Uses of holograms and their impact on society

Holograms are a light-based technology that can create 3D projections. The first type of hologram, invented by Dennis Gabor in 1948, was made from a photosensitive film covered with a thin layer of silver and interfered with by an object beam. Complex surfaces can be created by combining two beams from different angles. Holograms can be used for many different purposes, including security and medical uses. For example, if a doctor needs to take a closer look at someone's arm, they can use the 3D image of the arm seen by the camera to get a detailed view.

Holographic displays have improved significantly over the years, but limitations remain in terms of materials and power sources. However, recent developments in holographic displays are now making these visions from the future a reality -- like this company that is developing a "smart mirror." If you've ever had trouble at an airport or using public restroom facilities, these smart mirrors might make it easier to find what you're looking for without having to ask others first. In many cases, this technology may also one day replace our need for maps.

In addition to these wholesome benefits, we also have access to entertainment and education that were previously not possible due to the physical constraints of space and distance between teachers and students. We might even see virtual classrooms where students can interact via holograms!