Cell Phone Service Win

Another physics funny, though i feel like this one is a little more esoteric.

So we were talking about electrical shielding and such, and the prof asked a volunteer to get in the Faraday Cage with a radio. The radio didnt work, which proved his point about the structure of the Faraday Cage and how it works. The prof then asks the guy if he has a cell phone and if he could please take it out. He then says "So, do you have any service?" and the guy says, "Yeah. One bar" hehe


i am a nerd :p