when was this brought from the science fiction to the real world

http://www.youtube.com/watch?v=SUncfeCeYZ8


I saw and episode of the TV show the big bang theory where the guy show a fantastic 3d laser hologram to a girl,I know as a fact it wasn't fake they never do this in this show ,

I found it

http://www.youtube.com/watch?v=jfySIeS1XZE

so I when into internet and I found this


http://www.youtube.com/watch?v=KfVS-npfVuY



I'm very stunned and I can't even understand it ,It like you wake up one day and you see vehicles floating without tires in the air because of the anti gravity you would ask WHEn WAS THIS INVENTED?(this is just and example and please don't tell me it exist :-S  )

  How can you project lasers into a third point x,y,z into the vacuum?? 

  I thought this could never be done ? 

Webb wrote on Nov 13^th, 2012 at 10:50pm:


Ok ,I think this is about a 2 dimensional image creating a "Visual" 3d effect

Not and actual 3d real object made of laser light and PLASMA in a complete empty space

http://www.youtube.com/watch?v=FDK8bEU1s7M

it talks about a projection into and sphere that also makes the "Visual effect of watching in a 3d like in 3d movies"

this is something new This used to be just a concept only real in science fiction and what I have seen so far its also very dangerous and its in early stage of developing