This video is by far the winner of the “Coolest thing I’ve seen today” award. Mythbuster’s Adam Savage and Jamie Hyneman showed a crowd at NVISION 2008 the difference between a CPU and a GPU (well kind of). While not the most technically accurate demonstration (multi-core CPUs anyone?), it was definitely impressive. For the CPU, they used a robot with “addressable paintballs” to draw a smiley face. Then a huge contraption consisting of “thousands of pounds of aluminum and steel, a mire of high pressure air hose, hundreds of pounds of compressed air, and 1,100 specifically addressed paintballs and 1,100 barrels” to represent the GPU approach. “Leonardo” will make just about any tech geek drool.