General Motors (GM) has filed a patent for a strange technology, called "Autostereoscopic Campfire Display," to project ...

We’ve all seen holograms in movies, and occasionally we see various versions of the effect in real life ... simple device to display a sort of hologram. His display relies on reflections.

The illusion is based on Pepper's Ghost, a theater effect dating back to the 16th century. Produced by Matthew Stuart Follow TI: On Facebook More from Tech It's really simple to build a projector ...

Such thrills are possible at Australia's Hologram Zoo ... to life by a laser projector containing crystals that let simple sunglasses worn by guests separate fields of light.

Here's how! The illusion is based on Pepper's Ghost, a theater effect dating back to the 16th century. Follow TI: On Facebook More from Tech It's really simple to build a projector for your ...