Three engines would each drive three fans that are smaller and thus easier to quieten than current ones.

ECONOMIST: Green aircraft

NASA, America's aerospace agency, showed how to quieten the boom by using a fatter wing on a modified fighter plane.

ECONOMIST: Air travel

But to survive in this sizzling heat, relieve the pressure and quieten the aggressive crowd, soccer insiders say England must find a way to possess the ball for long periods.

WSJ: High Hopes on Rooney's Return

The region did indeed quieten down a bit, but Palestinian activists rejected the call, seeing it as an Israeli-inspired ruse to spike an Arab summit set to take place in Cairo.

ECONOMIST: Relative calm

"We couldn't quieten him down, we didn't know what was wrong, so one of the nurses went across to check that she was all right and in fact she wasn't all right, " said Ms Stevenson.

BBC: Hero dog Bertie takes the biscuits