Bruno Michel, manager of advanced thermal packaging at the laboratory, reckons the heat from a medium-sized data centre one consuming a megawatt of power would be enough to warm about 70 houses within a range of 3km.

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Bruno and Michel, his half-brother, are the unloved, 40-ish offspring of a promiscuous mother.

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Mexican Michel Jourdain and Brazil's Bruno Junqueira share third at 74.

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