hologram

What's the application? Holograms are images of objects that appear three-dimensional-- if you move your head as you look at a hologram, you will see the usual parallax effects, unlike a normal photograph, which is fixed. So, if your hologram includes one object that is partly behind another object, you can see around the obstruction by moving a bit to the side, just as you would if the original objects were in front of you. What problem(s) is it the solution to? 1) "How can we jazz up flat images and make them look more lifelike?" 2) "How can we make credit cards harder to copy?" How does it…