A step towards proper "Help me ObiWan Kenobi" holograms.

So, I've seen this a few places now, some researchers in Japan have created a "True 3D" display similar in appearance to the holographic displays we've been promised in SciFi for years and years.

I am not entirely sure how air molecules can be excited to create plasma by targeting lasers, without the lasers being dangerously powerful. Perhaps it's a resonance thing.  Need to read up on it.

What I want to know is can I build one using two £2.50 laser pointers and a fish tank? :-)

Probably not, but it's a nice idea to add to the "I'll never get time to do this" pile.