Implantable cardioverter-defibrillators (ICDs) are small battery-powered devices that can deliver a small electric shock to the heart in response to a life-threatening arrhythmia (when the heart starts beating rapidly and inefficiently).

FORBES: Practicing Medicine Against the Evidence: The Case of Implantable Defibrillators

Typically, oil prices slump once production capacity starts to grow rapidly and outstrip demand growth.

FORBES: Better Days Ahead For North American Oil Producers

The railway, too, starts to descend rapidly, repeating its routine of hairpin turns, before entering a world of meadows, orchards and vineyards.

BBC: Full steam ahead

The real constraint will come over the next decade when the potential labour force starts to decline quite rapidly.

BBC: NEWS | UK | Scotland | McConnell: 'Come to Scotland'

"A human embryo starts out as a single fertilised cell and rapidly divides into a widely complex series of cells that become a human being, " explained Dr McCallion.

BBC: NEWS | Science/Nature | Salvage prospect for 'junk' DNA

However, the number of iPhone owners is now growing rapidly in Finland as the former Symbian stronghold starts to converge with the rest of Europe.

FORBES: Text-messaging Volume of iPhone Owners Declining Sharply in Finland

If Apple starts marketing cheap iPhones next winter as is widely expected, Google needs to step up low-end Android offensive rapidly in Latin America and Asia.

FORBES: Google's Motorola Deal Could Give Windows An Opening