Without the Tube, London would certainly not be as large or the successful mega-city it is today.

BBC: London Underground celebrations to mark 150 years

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

The Alabama state legislature has drawn up the Starvation and Dehydration Prevention Act, which prevents the removal of a feeding tube without written instructions from the patient.

BBC: A younger Terri Schiavo

I've decided that if I can't travel the tube without looking at my fellow passengers in fear then I shouldn't, quite frankly, be travelling at all.

BBC: NEWS | UK | Magazine | The discomfort of strangers

Created to help the world's couch potatoes turn the tube on and off without having to make the arduous 2-meter journey to the TV set, the standby feature has spread to virtually every appliance in the home and office.

WSJ: Switching Off Standby Mode

In the lab, Gracias' researchers grabbed dozens of live animal cells from a clump at the end of a tube the width of a capillary, without killing the cells.

FORBES: Breakthroughs

Most importantly for Brent, it secures a major upgrade to the local transport infrastructure, with major work planned to the three local railway stations - including the Wembley Park Tube - and the adjoining road network to ease the notorious Wembley traffic congestion without causing major disruption to residents.

BBC: Wembley

Given a long stick and a stone too big to fit down the tube, they chose the stick without hesitation.

ECONOMIST: Tool use by non-tool-using animals

"With mobile downloads for BBC iPlayer, you can now load up your mobile phone or tablet with hours and hours of BBC television programmes, then watch them on the road, on the Tube, on a plane, without worrying about having an internet connection or running up a mobile data bill, " said Daniel Danker, general manager of programmes and on-demand for the BBC.

BBC: iPlayer launches mobile-download service