Okay, this is cool (Nth in a series)

[Bob Schroeck]

http://www.cnn.com/2013/09/26/us/new-li ... ?hpt=hp_t3]Scientists make pseudo-matter out of light.  They've found a way to coalesce photons into a matter-like state that forms molecules.  Let me repeat that:  molecules made of light.  And one of the scientists on the project has basically said this is the basis for a real-world light sabre.
-- Bob
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Then the horns kicked in...
...and my shoes began to squeak.

[DeputyJones]

And hard-light holograms!