Lightsabers in the Real World

The coolest weapon in the Star Wars universe is the lightsaber, even cooler than the death star. It's a high-tech plasma laser, but you can swing it like a sword and show off your swashbuckling skills. The real genius of the lightsaber is that you can kill all kinds of people on film and never have to spill any fake blood (or clean it up). The ability to sell a ton of them as cool toys is a bonus. The best fictional weapon ever. 

Lightsabers come with an in-universe explanation, which is that the business end is made of superheated ionized gas, or plasma. It would be hotter than the surface of the sun. In the real world, such a weapon would be impossible to train with, too dangerous to wield, and its actual use in battle would probably be a war crime. YouTuber Mr. Death explains in gruesome detail what a lightsaber wound would do to you. The good news is that such a weapon isn't at all feasible in the real world. (via the Awesomer)