Hi, please take up any further questions with Sir Paul McCartney, thanks

If they go ahead, the plans would radically change the face of the London underground.

Would you wish to live in such a world? (3/3)

The plans would aim to supersede the controversial 'High Speed 2' railway project, giving commuters from Birmingham easy access to the hub of West Ruislip - and beyond! (2/3)

Erratum alert: we have been informed that this is not an artist's depiction of London, but instead the fictional town of Riverseafingal. We apologise for any hurt caused.

In quantum mechanics, systems of particles can be described by a wave function with time evolution governed by the Schrödinger equation.

Previously only observed for subatomic particles, this would make the train one of the largest objects to quantum tunnel.