The silk was engineered by Tufts University, near Boston, from a silkworm cocoon that had been boiled to create a silk solution that can be deposited as a thin film.

ECONOMIST: Bioelectronics

When these charged droplets come into contact with the surface of the print they collect any substances deposited on it, creating a thin liquid film.

ECONOMIST: Forensic technology

Geraldine was tempted by an offer from Hollywood to make a film of her romance, but Zog assured her that, before they left Albania, he had deposited enough money in overseas accounts to provide for the family's life in exile.

ECONOMIST: Queen Geraldine of Albania