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Sci Fi Science

How to Build a Light Saber

Season 1 Episode 8
A sword made of pure light that can cut through anything, the lightsaber is a truly awesome weapon. But it's not just a science fiction fantasy, Dr Michio Kaku reveals how we could one day build a real working lightsaber.
  • 23 min
  • TV-G
  • Premiered 01/12/2010