Disney used a beam-splitter prism and sodium vapor lights to get cutouts of actors in 1964's Mary Poppins, but this ...

If there’s a reason that fancy holographic displays that respond to gestures are a science fiction staple, it’s probably because our current display technology is terrible. Oh sure, Retina ...

It’s not surprising that some people grow up and still use LEGO in their projects, like [Steve] who has used LEGO to build an optics lab with a laser beam splitter. [Steve] started this project ...