all of the lasers, robots, sonic blasters and puke rays that were once figments of the imagination? They are actually coming into being. Let’s take a walk through the armory.