Long before Sony decided to film the 2010 FIFA World Cup in 3D, there was another, eviler group, that invested in stereoscopic technology for sports events: the Nazis. A new report says Hitler's Third Reich built a 3D camera to "accurately time events and identify winners in photo finishes."

There's a physical limit to the number of magnetic bits that you can stuff onto a given area on a traditional hard drive, and we're pretty close to it right now. For hard drives to get bigger without getting, you know, bigger, we're going to have to get creative, and one research team has done this by taking hard drives into the third dimension.

Back in December, we saw some of Zebra Imaging's impressive full-color holographic prints. With funding from DARPA, Zebra has been able to develop and electronic version of the same technology, embodied in an actual glasses-free 3D holographic projector table.

Your fancy 3D TV is really a far cry from 3D, only giving you two slightly different viewpoints of a single, flat scene to create the illusion of depth and being able to see around corners. A new system that uses multiple projectors and fog displays full color 3D images that you can walk all the way around.