From their barrel-like structure, it is tempting to think that vaults could serve as containers for other molecules opening up into flowers when their cargoes need to be released.

ECONOMIST: Cell biology: The secret of the vaults | The

At one of them, East Bridgwater community school, two rusting shipping containers have been used to expand school facilities, with reports that 14 toilets just serve 600 female pupils at another school, Haygrove.

BBC: School building cuts: Hard-hit areas