…to completely and utterly geek out.  I’m sure most of you are familiar with the lightsaber, the signature weapon of the Star Wars films:

Well, it turns out good old Earth science is much closer to making them work in real life than I ever would have guessed:

(Part 2, Part 3)

Truly, a ray of hope for humanity’s future at the end of such a grim week (hey, I’ll take what I can get).