I was always a bit fascinated by how the viewscreen on the Enterprise could show images from locations where there were no cameras. Come on, that will never happen, right?
Don't be so sure. Not only do we have several ways to acquire imagery other than simple optical means, Nissan is developing a means to put an optical 'camera' fifty feet above your car to show you what obstacles may be nearby.
Via Mike Elgin's Raw Feed:
Cameras mounted at the front and rear and on both sides take pictures of the surrounding road surface, which are synthesized by an image processing technique into one view that is shown on a central display. The system is especially helpful when parking, enabling the driver to steer easily and precisely into a parking space. It also eliminates any fear of running over the neighbour’s prized belongings or posts or animals or anything else for that matter.