MUST DO: Conrad Shawcross at St Pancras International

As always in St Pancras, look up; and there’s a new installation worth a special visit alone.

The Interpretation of Movement (a 9:8 in blue), by Conrad Shawcross, is the third instalment of a four year partnership between the Royal Academy of Arts and HS1 Ltd (owners of St Pancras International station) for the station’s public sculpture series, Terrace Wires.

Previous artists for the commissions have included Ron Arad RA, Cornelia Parker RA, David Batchelor and Lucy + Jorge Orta.

This installation is the largest mechanical work to date, stretching out to a 16m diameter as it methodically turns above the station.

Consisting of three articulated arms, the mechanism drives 3 ‘optic sails’ which expand and contract in an orbit from the centre where they eclipse each other. 

The effect is mesmerising – and if you stare at it, the chances are you’ll encourage others to do so too.

Until December, St Pancras International Station NW1