A matter of some gravity...

I had to change trains in London today en route from Cambridge back to Liverpool and the walk between Kings Cross and Euston stations gave me the perfect opportunity to indulge my Booknerd tendencies - after several days of extreme Folkie-ness.

I stopped off at the British Library for this shot of 'Newton (after William Blake)' by Eduardo Paolozzi.

I've back-blipped the last four days, from here.