Reporters are kept at a distance: only two Pakistani correspondents are allowed in Delhi, and two Indians in Islamabad, under tight restrictions.

ECONOMIST: India and Pakistan

But Dr Cosmides and Dr Tooby pointed out that before long-distance transport existed, only two of those would have been relevant.

ECONOMIST: Darwinism

Among these parents, living at a distance from their children, half only have visits from their children once every two to six months.

BBC: Many elderly isolated from far-away family, charity says

Experiments currently being undertaken at Stanford, and also by John Price, a physicist at the University of Colorado, will measure the force of gravity over a distance of less than a millimetre (the size of loop expected if there are only two extra gravity-swallowing dimensions).

ECONOMIST: A matter of gravity