Brian Greene

One of the strangest features of string theory is that it requires more than the three spatial dimensions that we see directly in the world around us. That sounds like science fiction, but it is an indisputable outcome of the mathematics of string theory.

The central idea of string theory is quite straightforward. If you examine any piece of matter ever more finely, at first you'll find molecules, atoms, sub-atomic particles. Probe the smaller particles, you'll find something else, a tiny vibrating filament of energy, a little tiny vibrating string.

First-class delivery of children's palliative care is life-changing. When families are confronted with the shattering news that their children have a life-limiting condition, their world can fall apart.

The Roman Catholic Church, had it captured me, as it nearly did, would have sent me on some mission of danger and sacrifice and utilised me as a martyr; the Church established by law transformed me into an unbeliever and an antagonist.