Holograms have been around for awhile, but is only recently that we have figured out how to almost master it. On the core77 website the article entitled Holograms you can feel showed the new advancements to holograms. A new technology has been created where the hologram can notice an object in front of it and use it within the hologram. For example a ball would bounce off someones hand. This hologram not only could notice object, but it could also let you feel these objects, as in a ball or rain dropping on your hand.