The Doctor's Screwdriver, possible?

[radienx000]

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.

[Edtharan]

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 ).