Flat surface tree wells create a cleaner architectural effect where trees appear to grow directly out of the pavement.

Lower down, in the 95 percent of the ocean where light does not penetrate, many living things feed on 'marine snow', the steady drizzle of particles of dead matter, whitish in colour, gradually sinking from the euphotic zone above. Other animals then feed on the 'snow' eaters.

Among other fascinating insights, Penrose explains that the God particle was originally proposed by Peter Higgs as an ingenious theoretical device, and not necessarily appearing as an actual particle. As a device, it allowed other particles to acquire mass,[…].

She was not one of those women who needed to endure complicated half hours of rubbing and prodding and explosive plyometrics before her body tensed and the dam holding back her pleasure burst.