The other day while discussing the relative merits of red vs. green laser pointers with a colleague, I got to thinking, "you know what would be cool? A sonic screwdriver laser pointer. I would totally buy that."
I have managed to find instructions on how to make one from a laser pointer and a sonic screwdriver flashlight, but it seems like there are a lot of people discussing how to make these on forums. I feel like geeky academics everywhere would totally love a Doctor-Who-inspired laser pointer. Why has no company produced these yet?
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