The record-breaking machine used silica tyres filled with helium and ceramic bearings designed to revolve with minimum friction.

BBC: Record-breaking cyclist killed

Here are secrets and codes, an elaborate cipher-breaking machine, an obsession with graves and crazy adventures to find lost manuscripts.

ECONOMIST: The man and his pen

And they defied the late first-half loss of injured record-breaking points machine Pat Richards in doing it.

BBC: St Helens 10-22 Wigan

If the ingenuity of the XO's hardware is impressive, the machine's software is truly ground-breaking.

ECONOMIST: The $100 laptop is fast becoming a reality