IS it possible to make an actual sonic screwdriver?!

http://en.wikipedia.org/wiki/Sonic_screwdriver

 

I was thinking of a practical method in making one. I thought of buying the sonic screwdriver applying some kind of ultrasound into it.

 

As a method of putting ultrasound in, I would get quartz ( a piezoelectric crystal) and install it within the sonic screwdriver. And then I would somehow apply an alternating current into the quartz to make it vibrate back-and-forth as to produce ultrasound.

 

One question, how do you make alternating current from batteries? Cause batteries provide only DC current.

Looking at Doctor Who, the Doctor fits the trope of a Merlin figure. This makes the "Sonic Screwdriver" a magic wand (and it is used as such to do pretty much what the writers want it to do.

 

Because of this, it will never be possible to make a real one. But it is certainly possible to make a convincing prop (they pretty muhc do that for the show anyway).

 

Sound can do some pretty amazing things though (check out Sonoluminescence: http://en.wikipedia.org/wiki/Sonoluminescence ).