source site We've become so used to technology that it takes something truly spectacular to make us sit up & notice. Well, guess what? It's here. And it's called Fin. It's a tiny ring you can wear on your thumb and control pretty much every smart device you own including your phone, music player, camera and gaming systems. This really is the closest thing to the technology you see on Ironman or any other Hollywood flick. And, lastly, let's take pride in the fact that this invention belongs to none other than a young 23 year old Indian by the name of Rohildev N hailing from Kerala.