The formula below approve that science can create a real life lightsaber.
Source: http://games.yahoo.com/blogs/plugged-in/science-trumps-force-create-real-life-lightsaber-223711142.html
you cant stop light at a set length so sabers will never happy *pop* sorry to burst your bubble.
They already did that, but they just now came out formal.
Stopped with glass... so no way can burn shit so you fail...