But travelling asset-light has not always worked in its favour.

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It added that the burgers were not initially withdrawn but the board had "reviewed its position in light of more recent media coverage" and began taking frozen burgers from school meals' menus from Wednesday.

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The light does not form an image of the reacting molecules, but its interaction with those molecules specifically, which frequencies are absorbed, and how strongly allows Dr Zewail and his followers to work out how the molecules distort and reorganise themselves during the course of a reaction.

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It does shed light on why HP is suddenly adding not quite an iPod dock, but an iPod dock holder to its Pavilion line, although it seems like very strange timing considering Apple isn't selling docks standard with any of its iPod models anymore.

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