It is all holiday at Peckham.

A nonmoving empty train, or a layup, was easiest to pin down at night or on weekends when trains would park on the dormant stretches of express tracks.

The eigenvectors of an orthogonal or unitary operator, corresponding to different eigenvalues, are orthogonal.

As we were leaving the area we were surrounded by girls and women shouting ‘We want Azadi’.