There is also a number for train, tube and bus timetables to help people get home.

BBC: Holiday revellers given help home

Balasubramanian's group has been pursuing a four-stranded version of the molecule that scientists have produced in the test tube now for a number of years.

BBC: 'Quadruple helix' DNA seen in human cells

He told The Economist that his number one priority was to secure the investment the tube needs without the lengthy and expensive delays involved in privatisation.

ECONOMIST: London Underground

He showed that just as the bad amyloid-42 sped the formation of amyloid clusters, so a small number of pathological prions could convert good prions to the dark side, at least in test-tube experiments.

FORBES: Health