Each prong in the fork is embedded at a different depth in the concrete.

CNN: Is this the 'safest bridge in America?'

But wearables are superficial by nature and cannot provide the level of in-depth data of embedded sensors being developed for the body.

CNN: The wave of wearable computers

To make it work, you connect a Windows PC to the device, which consists of a pair of 960 x 540 Epson displays embedded in the transparent glasses (with a detachable shade, as shown in the prototype above), and a depth sensor attached to the top.

ENGADGET