Mercedes has created a hydrogen fuel cell car, which is impressive enough by itself, but to promote the car they decided upon an innovative approach. Instead of showing the car off, they’re making it invisible. By utilizing a technique first made famous by DARPA, the US Defense Department’s Advanced Research Projects Agency, Mercedes has created an “invisible” car. While not perfect, yet, the technique shows promise to improve exponentially in the near future. Mimicking the natural camouflage of a chameleon, the technique is rather simple in concept. A camera on one side of the vehicle projects an image of whatever’s behind the car onto a “blanket” of LEDs on the front. As LEDs become smaller, the image will be projected at a higher definition and the illusion will be more solid close-up. Right now, DARPA is developing this for tanks to be used in the battlefield, to disorient the enemy and make it a difficult target. Sounds like a great idea that will save lives, that is of course until someone figures out how to hack into it and use the LED blanket to paint a giant target on the side of a tank. Just sayin…