Penn & Teller have shown the world how a number of magic tricks are done. Let's show you how they do one of theirs. Here's a video shot from the audience of a trick they do in their stage show. As you'll see, they select someone from the audience who has an iPhone and they vanish that person's iPhone with the video running so that the volunteer gets a video of the trick from the iPhone's POV, which will show how it's done. So watch this first…
And then here's a video that was recorded during a different time when they did the trick…