Hovering On a London Bus . . .

Pedestrians and drivers were amazed last week as magician Dynamo appeared to hover above them, holding on to a London bus. The magician and illusionist is famous for making such audacious stunts, and this one was very well appreciated but puzzling. https://www.youtube.com/embed/G06xdAEYcjM?rel=0 How do you think he did it? suu tam Lily Kwang La