Observing a bit of physics magic, Veritasium examines what happens when a slinky is dropped in beautiful slow motion. Why doesn't the bottom fall? Because Science is making it levitate.
They're pitching the city of Stockholm at a real estate trade show, but the actual words aren't important -- just pay attention to the objects Charlie magically pulls out of his tablet screen.
With all those iPads on stage, I'm surprised they didn't finish the show with a "Boom! One more thing ... "