Confusionment

Ok. Here's just a small post to express my supreme confusionment.

I recently downloaded a new sketching app for my iPod touch, but I found that I couldn't draw as well with my finger as I could with a pen.

So, like all good do, I Googled iPod touch stylus, and lo and behold, a huge list of pages appeared claiming that a pencil covered with tin-foil would work!

What nonsense is this!, I thought, but surely enough, it worked. But why?!?

Touching the screen with any other material that's not human skin doesn't seem to work, but why does touching a pen wrapped in tin-foil work just like a finger?!?!!

Hmmm...... I hope I'm not going to lose sleep over this.