Subject: Holographic image projection display

    My friend went on a trip to italy and went to this exibit where he say 
what he said was some sort of holographic projection.  He said to me that 
there was this display that looked like a hologram that was 3d in image and 
when he tried to put his hand through the image that nothing happened and and 
the picture reamined unchanged.  I was wondering if youguys have ever heard of 
anything like what i had describied?? Thanks 

Re: Holographic image projection display