At least 23 survivors had been located in one air-pocket of the collapsed building, while two more groups were located close by, bringing the total to as many as 50, says our reporter.

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They regularly drop in on Mr Gold, who quizzes them closely, his wild greying locks and well-stuffed shirt pocket giving him the air of a rumpled physics professor expounding an exotic retail calculus.

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Jernnard boarded the plane Wednesday evening wearing a white button-down shirt with an Air France logo over the pocket and a black jacket with four gold stripes on the epaulets, akin to one worn by pilots, police said.

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Basically, it was possible to make a tennis ball-sized pocket in my mouth, but one which had no air in it as it was just a vacuum!

CNN: Training for civilian space travel is no picnic, Garriott says

Wallenda, a U.S. passport tucked in his pocket, pumped his fist in the air and sprinted the last few steps on the two-inch-wide wire.

CNN: January 29, 2013 -- Updated 1437 GMT (2237 HKT)

"By that I mean try to imagine creating a cavity inside your mouth without any air bubbles and by letting in no air through your lips or throat -- it's basically impossible at sea level because the air pressure outside your mouth pushes the air pocket closed, " he said.

CNN: Training for civilian space travel is no picnic, Garriott says