When light travelling through the core deviates from its course and hits the cladding, the boundary between the two acts as a mirror, and the errant light is reflected back into the core.

ECONOMIST: New-age crystals

Core operating profit, which reflected a jump in top-line revenue and volume synergies from the bottler acquisitions, was 74 cents per share.

FORBES: PepsiCo Beats Estimates With Strong Emerging Market Volumes

But the core of the problem for Spain - reflected very clearly in the market movements of the past few days - is economic growth.

BBC: The vicious euro circle keeps turning