The cellular telecommunications industry is entering a period of transition from aging, analog-era transmission technology to high-speed "third-generation" (3G) mobile networks.

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Whether any company flourishes or fails in the volatile period of transition between an aging Second Industrial Revolution and the emerging Third Industrial Revolution will depend, to a great extent, on their energy costs.

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Earlier this week, truck manufacturer Paccar ( PCAR) said its customers are choosing to hold onto aging trucks for a longer period of time, rather than replace them.

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Jeffrey Keller, a professor at Pennington Biomedical Research Center in Baton Rouge, Louisiana, who studies aging, metabolism, and neurodegeneration, agreed that seeing results after such a relatively short period of calorie restriction was surprising.

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